How to be Smarter than a Smart Automatic Car Battery Charger! An easy Trick to Charge a Dead Battery

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Here's some information that may well be helpful if you've ever had to tangle with a modern 'smart' battery charger when charging up a very flat battery!
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Опубликовано:

20 авг 2022

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Комментарии : 869

@TheUltimateRecycler 5 месяцев назад

If you found this video helpful & feel like giving something back to the channel, you can do that here.. www.buymeacoffee.com/theultimat9 All coffees are hugely appreciated and keeping me well caffeinated is likely to bring you many more helpful videos! ☕☕😊😊

@user-ty1ju9do3d 4 месяца назад

Poor engineering causing an unnecessary inconvenience

@mikecastleberry9671 2 месяца назад

Looks fine but))butter

@BitSmythe Месяц назад

@@user-ty1ju9do3d Requiring an existing voltage is how they make the product safer. It prevents sparking when the leads are shorted, applied or removed.

@Errol.C-nz Месяц назад

A tip to use a battery charger for electrolysis.. higher volts are better.. setup your bath filled with WATER & terminal on & switched on .. now add acid (or caustic soda.. it's just an electrolite) till amps rise to a sustainable or desired current (for overnight or like.. gentle jobs).. I use an STC 12/24v early 80s era trickle charger to 10amps g rust explodes off.. caustic doesn't attack base metal steel or galv plating/hot dip 👍

@fsoiberg Месяц назад

Thank you

@stephenm5000 Месяц назад

If this is all RU-vid ever gave me, it was worth it. Sir, you're a friggin' genius!

@TheUltimateRecycler Месяц назад

Haha, thanks Stephen! It wasn't my original idea, but I'm happy to have shared it with you 😊👍

@BlondieSL Месяц назад

@@TheUltimateRecycler I wonder if others realize too, that this is the exact same method that MIGHT work also for charging those batteries for power tools that use Lithuim cells. Sometimes, there's a bad cell (one, two perhaps) that cause the charger to refuse to charge the battery pack. For those who are confident in taking one of those apart (BE SUPER CAREFUL, LITHIUM CAN BE DEADLY) one could find the bad cell(s) with a multimeter and then just "jump" it (or them) with good cells or an adjustable power supply and kick the charger into gear. Been there, done that. It works.

@dimik3855 Месяц назад

I learned of this trick some 10-15 years ago. Just remember to check the fluid levels before you begin charging, since it's a lead acid battery. This wake up technique also works with Ni-cads and Li-ion batteries as well.

@TheUltimateRecycler Месяц назад

Thanks and good advice with the fluid levels 😊👍

@user-kb6hd8qm2j 3 месяца назад

Absolute genius. No more frustration and my battery got charged. Thank you

@TheUltimateRecycler 2 месяца назад

Excellent, that's great to hear Randy! 😊👍

@user-dc2ot2tj2b Месяц назад

Yoy are welcome but do you know how to build it?

@MrHellfinger 20 дней назад

Had this happen a lot and I just grabbed a spare 12v battery to get the charge cycle started. The 9v battery is a brilliant idea. A cool mod to the charger would be to put a battery inside with a momentary switch labelled 'dead battery kick start' (or something better lol).

@TheUltimateRecycler 17 дней назад

Yep, it wouldn't be hard to do that mod. I believe many smart chargers have an override switch now.

@dienekes4364 Месяц назад

You can also add a diode to the 9v to allow power to the charger but not worry about not leaving it on too long.

@TheUltimateRecycler Месяц назад

Yes, great thought! 😊👍

@davidhenderson3400 Месяц назад

Makes you wonder how many perfectly good battery chargers go in the trash each day because people simply do not know. This is when reading the instructions that come with the battery charger come in handy

@TheUltimateRecycler 27 дней назад

Yes, it seems many have been thrown out! Since most don't read instructions, maybe there needs to be a large sticker on the charger to explain that it's different to the old style!

@davidhenderson3400 27 дней назад

@@TheUltimateRecycler And why would they read that?

