Faulty Milwaukee Fast charger | Can I Fix It?

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In this video we're going to be taking a look at a Faulty Milwaukee Fast Charger. I purchased it from eBay for spares or repair, and it was listed as not working.
Caution should be taking when working with mains voltage equipment, due to the risk of electric shock.
I'm not an expert, but I do enjoy trying to fix things.
If you enjoyed this video, or found it useful or helpful, please consider subscribing. It's free and you'll be notified when I upload more videos.
Thank you for your support!
Some of the tools I use:
The Famous Blue Mat: amzn.to/47bPNGK
170 piece electronics tool kit (security bits): amzn.to/3FGLWpr
Aixun T3A Soldering Station: amzn.to/3u2SBri
Infiray P2 Pro Thermal Camera: amzn.to/47c05Xm
Soldering Flux: amzn.to/3Qn8Yq7
Low Melt Solder: amzn.to/3QICZ5r
Component Tester: amzn.to/46UcHm6 alternative (slightly cheaper) amzn.to/49yZSzJ
Overhead Camera Mount I Use: amzn.to/3tX8Ar4
Microscope Light (I use on my Trinocular): amzn.to/3FEAPgy
AD409 Pro Microscope 10" Screen: amzn.to/3G0CI7P
Extra Long Torx Drivers(used on Milwaukee radio): amzn.to/40siUU3
DC Power Adapter plugs 38 PCS: amzn.to/49lCUMm
#electronics #electronicsrepair #repair #milwaukeepowertools
Milwaukee Fast Charger Repair
Milwaukee Fast Charger not working
Milwaukee M12-18 FC Repair
Milwaukee Fast Charger Fix
Fixing a Milwaukee Fast Charger
Repairing a Milwaukee Fast Charger
Faulty Milwaukee Fast Charger

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Опубликовано:

29 сен 2023

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Комментарии : 293

@jansmit4628 9 месяцев назад

When mounting selftapping screws, it is a good practice to place them manually, then first rotate them counter clockwise until you feel a click, then mount it clockwise. By doing so, the screw does not create a new path in the plastic or metal but runs (most of the time) through the original path.

@BuyitFixit 9 месяцев назад

Yes, I do this pretty much all the time especially when screwing screws into plastic. I saw it on a video years back. Works for non self tapping screws too. What happened here was that there was goo on the threads of the steel screw which stripped the threads in the aluminium as they originals weren't self tappers. The heat sink was actually tapped. Thanks for the tip though, as I might not have known 👍

@michaelbraaten 9 месяцев назад

Great advice! Thank you for sharing that!

@fouroakfarm 8 месяцев назад

Hadnt read that before. Thanks for the tip!

@tmorton922 2 месяца назад

I call it backthreading . Good point

@plasma453 9 месяцев назад

A mystery to me why this guy hasn't got more subscribers, I mean he's very good and subscribing is free ffs

@BuyitFixit 9 месяцев назад

Awww thanks plasma Dave👍. Yes I know what you mean, I used to get quite disheartened over it as I did a video quite sometime back on an old firefox F7 videogame. I think it got around 250 views and a similar video around the same time got 500k views 🤷‍♂️ anyway channel is slowly growing..It's actually a fair bit of work to do videos and quite time consuming. Trawling Ebay for interesting items, testing them (I've had some that work fine), ordering parts, editing video, and not to mention the time actually diagnosing and repairing 🙂👍

@plasma453 8 месяцев назад

@@BuyitFixit I have a tiny channel and getting even 1k subs is seemingly impossible. I'm not that bothered really though but agree it is an awful lot of work.

@BuyitFixit 8 месяцев назад

Keep at it mate, I felt exactly the same 👍

@AubsUK 8 месяцев назад

This post made me check if I was subscribed. I wasn't, but I am now! Thanks for the reminder 😁

@jasonvandervalk3679 5 месяцев назад

I agree! Not many people can do this kind of repair. I watch alot of tool channels and none are this detailed

@safcforme 9 месяцев назад

Nice surprise to hear a local accent and even nicer to hear 'zener' and 'aluminium' pronounced correctly lol

@BuyitFixit 9 месяцев назад

Thanks 😂😂😂😂

@Ea-Nasir_Copper_Co 9 месяцев назад

@@BuyitFixitI’ve always wanted to ask where specifically your accent is from. I live in Western Canada where, in an area nearly the size of Western Europe, everyone who speaks English as their mother tongue speaks with the same accent. The CBC has a lot to answer for.

@ralphj4012 9 месяцев назад

Only one Freudian slip with zee (26:38), nobody's perfect, ho, ho.

@jason7741 9 месяцев назад

@@Ea-Nasir_Copper_Cobest guess from me is North East England, i.e. Northumberland

@BuyitFixit 9 месяцев назад

It's a Geordie accent. It's north east England around Newcastle. I grew up in a town called South Shields which is just slightly South of Newcastle.

@MikeyMack303 4 месяца назад

I really like your approach to electronic repair! I noticed, many years ago, that the most common problem was bad connections.... mostly, bad solder joints! Thank you for what you do!

@BuyitFixit 4 месяца назад

Thank you for your kind comments, and you're very welcome 🙂👍

@JoBo-ug6tf 8 месяцев назад

You sir, are a madman: You completely reassembled it before verifying it worked. I salute you! 😅

@BuyitFixit 8 месяцев назад

😂😂😂 I usually have quite good luck (or I'm over confident). It does sometimes bite me though, like on the JVC valve HiFi video I just did...

