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DIY Tech & Repairs
DIY Tech & Repairs
DIY Tech & Repairs
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The new DIY and tech channel. Currently mainly tied into 18650 batteries and renewable energy from solar.

But its so much more! Tools, reviews, Locost build and car repairs. I also do stuff on request!

For reviews: Send me a PM and il send you address. All reviews are done fair and square and If i think the product is worth the time i also make the review!



Check out my articles on diytechandrepairs.nu (Pending rewamp so will come back in short)


Also dont forget my Patreon (www.patreon.com/diytech)
or if you like more direct-style you can always Paypal me at paypal@romer.se or www.paypal.me/diytechandrepairs


Let us build up this channel to something big and independent. Its time to get this going! Let us all learn new stuff
DIYBMS V4.2 - Intro
6:01
3 года назад
3D printed RGB vase LIGHT
18:30
3 года назад
Ultimate cabinet with 3D printed boxes
26:32
3 года назад
DIYBMS - How to order and build it
27:30
3 года назад
Ender 6 - A new 3D printer to my place
20:05
3 года назад
DIY Youtube camera and light builds
10:47
4 года назад
Solar Update 2019 December
5:32
4 года назад
Mailbag 2019 #1 - Must have stuff
14:36
4 года назад
Raspberry PI HW build #2 - Poe HAT
10:44
4 года назад
Transylvania trail camp 2019 - Romania
30:34
4 года назад
Solar powerwall update - 2019
5:51
5 лет назад
Комментарии
@samehdarawshi3537
@samehdarawshi3537 10 часов назад
Any success spotwelding tesla 21700 cell?
@ifyoubuildit6077
@ifyoubuildit6077 8 дней назад
@DIY Tech & Repairs Have you found an ATS that works for the solar inverter? Has anyone?
@DIYTechRepairs
@DIYTechRepairs 8 дней назад
@@ifyoubuildit6077 Schneider and ABB have plenty
@gavin9873
@gavin9873 9 дней назад
How come nothing happend..as soon as I touch negative and positive together accidentally I get sparks immediately
@alymilant3570
@alymilant3570 12 дней назад
If I replace the solar to generator is it going to work?
@DIYTechRepairs
@DIYTechRepairs 12 дней назад
@@alymilant3570 should
@yuvarajblackpearl
@yuvarajblackpearl 12 дней назад
will it work for esp32 ?
@DIYTechRepairs
@DIYTechRepairs 11 дней назад
@@yuvarajblackpearl could work.
@dhananjaykadam2786
@dhananjaykadam2786 21 день назад
Thanks for nice tips. Please inform what size of inside spring you are using? Dia, no. Of turns & length. Regards
@underhover69
@underhover69 25 дней назад
You saved my life, thank you
@Dtr146
@Dtr146 27 дней назад
The problem with this is. The medium that's shorting out the battery needs to be able to withstand the buildup of heat in the battery. If you're using the stranded wire. You need to make sure that it continuously keeps a good connection. If you're using nickel strip you got to make sure the way you attached it and then they will strip itself can handle the heat. But the easiest way to short out a . It is too short out the positive contact with the case of the battery. The shorter length of whatever you're using would provide least resistance and let the battery get hotter
@harleydiaz.
@harleydiaz. Месяц назад
Does this work on Chargers and headphones too
@DIYTechRepairs
@DIYTechRepairs Месяц назад
Yes. You can soften most rubber and plastic with heat
@henryjones8614
@henryjones8614 Месяц назад
Just an observation, not knowing the exact product number, but assuming 4 Ah per cell: I count 180 cells from your video. Considering it requires 4 cells in series to get 12.8 v, then paralleling the 45 series groups yields 180 Ah capacity theoretically. Not a detracting observation to your well presented info.