@TheUltimateRecycler 27 дней назад

@@davidhenderson3400 Because the sticker would start with "Free beer.." 😂😂

@erichfeit7779 Год назад

Thank you very much. I'm an old experienced handy man with no smart charger experience. You have taught me a lot! Very clever demonstration! Thank you again! Erich in New Zealand ☺️

@TheUltimateRecycler Год назад

Thank you Erich, glad my content has been helpful! 😊👍

@dienekes4364 Месяц назад

I have a Dodge Journey that has 2 12v Aux ports, one that should only turn on when the car is on and one that is always on. The switched port stopped working, so I plugged my cell signal booster and dashcam into the always-on port. Unfortunately, I didn't drive the car for a few days and it drained the battery. I have one of these "smart chargers" and it refused to charge the battery, with a msg "battery fault". Once I jump-started the car with my truck, the battery charged right up. Gotta love how they "make things better" by completely screwing them up.

@TheUltimateRecycler Месяц назад

Haha, yep and they call it "progress"!! 🤣🤣

@daveblevins3322 21 день назад

"Smart chargers" were a stupid invention. Some things should just be left alone.

@taylorballsdtb 5 месяцев назад

Brilliant! Just the information I needed. Bought a smart charger and the instructions were woeful. Got error message but didn't know why. Now I do. Cheers buddy.

@TheUltimateRecycler 5 месяцев назад

Thanks Dean. Yes, many instructions are woeful these days! Cheers 😊👍

@kelvinfunkner Месяц назад

This was amazing...only wish I'd seen it before I threw out my old Genius smart charger and bought a new one.. (it was behaving the same way) Thanks for sharing this information!

@TheUltimateRecycler Месяц назад

Thanks Kelvin. I wonder how many perfectly fine chargers went into the bin?

@user-xk3jz7tx8m 5 месяцев назад

Fantastic video. I had same issue with my generator battery. I hooked up my BATTERY TENDER & it wouldn’t charge. Checked voltage, only had 3.2 volts. Put the 9 volt inline & instantly recognized it and started charging!! Showing 12.5 now within 1 minute. Glad I found your video. Thanks

@TheUltimateRecycler 5 месяцев назад

That's awesome Stephen! Well done. Thanks for watching 😊👍

@PaulAdame 3 месяца назад

I was at ends wit and I am so grateful I stumbled upon your video. This trick worked like a charm. Thank you very much for the thorough explanation because I have no experience with any electrical components!!! Paul from El Paso, Texas.

@TheUltimateRecycler 3 месяца назад

That's excellent Paul, I'm glad the video was helpful! Thanks for watching 😊👍

@jamesdie-castdilemma7837 Год назад

Thank you for this awesome trick, i used a 12v drill battery for mine and it did the job great. I will be keeping this one in the books!

@TheUltimateRecycler Год назад

Excellent James, glad you found the video useful! 👍😊

@km-gi4lw Месяц назад

That's a Big Trick simplified by your explanation over the top of the presentation. Many people have done this type before yet never convinced me as you have . This will be great for the squillion power tool batteries in the world . Thank you , much appreciated .

@TheUltimateRecycler Месяц назад

Thanks for watching and your excellent comment KM!

@ronchappel4812 5 месяцев назад

Thanks! I partly knew these things but you filled in the important details😀

@TheUltimateRecycler 5 месяцев назад

Great! Thanks for watching Ron! 😊👍

@waltp3373 Год назад

Great idea. I have an old dumb charger with just a transformer and rectifier. That will work on a totally dead battery. It may pop the breaker a few times due to the surge but will eventually charge the battery. It brought my battery back from the grave and it's still working fine years later. Sometimes I hate new technology. They outsmart themselves and make life difficult.

@TheUltimateRecycler Год назад

Thanks mate. Yeah technology is just too clever for itself sometimes! 🙄

@robertmencl9169 Год назад

I cant find an old dumb charger, new or used! My new computer controlled charger is incredibly fast at charging a good battery, but will not charge a dead batyery, which is basically when I really need it!

@evanstauffer4470 Месяц назад

I do the same thing with my dumb charger. The 9V battery trick will come in handy if one does not have a dumb charger or spare battery handy.

@orionbetelgeuse1937 Месяц назад

@@TheUltimateRecycler well, you have misunderstood the point of this behavior. They made it like this because not so smart people might let the clamps on the table and make short circuit that might lead to fires. Sure, there are simple circuits which might be used to limit the current but the charger will still overheat if left in this state for long time. The solution to start the charger only if it has a few volts between the leads is a simple one.

@colinsmith911 Год назад

Wish I'd seen this before giving up on my smart charger and buying a "proper" charger. Great little video

@TheUltimateRecycler Год назад

Thanks Colin! 😊

@mattwaters6987 3 месяца назад

Glad i came across your video. Excellent information. Thank you!