@JoBo-ug6tf 8 месяцев назад

@@BuyitFixit I saw... You didn't do nearly enough groaning as I would've! But in fairness, you kinda had to reassemble it in order to test it. Maybe not put the cover back on tho! 😄

@BuyitFixit 8 месяцев назад

@@JoBo-ug6tf The power of editing 😂😂😂😂

@Mymatevince 8 месяцев назад

Really enjoyed the fault finding on this one Mick, well done!

@BuyitFixit 8 месяцев назад

Thanks Vince 👍👍

@inothome 8 месяцев назад

Love the "Yesssssss", nice one! I have never seen a flyback IC and switch in one package before or never noticed one. Nice how it's all integrated and makes sense.

@Blacklab99 9 месяцев назад

You are a genius my friend. It’s a pleasure to watch you work.

@BuyitFixit 9 месяцев назад

Thanks Steve 🙂👍

@generaldisarray 9 месяцев назад

Excellent work as always

@BuyitFixit 9 месяцев назад

Thank you so much 😀

@Sibbe2560 9 месяцев назад

My favourite repair channel…👍👍

@BuyitFixit 9 месяцев назад

Wow, thanks!

@bobbygeorge77 9 месяцев назад

Tremendous skills Mick.

@BuyitFixit 9 месяцев назад

Thanks mate 👍

@digitalwoodshop 5 месяцев назад

Great Video. The explanation of the various areas helped me understand the power supply better. Good Fix. Glad you covered the Safety info.

@BuyitFixit 5 месяцев назад

Thanks 👍

@wherami 9 месяцев назад

Always a great learning experience

@BuyitFixit 9 месяцев назад

Glad to hear that! Thanks JS👍

@user-te1le7ck6b 9 месяцев назад

Great work yet again

@BuyitFixit 9 месяцев назад

Thank you! Cheers!

@waynetaylor2784 9 месяцев назад

Excellent video as always

@BuyitFixit 9 месяцев назад

Thanks Wayne 👍🙂

@RaithUK 2 месяца назад

Nicely done fella.

@BuyitFixit 2 месяца назад

Cheers 👍

@in2dodo744 9 месяцев назад

Thank you so much! It's a very interesting video! You show us all the process! A very good vidéo

@BuyitFixit 9 месяцев назад

Thanks so much👍. Yes I do this to help people learn what I know and hopefully repair their own devices 🙂

@artursmihelsons415 8 месяцев назад

Great video and excellent job! 👍 To prevent bangs, I'm running unknown or repaired mains circuits through my bulb box with switch selector for different wattage.. 😉 It's day saver, especially, when something faulty goes unseen at first look.

@BuyitFixit 8 месяцев назад

Thanks. I'll have to get round to making one 🙂👍

@chrissmith7655 9 месяцев назад

Hi, excellent work and very interesting. Many thanks from Nr Chester.

@BuyitFixit 9 месяцев назад

Many thanks, glad you enjoyed it 👍🙂

@599miata 4 месяца назад

Great job again mate.👍👍👍👍

@BuyitFixit 4 месяца назад

Thanks mate 👍🙂

@akdenyer 7 месяцев назад

I have fixed a few of those. I have one with a failed transformer. I keep the chips in stock. I might data the transformer and rewind it for fun. I do have 2 winding machines, just got to make the mandrel to hold the bobbin. Good fun fixing this stuff.

@BuyitFixit 7 месяцев назад

Nice 👍Thanks for commenting 🙂

@user-sr1tq5eb8p 9 месяцев назад

Thanks for sharing this video

@BuyitFixit 9 месяцев назад

My pleasure, and thanks for commenting 👍

@LilasTools 7 месяцев назад

Great work! 👍👍

@BuyitFixit 7 месяцев назад

Thank you! 👍

@bramcoteelectrical1088 8 месяцев назад

😊Love your work. I am a professional electrican but like to tinker and fix stuff for hobbies at weekends so like to learn how to go about electronic repairs😊 thankyou

@BuyitFixit 8 месяцев назад

Thank you. I'm no professional but I do seem to have a bit of a knack for fixing things 🙂👍

@bramcoteelectrical1088 8 месяцев назад

@@BuyitFixit definitely I am watching your Stamford Stamford genny video learning about that so thankyou

@tristanroberts1645 7 месяцев назад

Great work 👍

@BuyitFixit 7 месяцев назад

Thank you! Cheers!

@thetraindriver01 7 месяцев назад

Awesome job 👍

@BuyitFixit 7 месяцев назад

Thanks 👍

@jasonvandervalk3679 5 месяцев назад

I only discovered your channel I like how you fix things that other people would throw away. Great work. I find it weird so many Milwaukee tools. I own 11 m12 tools. Most of my tools are dewalt. And now have m18

@BuyitFixit 5 месяцев назад

Welcome aboard! When I started the channel I repaired a couple of Milwaukee tools that I bought broken from eBay as I was expanding my own collection. If I had a few Dewalt tools to start with, I'm sure you would see a lot of broken Dewalt tools instead 🙂

@jasonvandervalk3679 5 месяцев назад

@@BuyitFixit so far I haven't had many problems with my dewalt tools.