@DIYTechRepairs
@DIYTechRepairs Месяц назад
It's lfp cells. Their max st 18650 form factor is alot less. I said 130 in the beginning :)
@duymelody3531
@duymelody3531 Месяц назад
Can it control the inverter? I want to change SUB - SBU mode remotely
@DIYTechRepairs
@DIYTechRepairs Месяц назад
Yes I can that
@duymelody3531
@duymelody3531 27 дней назад
@@DIYTechRepairs I have done what you instructed, then I can see where the result is
@TuanTran-ir6yr
@TuanTran-ir6yr Месяц назад
hello
@CharlesGwinn-ep9pb
@CharlesGwinn-ep9pb Месяц назад
Ive been saving to buy the digital version(MOES) with much shorter delay time than this mechanical one.Will Prowse has vids. demonstrating running computers and (I believe) even a window AC. Rated for 100k switches!...but this mechanical one ....IDK.
@DIYTechRepairs
@DIYTechRepairs Месяц назад
I run it with computers. It's 10ms switch time that is good enough. We need mechanical here to get it approved.
@SynthToshi
@SynthToshi Месяц назад
what would one use for a server solar setup no battery?
@DIYTechRepairs
@DIYTechRepairs Месяц назад
Grid? You need either grid or battery. Can't use solar only since the sun goes down or behind clouds.
@SynthToshi
@SynthToshi Месяц назад
@@DIYTechRepairs trying to do a grid with solar switch, just cant have a delay.
@DIYTechRepairs
@DIYTechRepairs Месяц назад
@@SynthToshi no you do grid tie where the appliance use the grid and then the solar sell back to grid. As said you can't or more should not run on only solar because solar need a backbone lite battery or grid
@SynthToshi
@SynthToshi Месяц назад
@@DIYTechRepairs so what solution are there for a switch for servers.
@DIYTechRepairs
@DIYTechRepairs Месяц назад
@@SynthToshi any ats or powers powerswitch. Like from apc
@bartv6387
@bartv6387 Месяц назад
Took me year and a half to find that wire. Could find just one seller in England
@michalknapek5697
@michalknapek5697 Месяц назад
One thing is not clear for me. I have already setup circuit with breakers and everything. How I can switch those for different output eg solar power when both of them are active at the same time?
@DIYTechRepairs
@DIYTechRepairs Месяц назад
you cant have both inputs active at same time to same output unless they are made for it. An ATS switches source to the output and is often connected befre for instance a breaker panel feeding it
@mrWhite81
@mrWhite81 Месяц назад
What was the ambient temperature?
@DIYTechRepairs
@DIYTechRepairs Месяц назад
Dont remember now but between 15-20c i would guess
@offgriddreaming5403
@offgriddreaming5403 Месяц назад
Hey mate Are you still using batrium? I still have the watchmon 1 kit like this one and thinking of setting it up again.
@DIYTechRepairs
@DIYTechRepairs Месяц назад
No. I scrapped it years ago in favor for diy bms. It have worked so much better and the fact that it's open source and pretty cheap :)
@jackalpha8844
@jackalpha8844 Месяц назад
I have a question, will it be soft like for a long time or it will be harden after it cool down
@DIYTechRepairs
@DIYTechRepairs Месяц назад
It will stay soft for a while. It's not permanent but still
@khaledabdoqaedal-sami5274
@khaledabdoqaedal-sami5274 Месяц назад
Peace be upon you. Is it possible to activate the translation into Arabic?
@marykowalewski6639
@marykowalewski6639 Месяц назад
Thanks Mr. Swedish Man. I'm connecting mine up backwards as I want My solar input system as primary. Thank you Good Job. Gus
@thischannelisretired123
@thischannelisretired123 Месяц назад
Whats that charging device you are using called?