@TheUltimateRecycler 3 месяца назад

Thanks Matt! 😊👍

@ec9156 Месяц назад

Did this with my battery tender 4amp "smart" Dual regular & Lithium charger & your regular 9 volt battery hack by just tapping 5x's the connection for one second each tap, Battery Tender recognized the dead "Lithium" 12 volt motorcycle battery and within 5 seconds was charging. Brilliant, & Cheers, Eric from NC-USA.

@TheUltimateRecycler Месяц назад

That's excellent Eric! Thanks for watching and sharing your success 😊👍

@Ridethebomb777 Год назад

Excellent tip. I have had the same problem, and to solve it I hooked up my booster pack 3 times for 20 seconds .... pushes a very low level of charge into the battery, but enough that my "smart" charger can recognize and start its cycle.

@TheUltimateRecycler Год назад

That's another way to kick start things, yep. Thanks for watching 😊👍

@aurumbeach 3 месяца назад

Great idea. Way easier than finding another good car battery to kick it off to charge. Thanks

@TheUltimateRecycler 3 месяца назад

Thanks for watching! 😊👍

@Scooter30FTW Месяц назад

This will come in handy some day. Wish I had one of those old heavy battery chargers.

@TheUltimateRecycler Месяц назад

I have a few floating around - I usually sell then in the shop for $20 - $30

@jjames5475 Месяц назад

Wow Sir ..!! Very Smart . Ingenious. Thank You for this Video 🙏

@TheUltimateRecycler Месяц назад

Thanks heaps for watching 👍😀

@coegj Год назад

Oh my I wish I had seen this a month ago, my neighbor just went through this on her two year old 12 volt lawn tractor mower battery. I tried to charge her battery and nothing happened, so she bought a new battery, if only I had known about this, of course the dealer said nothing and just sold her a new battery. Great video and I will pass it around to people I know, thank you for showing this.

@TheUltimateRecycler Год назад

Many thanks! Yeah, some dealers just want sales without actually being helpful!!

@mvd4436 2 месяца назад

Just think of all the good batteries that have been thrown out thanks to these very questionably designed "smart" chargers

@chrisdaniel1339 2 месяца назад

Worked perfectly! Thank you for posting

@TheUltimateRecycler 2 месяца назад

Thanks Chris, that's great! 👍😊

@jraymond3218 5 месяцев назад

Thank you for the video. Much more informative than other videos I,ve seen.

@TheUltimateRecycler 5 месяцев назад

Glad you enjoyed it! Thanks 👍😊

@Nas_Atlas Год назад

Oh that's so nice. Much simpler than the other ways to deal with that problem.

@TheUltimateRecycler Год назад

Thanks NA 👍

@chubbyjohnson5480 Год назад

Excellent video, sir! Thank you for the information.

@TheUltimateRecycler Год назад

Thanks Chubby! 😊👍

@andrewpeters8002 Год назад

Brilliant! Thanks so much for posting this very useful video :)

@TheUltimateRecycler Год назад

Thanks Andrew! 👍😊

@qblinden21 Год назад

Brilliant! Thank you for sharing this information.

@TheUltimateRecycler Год назад

Thanks for watching! 😊👍

@longship789 Год назад

Nice tip thanks Chris. I have a 12V charger but haven't had call to use it in ages.

@TheUltimateRecycler Год назад

Thanks Longship. No flat batteries is a good thing! 😊

@krishnanandikes8790 2 месяца назад

Excellent video. Thank you so much for this.

@TheUltimateRecycler 2 месяца назад

Thanks Krishna 👍😊

@neilfoster814 Месяц назад

Wow, how useful! I have a so called "smart charger", and same as this one, 0 volts as a power supply, a flat battery also gives 0v. Definitely going to try this hack. Thanks for the information.

@TheUltimateRecycler Месяц назад

Thanks for watching Neil! It should work fine 👍😊

@molinkie Месяц назад

Very clever! I just had a similar experience with a smart charger I own and a vehicle sitting unused for a few months. Fortunately, I have a second charger with a "jump charge" function that got the vehicle battery past the smart charger's "start volt" threshold. I knew what you would do as soon as I noticed the 9V battery and clip leads in the background. I'll remember that!