@kareno8634 8 месяцев назад

Even if i don't know workings of electronics, i find watching electronic work, whether successful or not, Interesting. One day i may understand this and what's parts are to Fix the Dead. Nice job, *Thanks!* Cheers

@BuyitFixit 8 месяцев назад

Thanks 🙂Have a look at the video I did on the switch mode power supply. It's works the same as this pretty much and I explain how it works and what most parts do👍

@kareno8634 8 месяцев назад

@@BuyitFixit Thanks! i will

@lmwlmw4468 8 месяцев назад

Nice work.

@BuyitFixit 8 месяцев назад

Thanks 👍

@user-un2ni8dl7y 8 месяцев назад

Good work 👍

@BuyitFixit 8 месяцев назад

Thank you! Cheers👍

@positivefix 9 месяцев назад

I bought one of these as spares or repair, almost as good condition as this one, when it arrived I plugged it in, put an M18 battery on and it charges fine, tried an M12 and that charged too. Been working fine ever since.

@BuyitFixit 9 месяцев назад

Nice👍 I too have bought a few things from eBay like that. Only problem for me is that they don't make very interesting videos when I start recording and it's "oh.. it's working fine..." 😂😂😂😂

@juanitoseme8632 7 месяцев назад

Thanks for sharing

@BuyitFixit 7 месяцев назад

Thanks for watching!

@MultiReadify 4 месяца назад

I love your channel and I'm so thankful you share your knowledge and experiences... but! I have a question... how does someone with your skill level and a Fluke 179 (quite expensive) not have a vacuum de-soldering tool such as the Hakko FR-301 (the model number changes based on the type of plug and if its 110 or 220v)? It is a life changing tool for me and makes de-soldering a breeze. You stick the tip around a pin, it melts the solder, then you pull the trigger and all the solder gets sucked out and into a removable chamber you can dump out later. It even gets the solder from down in the hole of the PCB so its completely clean (it takes a little practice to get it perfect each time). I sincerely hope you have not seen one of these and this comment is a great contribution to your talents. Either way, keep making these videos.. I'm learning so much from you!

@BuyitFixit 4 месяца назад

Thanks 👍I have seen those before, I had thought about getting one but a lot less things seem to use through hole components these days and more seem to be using surface mount. I've just recently got myself a new hot air rework station, so I still may invest in one in the future. Thank you kindly for the advice and the support 👍

@histguy101 7 месяцев назад

Good job! If you take a bad charger to Milwaukee for warranty, they'll just dump it and give you a new one, when it's probably very often a simple fix.

@BuyitFixit 7 месяцев назад

Thanks 👍I've seen expensive equipment being thrown away before and as you rightly say it's often a small part that costs pennies.

@viralpatel5338 6 месяцев назад

Finally found someone whohas a drive like me to fix everything they can

@BuyitFixit 6 месяцев назад

Yes👍I'll have a go at pretty much anything.. and why not! It's already broken after all 😂😂😂😂

@InssiAjaton 7 месяцев назад

I would put some heat shrink tubing on the probe tops, leaving just 1/8" or 3 mm at the very tip not insulated. That way the danger of unintended touching would be greatly reduced in the live voltage measurements. Another handy thing comes from Big Clive - he takes photos of both sides of the board and prints one as is, and the other one mirrored, so both appear as seen from the same side and pads matching. Often he then inks component outlines on the solder side picture. That makes his reverse engineering and probing much easier. One more note is about the conformal coating applied on the board. There are 3 common choices, 1) silicone that is soft and easy to punch through, 2) urethane, tougher, and 3) epoxy, nearly impossible with just probe tips. I have had my battles with an Exacto knife, a surgical knife and sometimes even my Dremel!

@BuyitFixit 7 месяцев назад

Thanks for that 👍Yes someone else suggested about the heat shrink on the probes. I meant to get round to it, then totally forgot. I watch big Clive too, and have seen where he takes the pictures of the boards when reverse engineering 🙂 I had an electric toothbrush which the wireless charger was all potted with epoxy. I was going to have a look at it but it was virtually impossible to get apart. Thanks for commenting 🙂

@adambikes65 8 месяцев назад

Good fix! I've had a few rapid chargers fail, one was the mains voltage switcher and another was the dual diode. The rapid chargers seem to fail a lot (lots on ebay for spares) and I've had them fail at work. Maybe they run too hot. I've had my standard rate charger for many years without issue, I like it more than the rapid because I feel it's better on the batteries at the lower charge current.

@BuyitFixit 8 месяцев назад

Thanks Adam 👍interesting about the rapid chargers failing more often. I also suspected the switching IC 🙂

@Enjoymentboy 7 месяцев назад

Agreed. I'm not a fan of fast charging and I'd rather the expense of a second or third battery for quick swaps but charge slower and extend the lifespan of the batteries.

@simonrawle7885 9 месяцев назад

I did see that post on Reddit. Was a interesting post on the protocol

@BuyitFixit 9 месяцев назад

Thanks Simon. I had been going to do a video on it, but wasn't sure if people would have been interested.

@olvano 20 дней назад

good job sir

@BuyitFixit 19 дней назад

Thank you kindly 👍

@shepherd1006 9 месяцев назад

Its a pity you don't live next door great work

@BuyitFixit 9 месяцев назад

Thanks 👍

@clownhands 4 месяца назад

Greetings from New York. Just found your channel and loving it. Based on how much time is left in the video I get a sense how close you are to the solution :-)

@BuyitFixit 4 месяца назад

Awesome! Thank you!