@DIYTechRepairs
@DIYTechRepairs Месяц назад
dps device. Like this: www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=dps5020&_sacat=0&mkcid=1&mkrid=711-53200-19255-0&siteid=0&campid=5338074051&toolid=11800&mkevt=1
@anthonyk9834
@anthonyk9834 Месяц назад
Have you ever had overheating with this chip? My board looks exactly the same, but there's a notorious overheating issue that seems to be occurring with these boards recently which may be related to a cheap Chinese supplier. I have been trying to get my TTL<->RS232 connection to work with a firewall console cable -- almost the same as your setup -- except I'm using RJ45 pins 3,5,6 (rx,gnd,tx) and having a heck of a time getting it to work consistently.
@DIYTechRepairs
@DIYTechRepairs Месяц назад
Not mine. But yeah some quality issues i have heard about before to. Unless its connected wrongly. Then they get hot :D I have done that myself so.
@qtrax100
@qtrax100 Месяц назад
learned what i needed to know. Thanks
@pam8352
@pam8352 2 месяца назад
is rj45 pinout the same for all the inverters?
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
No. You need to read up on the inverter you look at how they do it or what protocol they use.,
@pam8352
@pam8352 2 месяца назад
@@DIYTechRepairs as i imagined, the victor max 10.2kw is , like every china inverter, useless with lack of any after market support. there are no manual or any kind of information about the rs232 pinout.
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
@@pam8352 They are often closed ports. in some rare cases you get help from the seller but yeah they only wanna sell and dont care about people want to use their equipment. You basically get what you pay for. Nowadays i always start by asking the seller if or how i can hook up to the device :D
@maxenielsen
@maxenielsen 2 месяца назад
Great tutorial. Thank you!
@Inmate533
@Inmate533 2 месяца назад
Battery companies need to do better with this crap. I've never had this problem with the lithium batteries for my power tools. I have batteries that are like 15 years old that never go dead like e-bike batteries.
@kaliktp1586
@kaliktp1586 2 месяца назад
I cannot find an automatic switch that handles DC to DC 48 v array 100 amps I am not using an inverter, I have two 48v solar battery array, I want to use one as a back up, the only item I have hooked to it is connected directly to the MPPT charger. I would like to switch automatically one battery power bank to another when the voltage drop, the switch’s I found don’t handle 100amp input. Any suggestions how to find? I don’t want inverters at all, it would not be necessary for my application, it would only add problems. Thank you
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
That i would say is tricky. What is the switching time you need? Ie between switching? And what type of security requirements do you got?
@HunGyilok
@HunGyilok 2 месяца назад
i guess i short curcuited my li-ion keeppower with a metal caliper - is done ?
@avinfor
@avinfor 2 месяца назад
If you add cost to the consideration (and you have the room), solar panels make more sense than the expensive direct solar heating option no matter how efficient. Moreover, you may have your energy demands covered on cloudy days (when the direct solar heating option won't work either).
@dustinlaverdure6711
@dustinlaverdure6711 2 месяца назад
Why did you say that the battery explodes in the description if it doesnt? Dislike from me
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
Never said my cells did that. It's more of a statement. Could have added a question mark but whats the fun in that?
@dustinlaverdure6711
@dustinlaverdure6711 2 месяца назад
@@DIYTechRepairs then what does the part where it says "shorted and go boom" mean lol...what's the fun In making your video title accurate? Gee idk I'll let you figure that one out
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
@@dustinlaverdure6711 As said its a statement. Il let you figure that out :P Apparantly it worked since you are here? :D
@dawidjlb2589
@dawidjlb2589 2 месяца назад
Red cable is + and black is - right? Then why You connected red cable to negative side of cell?
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
Where did i do that?
@ceeweedsl
@ceeweedsl 2 месяца назад
Do I understand correctly that reviewer bought the wrong configuration and then condemmned it as crap due to not being wired for the system it's not made for? So this is like the amazon review where they buy the one with the 3 foot cord and give it 1 star because they needed 6 feet? Better to look for a review for the product in it's correct application. Or am I missing something?