@TheUltimateRecycler Месяц назад

Yeah I believe some chargers now have an override switch which is sensible! Thanks for watching 😊👍

@meerennarain5286 Год назад

Just worked for me🙏thank you for the advice

@TheUltimateRecycler Год назад

Fantastic Meeren, that's great to hear 😊

@RetifsGarage Год назад

Thanks for the tip, I have a dumb and a smart one and I was using the dumb one when the smart one wasn’t willing to, now I learned how to trick it ! Cheers

@TheUltimateRecycler Год назад

Thanks Retif - we need to stay smarter than our equipment! 🤣

@dfabeagle718 Месяц назад

Good info! I've put a "wall wart" 12v power supply on a car battery for a couple of hours before to put enough into it for the new charger to turn on. Technically, I guess if you have a few days to wait, that same wall wart would charge the battery at a steaming 500mA - 1A. If I cared enough or had enough time, hunting down a floating charge circuit would probably make it a useful thing to keep hooked up. The battery maintainer chargers are like that, but I'm too lazy to hook one of those up. Lead acid batteries are pretty much a rental item here in the States. They build them to last almost exactly what the warranty is, and if it ever froze discharged, it seems like pretty much game over for that battery no matter what you try.

@TheUltimateRecycler Месяц назад

We don't have issues with freezing here, but I've wondered how that effects a lead-acid battery! 🤔 Yes, manufacturers of all kinds have pretty much mastered the skill of making something that just makes end of warranty period 🙄

@tonyval4135 Год назад

Thanks for posting, great explanation.

@TheUltimateRecycler Год назад

Thanks for watching Tony! 😊👍

@philstreeter9703 Месяц назад

Amazing video. Thanks for sharing. I've hooked another battery to the dead battery and left it for a day.

@TheUltimateRecycler Месяц назад

Thanks Phil! 😊👍

@Dee.C Год назад

Very good information . Thank you !

@TheUltimateRecycler Год назад

Thanks Dee 👍😊

@wjp255 Месяц назад

Thank you sir! I learned something today. It will come in handy.

@TheUltimateRecycler Месяц назад

That's great! Thanks for watching 😊👍

@gregoryboyk2612 2 месяца назад

That's a fine solution. I was thinking in series, i was wrong. Thanks.

@TheUltimateRecycler 2 месяца назад

Thanks for watching mate! 😊👍

@briansmith7665 Месяц назад

Very helpful . Thank you 👍

@TheUltimateRecycler Месяц назад

Thanks Brian 👍😊

@tommywilliams3321 Год назад

God bless you brother I needed this. Helps a lot.

@TheUltimateRecycler Год назад

Thanks Tommy, pleased to be of assistance! 😊👍

@VoteBlueNov.2024 Месяц назад

Great info. Great explanation of whats really going on in that things brain. Thanks for that mate.

@TheUltimateRecycler Месяц назад

Thanks for watching! 😊👍

@corvus1238 Месяц назад

Thank you. Really useful information.

@TheUltimateRecycler Месяц назад

Thanks for watching! 👍😊

@richardmartin3127 Месяц назад

Excellent presentation thank you team.

@TheUltimateRecycler Месяц назад

Thanks Richard! 👍😊

@jerryc7016 Месяц назад

Awesome information. I tossed out a few SLA batteries that my smart charger would not charge. Will try this fix next time. 👍

@TheUltimateRecycler Месяц назад

Thanks Jerry! No sense throwing out things we don't have to! 😊

@keithtanner2806 Месяц назад

Fascinating, I had exactly that yesterday when my daughter left an interior light on in her car flattening the battery. I was about to return the nearly new smart charger!

@TheUltimateRecycler Месяц назад

Timing is everything Keith! Glad I was able to help 😊👍

@airzillarocks 11 месяцев назад

Worked excellent for my Viking 4 Amp Fully Automatic Microprocessor-Controlled Battery Charger/Maintainer, thanks for posting... \m/

@TheUltimateRecycler 11 месяцев назад

Excellent! Thanks for watching 😃

@dporrasxtremeLS3 8 месяцев назад

Outstanding! I have a few of these and won't give them away! 2 thumbs UP!!!

@TheUltimateRecycler 8 месяцев назад

Many thanks Davil! 👍👍😊

@grominwithrob1339 Месяц назад

I used this trick a few weeks back to get my "smart" trickle charger to start charging on one of my seldom used motorcycles. Worked great and now my smart charger is keeping a maintenance charge on the battery.