@riskifixes 9 месяцев назад

Good one👍

@BuyitFixit 9 месяцев назад

Thank you! Cheers!

@brianredmond4919 3 месяца назад

While fixing things can sometimes be frustrating, always remember its as nothing compared to building one from scratch. 😎

@BuyitFixit 3 месяца назад

Yes, and most things can be fixed.. unlike sheep, most of those repairs seem to end in failure 😂

@mikecass8306 9 месяцев назад

Great fix Mick, another bargain charger for your tools 😀

@BuyitFixit 9 месяцев назад

Thanks Mike👍

@PowerScissor 8 месяцев назад

Just a tip if anybody is interested, there are much cheaper 3rd party chargers on Amazon that have a display built in for pack voltage, charge %, charging current, etc. They are cheaper than Milwaukee ones, never had one fail, and they consistently charge packs that refuse to charge on OEM chargers when certain of Milwaukees own tools always discharge packs below what their chargers will accept. Started using them after I got tired of Milwaukee ones dying for no reason too often, and being overpriced for being "dumb"-ish chargers.

@VolkerLorenz-mj2wm 8 месяцев назад

Good video. Please look for a isolation trasformator like others wrote. And always change the 2 small electrolytic capazitors besides the IC on the heat sink. They are often the cause for semiconductors faults in primary side. These capazitors loose very often the value and changes the esr value too.

@BuyitFixit 8 месяцев назад

Thanks. Yes isolation transformer is on my list. Agree I've changed those bootstrap capacitors in TV PSUs quite often in the past and are often a common issue. This seemed relatively new so I think they will be ok.

@inothome 8 месяцев назад

I have looked for isolation transformers here in Vietnam in person and online and can't find any. So what I did instead is bought a 6A RCD and single DIN box and I use that inline with whatever I am working on. Best I could do and better than nothing. RCDs are ridiculously cheap here too, around $7 USD. Compared to $50 or more in the US for the same exact DIN rail breaker. Fortunately, I haven't actually tested it works well, yet.... Since I have been using it I haven't juiced myself. But, I'd rather an isolation transformer if I could find one.

@andymouse 9 месяцев назад

Awesome...cheers.

@BuyitFixit 9 месяцев назад

Thanks Andymouse 🙂👍

@oldguy8177able 16 дней назад

well done

@BuyitFixit 11 дней назад

Thanks again! 🙂

@faz752 7 месяцев назад

Happy days🤜🤛

@BuyitFixit 7 месяцев назад

Indeed 👍

@Lightrunner. 9 месяцев назад

Fast and charged repair ✌️👍🖖

@BuyitFixit 9 месяцев назад

Thanks 😂😂😂😂👍

@calmauric8218 3 месяца назад

This is very useful. The bridge rectifier in my charger failed spectacularly. But im going to replace that component and try salvage the burnt area

@BuyitFixit 3 месяца назад

Thanks and good luck 👍

@calmauric8218 3 месяца назад

@@BuyitFixit Update. The rectifier got her up and running again. Just the M18 side won't charge now. M12 works fine. Any advice? 😅

@BuyitFixit 3 месяца назад

I'm not so sure on that one, does it flash or anything or is there any voltage on the output? I can't remember if it's one output voltage that is regulated up and down or two separate ones.

@calmauric8218 3 месяца назад

@@BuyitFixit I've got 19.5v, and 10.58v on the DC side, if I slot in a M18 the led goes red as if it's charging for say, 60 seconds. Then it stops charging. No issues on the m12 side. Perhaps I need to desolder and test more individual components? It's almost like the charger is not doing the handshake with the M18 bms

@BuyitFixit 3 месяца назад

I did a bit work on the protocol about 9 month back on reddit. Theres a tx and rx line that go through a couple of transistors and then to the battery terminals. If you have a scope you can see the data..it starts off like a 1010101010101 then a pause then data gets exchanged.

@jeisonsanchez4842 9 месяцев назад

I really enjoyed this repair video. It gives me some ideas on how to troubleshoot an LPS65 power supply. It’s making a clicking noise and only outputting up to 2v every time it clicks. The expected voltage is 24v. Unfortunately, the bottom of the board has a light protective coating that makes it difficult to get a reading on the multimeter.

@BuyitFixit 9 месяцев назад

Bootstrap capacitor? Small electrolytic usually next to the switching IC is a common cause of those symptoms...

@jeisonsanchez4842 8 месяцев назад

@@BuyitFixit Thank you for the hint. I do see two small electrolytic capacitors next to the switching ic on a sub board. The sub board is soldered perpendicular to the main board and the components are hard to reach due to tight spaces. I will still give it a shot when I get a chance.

@solomongainey838 7 месяцев назад

@jeisonsanchez4842 were you able to get it repaired?

@johannohaj5434 6 месяцев назад

Magician

@BuyitFixit 6 месяцев назад

Thanks 👍

@hpd385tannoylover2 7 месяцев назад

Interesting vid and a new sub from me. I have a standard rate charger that has the same prob. Of course, the board is a bit different, but you have given me inspiration to go look.