@TheUltimateRecycler Месяц назад

Excellent! Thanks for watching Rob 👍

@jonwikan3986 5 месяцев назад

Awesome trick! I was going to find a good car battery and hook up leads to trick mine. I thought about using a 9v but thought it would fail, Thanks for the tip.

@TheUltimateRecycler 5 месяцев назад

No worries Jon, glad you found the video useful! 👍😊

@thm3525 29 дней назад

I just had this issue yesterday. Good information to know now. Thanks

@TheUltimateRecycler 27 дней назад

Excellent! Thanks for watching 😊👍

@JacknVictor Год назад

Cheers mate. I will be able to get ny "legs" back in operational order with this trick! Thank you

@TheUltimateRecycler Год назад

That's great mate! 👍😊

@OGRH Месяц назад

Thanks dude. You are a global treasure!

@TheUltimateRecycler Месяц назад

Ah, thanks mate! 😀👍🤣

@luckygen1001 Год назад

Excellent video, love this style of videos from you. I am going to make a similar video about reviving lithium batteries and how the chargers reject those batteries.

@TheUltimateRecycler Год назад

Thanks Lucky! Awesome - I'll keep an eye out for that! 😊

@leoshearbanshearbands2594 6 месяцев назад

Thank you for that video bro that's awesome I had a brand new battery that was dead and I did that little battery thing it works great I love that thanks a lot for the insight it was great

@TheUltimateRecycler 6 месяцев назад

Fantastic! Thanks for watching Leo 👍😊

@junebrooks665 Месяц назад

A great lesson many thanks

@TheUltimateRecycler Месяц назад

Thanks June 😊👍

@rayowens4355 23 дня назад

Good info! Thanks for sharing!

@TheUltimateRecycler 21 день назад

Thanks Ray! Thanks for watching 👍😊

@quirkygenius 11 месяцев назад

Great idea! Tried it and it works. It's "insane" why they do this, the shock from a 12v isn't that high. . and HOW would you charge a "dead" battery. I made a set of alligator clips and 9v to throw in my CenTech Harbor Freight charger.

@TheUltimateRecycler 11 месяцев назад

Thanks mate. Who knows why they do half the stuff they do! Thanks for watching 😊

@thebluelunarmonkey 8 месяцев назад

The HF Cen-tech charge needs to see 7V before it will charge. There is a hack where you solder a switch inside to 2 solder joints to bypass the anti-short safety feature and get it started. This is only "old style charger" I have found that is still on the market. Too bad it has the 7V safety feature.

@davidsmith2650 9 месяцев назад

Excellent hack ! Thank you.

@TheUltimateRecycler 9 месяцев назад

Many thanks David! 👍😊

@user-ny2bx8ez1c 11 месяцев назад

I learned something today, Thanks

@TheUltimateRecycler 11 месяцев назад

Thanks for watching! 😊

@davewalls752 Месяц назад

Excellent tip much obliged.

@TheUltimateRecycler Месяц назад

Thanks Dave! 😊👍

@GK-sh7ck Месяц назад

Needed to be "excited" to begin charging. Reminds me of the days when generators were installed in everything.

@TheUltimateRecycler Месяц назад

Ah, those were the days! Thanks for watching Grampa Garry! 👍😀

@ASCOAL 9 месяцев назад

Great idea thank you!

@TheUltimateRecycler 9 месяцев назад

Thanks Paul! 👍😊

@tekope9510 Месяц назад

Omg, it worked flawlessly!!

@TheUltimateRecycler Месяц назад

Excellent! Great to hear! 👍😊

@jimdeavenport9952 Месяц назад

Im glad I came across your video. It just so happens I have a "Smart" charger that has no output voltage. I will try and re-train it like you did. Will let all kmow how it works out.

@TheUltimateRecycler Месяц назад

Perfect! Hope it works for you Jim! 👍😊

@andythomas7931 Месяц назад

Wow thank you I didn't know this! I have shared your link on my fb page

@TheUltimateRecycler Месяц назад

Many thanks Andy, that's awesome! 👍😊

@dgenr88 Месяц назад

Yes I thought my same charger was stuffed too. ,thanks very much for this info ,I learnt something today 👍

@TheUltimateRecycler Месяц назад

Excellent! Glad to help 👍😊

@truthquest4791 2 месяца назад

Absolutely wicked mate.

@TheUltimateRecycler 2 месяца назад

Haha, thanks mate! 😊👍

@brianrydzeski6108 Месяц назад

Thanks for sharing this.