@BuyitFixit 7 месяцев назад

Thanks 👍If you get stuck with anything feel free to drop me a message 🙂👍

@hpd385tannoylover2 7 месяцев назад

@@BuyitFixit Thanks a lot! Don't expect replies from a lot of tubers.

@BuyitFixit 7 месяцев назад

@@hpd385tannoylover2 I do try to reply to all comments, at sometime in the future that may become too much for me depending on how the channel grows 👍

@hpd385tannoylover2 6 месяцев назад

@@BuyitFixit Double edged sword. I want channels like yours to succeed, as you deserve it, but also I selfishly want you to stay accessible. 🧐

@user1766swl 4 месяца назад

Hi. Use 40W Edison lamp in line for the test start. Safe and no more pcb damage in case off remaining problem.

@BuyitFixit 4 месяца назад

Thanks 👍Yes a couple of people also mentioned a "dim bulb tester" I should really get round to building one.

@michaelbraaten 9 месяцев назад

Also, I heard the clicking of your soldering iron, that is basically what mine does too, so I guess it’s just the way they are lol

@BuyitFixit 9 месяцев назад

Yes, I too heard it on the video that time. It's just the mosfet switching power to the element using PWM.

@dlggamer7014 7 месяцев назад

Connecting a series lamp , u could determine if the input circuit ( before the transformer ) or the output circuit is at fault, its just gonna make your job easier eliminating one part of the board

@BuyitFixit 7 месяцев назад

Thanks for the tip 👍

@michaelbraaten 9 месяцев назад

I have a standard Milwaukee charger that died on me as well, before I was comfortable trying to repair electronics… I don’t remember if I still have it or not, I’ll have to rummage around to see if I do. I prefer the super charger regardless, as I use my Milwaukee tools at work, primarily.

@BuyitFixit 9 месяцев назад

They are pretty similar. The other charger I was experimenting with a few months back was the standard version.

@leonidbreshnew401 5 месяцев назад

To protect Top256 mount a P6KE200A transil diode in parallel with 68K resistor (ZD 12 is shown on the PCB), milwaukee probably planned it on PCB, but then made some savings....

@BuyitFixit 5 месяцев назад

Thanks for that. Much appreciated👍

@mattc3385 9 месяцев назад

You da man.

@BuyitFixit 9 месяцев назад

Thanks Matt 🙂👍

@SanelKeys 9 месяцев назад

I'd suggest you to consider using isolation transformer and series lamp on input, when doing repairs. Less scary.

@BuyitFixit 9 месяцев назад

Yes, I really need to get round to doing that, although it probably wouldn't be as entertaining😂. Thanks for the advice👍

@FraLin 8 месяцев назад

Experienced people can work on live circuits all time without any risk. I repaired TVs before semiconductor took over and it was all live.

@SanelKeys 8 месяцев назад

@@FraLin why doing risky if you can avoid it?

@inothome 8 месяцев назад

@@FraLin LOL, a little cocky are we? No matter your experience, there is always a risk with live circuits. Everyone makes mistakes and having that attitude is what gets "experienced" people killed.

@mag1vl 5 месяцев назад

Hello from Australia 🙃 I also have 1 of these chargers not working (M12-18C) looks the same as the 1 in the video but the inside is quite a bit different and the back of the circuit board is coated with some clear super tuff plastic coating..

@BuyitFixit 5 месяцев назад

Hello from the UK. Yes the 18C (standard charger) is slightly different inside compared to the fast charger. The coating is called conformal coating and is to protect the board from moisture.

@mag1vl 5 месяцев назад

Thanks for the info very cool@@BuyitFixit

@simontay4851 9 месяцев назад

UF308 is an ultra fast 3 amp diode. Looks like its part of the primary snubber network.

@BuyitFixit 9 месяцев назад

Thanks for that Simon 👍

@wurgervomlichtenmoor5073 9 месяцев назад

In single switch flyback converter you have mostly an RCD or Zener diode clamping network over the primary winding to convert the engergy stored in the stray inductance into heat.

@aldenorabrantesfilho4086 7 месяцев назад

i've one blowing fuse as soon as you plug it in....any guess what should i be checking ? great video.

@BuyitFixit 7 месяцев назад

Yes, check the bridge rectifier and the MOVs at near the power input for shorts, next would probably be the switching IC attached to the heatsink. Pretty much the way I started checking this charger.

@TechGorilla1987 9 месяцев назад

GDay, mate!

@BuyitFixit 9 месяцев назад

GDay to you too! 🙂👍

@wisher21uk 8 месяцев назад

Brilliantly fixed yet again Mick, why they cover diodes with glue I don’t know, does nothing to help it cool….I have had power supplies from TVs hold a good charge for a week or so, I found out the hard way hand straight over the the filter caps, my arm hurt for the day 😊 P.s if you need tv boards let me know, is there any other way to contact you ?

@BuyitFixit 8 месяцев назад

Thanks mate, yes I had a bit of a jump with a capacitor the other day (you'll see it on an upcoming video in the next couple of weeks). Yes on the channel about page, there's a button "for business enquiries" which will show the email address (youtube doesn't show it on mobiles for some reason though). Cheers 👍

@wisher21uk 8 месяцев назад

@@BuyitFixit I will have a look thanks ☺️

@wisher21uk 8 месяцев назад

@@BuyitFixit nope nothing there on my ipad 😡lol

@zs1dfr 9 месяцев назад

Thank you for this adventure into deductive reasoning. As a matter of interest, would testing the primary and secondary voltages at that transformer between the "hot" and the "cold" side of the PCB have given you any ancillary information?

@BuyitFixit 9 месяцев назад

I haven't had much success measuring voltages directly at the transformer because it's high frequency AC and the meters don't usually work well with it.

@zs1dfr 8 месяцев назад

Ah, right. Thank you. Some more scales have fallen from mine eyes 🙂@@BuyitFixit

@PowerScissor 8 месяцев назад

I have a pile of brand new looking dead Milwaukee chargers. Never thought people would be paying for them online. Adding up all my chargers that came in kits...its a 10% fail rate with no physical damage (never dropped, yanked, etc)

@BuyitFixit 8 месяцев назад

Yikes, seems a pretty high failure rate. I wonder if it's a design fault or inferior components perhaps.

@rory9174 9 месяцев назад

Brilliant and thanks so much, really enjoyed the search for the fault. I notice you use a flux called Kingbo. Would this flux be comparable to Amtech ?

@BuyitFixit 9 месяцев назад

Thank you 👍Not sure as I've never used Amtech. I just got it from Ebay because it was cheap 😂😂😂 It seems to work OK but I find it a little hard to squeeze out of the syringe as it seems quite thick...

@rory9174 9 месяцев назад

@@BuyitFixit The world is full of fake stuff. I've bought Amtech from 2 different sources and both are fake, they evaporate the second heat is applied. I'll give the kingbo a shot. Looks good from seeing it on your videos. Thanks again.

@BuyitFixit 9 месяцев назад

No problem, glad to help 🙂

@powertoolsrepair 8 месяцев назад

Your videos are great and very informative, but I like your cammera zoon, what cammera are you using fol filming?

@BuyitFixit 8 месяцев назад

It's a sony HDR-CX450 with a third party wired remote. It means I can zoom and start and stop recording without touching the camera which is mounted overhead. I should start putting this info in the video descriptions as I've been asked a few times now 👍 If you have any other questions feel free to ask and I'll try my best to answer 🙂👍

@powertoolsrepair 8 месяцев назад

@@BuyitFixit that cammers zoom is amazing good 🤠 Thank you very much

@BuyitFixit 8 месяцев назад

@@powertoolsrepair you're welcome. They do a 4K version too but it's more expensive. I bought the one I'm using used from Ebay.

@powertoolsrepair 8 месяцев назад

@@BuyitFixit and i gues you repaired it?😁

@BuyitFixit 8 месяцев назад

@powertoolsrepair No lol 😂😂😂 I just bought it used and working. I think I paid around £85 before that I was just using an old iPhone 6 and using digital zoom in the editing software 🙂

@ipaintpro 3 месяца назад

All I can say is why Milwaukee...you have the best tools ever but this....kinda makes me laugh but not bc my charger isn't working and I don't have test light or multimeter ...snif snif lol

@BuyitFixit 3 месяца назад

I've got a quite a lot of Milwaukee tools, some are great, some not so great. I love the M18 Impact driver, and the grinders, never had any problems with those and use them all of the time. Some of the things aren't so great though like the circular saws. They seem to have quite a high failure rate.

@ipaintpro 3 месяца назад

@@BuyitFixit I have the circular saw, reason I needed my charger, which I fixed btw ... I have had no problems whatsoever with it and I have used the crap out of it. I particularly like it as well as my diver bc of the weight. It's so easy for me to work with and neither hesitate. I will always buy Milwaukee...I have the poster of all their tools and dream. I bleed Milwaukee Red! 🥰

@stevewade6438 5 месяцев назад

I've got 2 of these broken . Was it just that diode in the end then ? I may open mine and check that first

@BuyitFixit 5 месяцев назад

Yes, just the diode on this one. Another common problem is the main switching IC.

@jonathaningram4672 9 месяцев назад

Maybe use volt meter for checking.

@smbrob 9 месяцев назад

Great fix, now you can charge away. 🙂

@BuyitFixit 9 месяцев назад

Yes indeed!

@racingblonde 9 месяцев назад

Great video, def not an easy fix

@BuyitFixit 9 месяцев назад

Thanks 👍

@FixthisCD 9 месяцев назад

I have same one that works but it gives a high frequency noise. I don't leave it unsupervised ;)

@BuyitFixit 9 месяцев назад

I've got another one, it sounds pretty much the same too.

@snipersquad100 6 месяцев назад

Why don't you put a 60-watt light bulb in series with the DUT when switching on for the first time after the repair, it won't go bang then if it's still broken.

@BuyitFixit 6 месяцев назад

Good idea, a few people have suggested similar. I don't think I've got any incandescent bulbs.

@cajuncoinhunter 8 месяцев назад

Looks like that diode did it's job protecting it's circuit ...... I have seen a few times that they didn't do it's job and some fet's or IC's like you took out , went up like fireworks ...... Take care Mon Ami ............

@BuyitFixit 8 месяцев назад

Thanks Cajun 👍

@BuyitFixit 8 месяцев назад

Is it really that important? I often make such mistakes, and English might not be everyone's first language.