@TheUltimateRecycler Месяц назад

Thanks for watching Brian 😃👍

@welshhomestead 11 дней назад

Very clever. Thank you.

@TheUltimateRecycler 7 дней назад

Many thanks for watching 😊👍

@redbeacon4871 3 месяца назад

Thank you ! Glad I found your video ,before I took my dumb/smart charger apart

@TheUltimateRecycler 3 месяца назад

Excellent, I'm glad I was able to help! 👍😊

@hmmhmm4967 2 месяца назад

Waw, its like 'jump starting the battery charger with a 9 volt battery'; brilliant hack, thanks 🙏

@TheUltimateRecycler 2 месяца назад

Exactly! Thanks for watching 😊👍

@mikerequa820 Месяц назад

Great video young man!! I bought a new battery charger it would charger a dead battery either I will try this. Thanks for sharing be safe have fun

@TheUltimateRecycler Месяц назад

Thank you Mike! Appreciate you watching! 😊👍

@mcconnell51420 28 дней назад

Excellent video sir hope it helps many people.

@TheUltimateRecycler 27 дней назад

Many thanks Stephen! 😊👍

@wroungturn1 5 месяцев назад

Thanks that's great information

@TheUltimateRecycler 5 месяцев назад

Thanks, glad it was helpful! 😃

@truthinvestment8962 8 месяцев назад

Thanks buddy, awesome.

@TheUltimateRecycler 8 месяцев назад

Thanks Simon! 👍😊

@Tooligan2021helloyouTooligans Год назад

Great video, see so many people trying this with huge batteries or daisy chaining them no need it just needs to feel something to kick in.

@TheUltimateRecycler 11 месяцев назад

Exactly! No sense dragging around heavy batteries if you don't have to!

@jeremiahbf117 Год назад

Well, that is handy information. Thanks.

@TheUltimateRecycler Год назад

Thanks mate 👍😊

@jdwisdom9433 Год назад

Hoss, ya just saved my bacon!! I have a large and small battery charger that won't do diddily squat to to the many so called "dead" batteries I have, but now I know what to do!! Thanks a Bundle!! JD

@TheUltimateRecycler Год назад

Pleased to have helped JD! Bring those dead babies back to life! 👍😁

@michaeltb1358 11 месяцев назад

Great video! I have a smart charger and an older transformer charger which has some degree of automatic charge level. The old one should switch to trickle automatically but stopped doing that. I have a battery which has given strange problems. Below around 12 volts it sometimes just disappears. The smart charger will not work. Using the other charger wakes the battery so the smart charger will work. My smart charger is relatively clever. It goes through a series of different charging modes depending on the state of the battery, reverting to a standby mode when the battery is full.

@TheUltimateRecycler 11 месяцев назад

Thanks Michael, sound like you have your charging pretty much sorted 👍

@rjcote45 Год назад

Excellent! Thank you very much for a quick-ish (could be more terse), effective and informative demonstration. I've wondered of late exactly about using a battery "jumper" and if needs to stay on for the entire charging duration or just long enough to momentarily satisfy the "smart-charger's" test threshold. People always want to call that "fooling the system" . Uggh! Anyway, there are so many bad videos that are verbose, circular, unfocused, rambling, incorrect technically and/or "muddy", overly long and rather boring and/or stupid. Your video shines like a beacon in the galaxy ... to paraphrase Forbidden Planet! Seriously, I cannot thank you enough!

@TheUltimateRecycler Год назад

Man, that comment rates well into the top ten of the best & most complimentary I've received! Many thanks from one beacon to another! 😍👍

@waltp3373 Год назад

Forbidden Planet was my favorite old time SciFi movie. What has that got to do with battery chargers? Absolutely nothing.

@robertmencl9169 Год назад

I am doing a hybrid battery right now...your question of leave the jumping battery on through the charge is important. when I use another car battery to bring them up to where the "smart" charger charger will latch on, I just flash it for a few seconds. I have a voltmeter clipped on the dead cell, and can immediately see when the charger kicks in and starts climbing, thats when you can disconnect the good battery.

@oscarsalinas5431 10 месяцев назад

@de_pin5835 Месяц назад

Brilliant. This probably applies to power tool battery chargers

@TheUltimateRecycler Месяц назад

Thanks. Yep, any modern 'smart' charger I guess 👍😊

@spawn1086 Месяц назад

Good video, the only thing forgotten is always remove caps so pressure doesn't build up, fluid level helps too.

@TheUltimateRecycler Месяц назад

Yep, good point! Thanks for watching 😊👍

@andywright2606 Месяц назад

Good video mate, excellent work convincing the "smart" charger there is actually a battery connected. Cheers 👍

@TheUltimateRecycler Месяц назад

Thanks Andy, appreciate you watching and the comment 👍😀

@lithgowlights859 Месяц назад

Some chargers have a boost or low voltage button that pretty much does this, but the 9V battery is ideal as its something that many people will have. Give it a good charge and then a run on a good reconditioning charger to help desulfate it and it will be a good spare

@BlondieSL Месяц назад

I have one of those Honda desulfating chargers and it works rather well. I tests the battery to decide its condition, then will either charge it up and maintain, or will charge, then go into desulfate mode, then charge and maintain. Works well. When I had my solar panels set up, I had a stand-alone desulfator across the entire bank. I used 6 deep cycle lead acid batteries and got about 12 years out of them!

@TheUltimateRecycler Месяц назад

Yes I believe that some have an override button which is a good idea. Reconditioning chargers are great for getting the best life from a battery. The one I used had a crook cell though - but it was a good example for the video. It ended up going to the scrapyard!

@carlfritz9496 2 месяца назад

Great video - simple solution to use the 9V battery.

@TheUltimateRecycler Месяц назад

Thanks Carl! 👍😊

@teardowndan5364 Месяц назад

Many jumper packs have a safety override to get around the dead-flat battery issue. Smart chargers need one too. You can probably add one by wiring a 100 ohms resistor in series with a momentary switch across whatever isolates the output.

@TheUltimateRecycler Месяц назад

I believe many smart chargers now have an override, which is sensible! Thanks for watching 😊👍

@lesallison9047 Год назад

Very interesting Chris 👍. Who would have thought these 'smart chargers' are a bit bit stupid sometimes! ✌♥️🇬🇧

@TheUltimateRecycler Год назад

Technology and smart don't always go together Les!🤣

@lesallison9047 Год назад

@@TheUltimateRecycler To be honest Chris anything with a 'smart' before always makes me dubious, in England we have now got smart motorways, they changed the hard shoulder (break down lane) into a traffic lane so they could get more cars down them faster. But if someone breaks down!!! They are death traps, there have been quite a few major pile ups. Anyway glad you're back without the heavy deadline, it was stressing me out mate 🤣😂🤣 Enjoying your more relaxing fixing things show and I can't wait for your unboxing of all your treasures in the future. Take care mate. ✌♥️🇬🇧

@jerrymont2595 Месяц назад

Makes sense ! Thanks !

@TheUltimateRecycler Месяц назад

Thanks Jerry! 😊👍

@chuckvoss9344 11 месяцев назад

Thanks for the info..

@TheUltimateRecycler 11 месяцев назад

You're welcome! Thanks for watching! 😊👍

@MitzvosGolem1 Месяц назад

Excellent 👍 thank you

@TheUltimateRecycler Месяц назад

Thank you too! 😊👍

@davidgentz1731 Месяц назад

Great tip thank you

@TheUltimateRecycler Месяц назад

No worries, thanks David 😊👍

@GavinM47 Месяц назад

Thank you Sir, I've been sat scratching my head wondering why my new 'smart charger' isn't working!!

@TheUltimateRecycler Месяц назад

Yep, I initially had the same itch! Thanks for watching Gavin 😊😊

@SloMo-rk5pv 20 дней назад

That's pure gold! 👌

@TheUltimateRecycler 19 дней назад

Thanks! 😊😊

@FoulOwl2112 9 месяцев назад

Worked great! BTW he's also right about it not even taking 9v. I just happened to have a 5.5v wall wart I'd previously soldered test leads too for electroplating on hand. So l tried that 1st. Worked fine...

@TheUltimateRecycler 8 месяцев назад

That's great! Yeah - it doesn't need much to kick the charger into gear! 👍

@davidhenderson3400 Месяц назад

Actually most such charging systems a kick on as low as 4 volts.

@afineliner740 Год назад

Ha ha, yes it's always better to make friends. I have an old style charger but if I come across a smart one I now know how to deal with it, thanks Chris. 👍

@TheUltimateRecycler Год назад

Friends are much better than enemies AF - especially with electrical items! 🤣