@cajuncoinhunter 8 месяцев назад

@@Kevin-mp5of I assume you are a teacher of some sort Mr. Kevin This comes from Grammarly and it's or it is in the books so to speak . What does it's mean? It's is a contraction meaning it is or it has. Just like in where's or there's (contractions of where is and there is), the apostrophe signals that two words have been combined. Remember, any time you use it's, you must be able to substitute either it is or it has in the word's place.Nov 9, 2022

@cajuncoinhunter 8 месяцев назад

@@BuyitFixit That's right and anyone can tell that I'm French by the first name of my Channel , it doesn't really matter because I spelled it correctly .....

@diabolo3506 7 месяцев назад

@@Kevin-mp5of "ça" it is not a possessive but a demonstrative pronoun. "sa" its is a possessive. ;)

@gregpetroski6333 6 месяцев назад

I know this is focused in repairing, but I was wondering if you think it would be possible to convert one of these chargers (rapid or the regular slow charger) to run on 12v? For charging in a car without running an inverter? Milwaukee sells one for over $100 but it's slow and it's expensive given they include the normal charger with basically everything. I must have 6 of these by now. Thoughts?

@BuyitFixit 6 месяцев назад

I doubt it. You would need to boost the 12v from the car to the 20v or so that the charger requires, but then also the charger would need to be able to control the voltage and current of that booster. A simpler solution (although with power losses) would be to use a 12v inverter to power the mains charger

@DaytonaJim78 4 месяца назад

How can I make this into a 20v power supply

@kristene2372 7 месяцев назад

Just a heads up when the green light is flashing not finished charging until the light stops flashing

@BuyitFixit 7 месяцев назад

Thanks👍, yes I eventually discovered that on the label on the front 😂

@shanewright6385 6 месяцев назад

Hi can these be easily converted to 12v ? Thanks

@BuyitFixit 6 месяцев назад

If you mean to power them, then no. You could use a small inverter if you want to run it in a car.

@ricardoferreira2811 9 месяцев назад

Hello, have you ever felt the need to have/use a curve tracer for testing zener diodes? Thx

@BuyitFixit 9 месяцев назад

Not heard of one but it sounds interesting...

@whitcwa 8 месяцев назад

A power supply with the proper series resistor is all you need to test zeners. I have a Tektronix curve tracer, but don't use it often. It's great for finding leaky diodes and transistors, but that type of failure is pretty rare with modern components. I also use it to measure the breakdown voltage of parts.

@BuyitFixit 8 месяцев назад

I usually find most semiconductors fail short circuit. Although it did seem that the transistor in the tyre inflator I recently looked at failed open at the B C junction.

@Druidor 7 месяцев назад

Big Red, consumer grade at professional prices, built to fail as soon as the warranty expires.

@raymiller5738 8 месяцев назад

I did the same fault same repair same diode went short circuit... It would appear either a bad batch of diodes or it is underrated?

@BuyitFixit 8 месяцев назад

Interesting, could well be either. I can't remember if the diode I used as a replacement had a slightly higher specification or not.

@marcyd2007 9 месяцев назад

Another awesome fix my friend, well done. I'm not happy with you this time though Mick. While I was watching this one I was little bit mesmerized by it and my kebab went cold before I finished it! and some of my chips! When my wife quizzed me about why I chucked about a third of my dinner away I blamed you, just so you know. Be careful if you ever bump into my wife, ok.... (after she went to bed I had a massive bag of M&M's so I won't waste away)😉

@BuyitFixit 9 месяцев назад

Thanks 👍 and sorry about that. I'll see if I can repair a microwave in a future video which may help with the cold kebab and chips 😂😂😂😂😂😂

@leybraith3561 9 месяцев назад

@@BuyitFixit - AH, soggy reheated chips, Can't Wait.....Alternately, a resurrected Air Fryer and a sprinkling of salt on chips might be a go-er

@BuyitFixit 9 месяцев назад

😂😂😂We've all been there 😂Great idea on the Air fryer. Knowing my luck I'll either get one that works fine or the heating element would be gone 🙂👍

@marcyd2007 8 месяцев назад

Yeh@@BuyitFixit I have to admit I was little bit shocked when you suggested a microwave but an Air Fryer on the other hand @leybraith3561.... I mean people pay a lot of money for double/triple cooked chips in a restaurant so I'm definitely up for that. Let me know when you do it Mick and i'll send you the chips 🙂

@BuyitFixit 8 месяцев назад

@@marcyd2007 😂😂😂Will do Marc 👍

@cliveparkes4052 7 месяцев назад

Why do you remove a fuse to check if it's open circuit it can be done in circuit easily

@BuyitFixit 7 месяцев назад

To show people who may not know how to test a fuse.

@krahwinkel9503 9 месяцев назад

When the M18 is fully charged the LED is flashing while on the 12V side the LED remains steady when the M12 is fully charged - bug or feature ?

@BuyitFixit 9 месяцев назад

No idea! I didn't notice until you pointed it out. My bad it seems. I just checked the front of the charger and it says flashing green is "nearly fully charged" so I guess I jumped the gun on it and thought it was fully charged which is steady green!

@jackrees5325 4 месяца назад

What happens when you put a 12 and 18v battery on charge mine gose into over heat protection not sure of its ment to do one at a time iv not investigated why as it works fine one at a time

@BuyitFixit 4 месяца назад

Weird, I don't think I've had that, but then I'm not sure if I've tried both types of battery at the same time.

@irishlad8797 3 месяца назад

Can someone please tell me what kind of head is on the 5 screws holding the charger together??? Iv tried flat head and Philips head but no go I think they might be trianglular ??? Thanks guys

@BuyitFixit 3 месяца назад

They are security Torx.

@zombieryder 5 месяцев назад

I had a similar problem after replacing diode the charger turned on but when put load on it would collapse.

@BuyitFixit 5 месяцев назад

Not sure on that one. I'd check capacitors etc and try to eliminate if it's on the low or high voltage side.

@zombieryder 5 месяцев назад

@@BuyitFixit all caps are good, replaced a lm358 wasnt giving right values. Im guessing the problem lies at low voltage. Im getting a 12.6v max probing, this is a 21v charger. Im not sure if it would boost up volt when a battery pack is detected. There are too many resistors lazy to check them all. The diode and lm358 was replaced on the low voltage side.

@TheRealBobHickman 7 месяцев назад

Do you specifically look for Milwaukee tools to fix or are they just a lot less reliable than other brands?

@BuyitFixit 7 месяцев назад

I had a few Milwaukee tools and wanted a radio, bought a broken one and fixed it. I then thought I'd get a few other broken tools to try and fix to expand my own collection and thought the videos might be useful to other folks too. If I had dewalt tools or such then you'd probably be seeing a lot of those instead 😂

@TheRealBobHickman 7 месяцев назад

@@BuyitFixit That makes a lot of sense. I guess I won't avoid that brand then ;)

@BuyitFixit 7 месяцев назад

@@TheRealBobHickman I wouldn't recommend the circular saws, as I've seen a few failures. The drills and grinders seem ok.

@Popeyes66 9 месяцев назад

🔌💡👍🍻

@BuyitFixit 9 месяцев назад

Thanks 👍🙂

@LilasTools 7 месяцев назад

My rapid charger works fine but has a loud hiss when charging... i worrycits gonna blow up ever time i use it.

@BuyitFixit 7 месяцев назад

Yes, I've got another one that sounds the same.

@mrvang8077 3 месяца назад

I have that same charger and had only used it twice, then it just sat there for a long time, and it just went dead out of the blue. Makes me wonder if these are just poor quality charger. It's practically brand new.

@BuyitFixit 3 месяца назад

I think you could be right as I've seen a few of these on eBay advertised as faulty that also appear to be in pretty new condition.

@mrvang8077 2 месяца назад

It hasn't even been more than a year. And for it to just died because it was not being use as much is a sign of poor quality components being used. I'm not spending anymore money for a new one when this one I have is practically brand new. Milwaukee need to just give us a new replacement.

@BuyitFixit 2 месяца назад

The standard chargers seem much more reliable than the fast charge versions.

@christophermarshall5765 9 месяцев назад

Bloody pesky diodes!! What fun they can be..... Not. :) Good fix.

@BuyitFixit 9 месяцев назад

Yes pesky indeed! 😂😂😂

@merlin5476 8 месяцев назад

My Milwaukee charger is a model c18c & the 4 pin regulator thats heatsink mounted has blown apart & i dont know the type of regulator it is... any idea what it could be?

@BuyitFixit 8 месяцев назад

Is it only 4 pin? Most of the chargers seem to use a TOP256EN which is 6 pin.

@merlin5476 8 месяцев назад

@@BuyitFixit opps !!!! Just re checked & it is a 6 pin 👍 I shall now and hunt 1 down & keep my fingers crossed. Many thank 👍👍

@BuyitFixit 8 месяцев назад

You're welcome. Glad to help. I'd maybe check other components too such as the bridge rectifier and other diodes just in case they were damaged when the IC shorted.

@NicksStuff 2 месяца назад

17:00 It shows *negative* ohms?

@BuyitFixit 2 месяца назад

Probably charge in a capacitor throwing the reading off. If there was a short, it would still show it on the meter.

@NicksStuff 2 месяца назад

@@BuyitFixit But what is a negative Ohm? Isn't that a bit weird?

@BuyitFixit 2 месяца назад

Yes, I think it works by measuring the voltage it sends across the resistor so if there was a charge of the reverse polarity it would throw it off. It probably does the negative to show you this as if it didn't and just showed 0 you might think it was a short, although alternatively it could Err or something instead.

@NicksStuff 2 месяца назад

@@BuyitFixit I guess that's an issue when the circuit is energized (by mains, a battery or a charged capacitor) but I would have hoped such an expensive multimeter would detect that and throw an error. Because if you swap your leads, you still have a wrong value but no minus sign, don't you?

@stephenbeaumont2184 4 месяца назад

T10 screwdriver

@user-in3xk6nk6x 3 месяца назад

just repairing the milwuakee m12 and m18 charger with input power but no output power what's wrong

@BuyitFixit 3 месяца назад

I'd start by checking the voltage on the capacitors on the output side of the transformer like I did on the video. See if any voltage is present and either work forward if it is, or backward if not.

@user-in3xk6nk6x 3 месяца назад

@@BuyitFixit when i replaced the double diode ,it output voltage intermittently, not enough 11v

@BuyitFixit 3 месяца назад

I'd probably start checking capacitors

@user-in3xk6nk6x 3 месяца назад

@@BuyitFixit i replaced the capacitor and it's still the same i dont known where the problem is