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
It was bought specifically for this market and marked to as that. But no. It was wrong. With that said the product is just bad. I had ordered wrong stuff before but this was not such an issue :)
@ceeweedsl
@ceeweedsl 2 месяца назад
@@DIYTechRepairs Ah okay, sorry. Seemed to be that others saw you had the wrong type for what you are testing but maybe they are wrong. Anyway, I decided against these for size and I only use simple two pole 120 VAC 15 amps so I could use a Xantrex RV type.
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
@@ceeweedsl yeah you could argue I picked the wrong one but it was advertised for my area. :) I use a normal contactor built for the purpose today so :)
@walters2023
@walters2023 2 месяца назад
Hi have a house with, 3Phase, Sungrow SH10RT 10kW Hybrid inverter and 16kW Sungrow SBR160 High Voltage Battery Modules , would this ATS works for my house battery system or, this is for the small solar caravan system? Thank you
@DIYTechRepairs
@DIYTechRepairs 2 месяца назад
It's a 3phase 63a ats
@walters2023
@walters2023 2 месяца назад
❤ Thank you so much, it's perfect for me then.
@alirezabaniasad530
@alirezabaniasad530 2 месяца назад
Thank you very much for this excellent video . Could you please help me with my tenergy tb6b balance charger? I have lost the balance connectors and i need to charge three 18650 cells just like the video.but i don't know if i need to connect just these four cables ? Or the two red and black output port also? Thank you for your help
@arbralouve
@arbralouve 2 месяца назад
Tack för videon 😊
@EbanQHanna
@EbanQHanna 2 месяца назад
I want purchase 4 of those devices. Please advise how we can make this transaction.
@Nicke411
@Nicke411 3 месяца назад
Vad har du för bredd/storlek på skopan?
@GWAYGWAY1
@GWAYGWAY1 3 месяца назад
That switch is a three phase model , I have one and it is a clever bit of gear and the switch timing has a dead bit to stop the two supplies being in contact. I am happy with it. The only time the switches can be live on both is when they are pushed manually which cannot happen.
@bullwhip53
@bullwhip53 3 месяца назад
Great video!
@libenasukro
@libenasukro 3 месяца назад
Where would i go in those git hub files to change the serial port command set? I have a Steca, but it uses many of the same codes, just for different functions. I thought I would see at least outlandish values, but I get 0 for every field. I even reversed the tx and rx just in case. The same pinout on a usb to serial works fine, so it's not the cable...I fear it's the operator. There are values in Wifi topic, but every other topic is blank. I tried MPI and PIP. No change.
@trhosking
@trhosking 3 месяца назад
While you were waiting for those batteries to charge you could have cleaned that monitor. 😁
@DIYTechRepairs
@DIYTechRepairs 3 месяца назад
:D 😀
@JC-XL
@JC-XL 3 месяца назад
Great video.
@tab_use
@tab_use 3 месяца назад
bs ! i SINGLE drop of water on internal flashlamp charge port . with hiss and smoke result. it stopped power button turned off. i remove the batt and sent to recycle trash.
@Karloskarluci
@Karloskarluci 4 месяца назад
Can't find anywhere to buy. Please give me some advice
@Karloskarluci
@Karloskarluci 4 месяца назад
Can't find anywhere to buy. Please give me some advice.
@mct8888
@mct8888 4 месяца назад
Are the connections you are making at 5:45 equivalent to charging using the discharge cable?
@MichaelBurgess3200
@MichaelBurgess3200 4 месяца назад
30ms would not shut down a computer. The PSU discharge isn't THAT low. It takes around 1-2s to completely discharge the PSU of a computer. It would indeed work for like a switch between solar, and grid power. Love the video though and very informative, thank you!
@neshifuturo
@neshifuturo 4 месяца назад
I bought welding helmet works 2 times and now not working
@kfjduredhvcjgyfrhfnf
@kfjduredhvcjgyfrhfnf 4 месяца назад
one thing i'm worried about. neutral breaker should connect first and disconnect last. if not, your house neutral will float short period and overvoltage in some phase(s) vs. floating neutral may happen.
@DIYTechRepairs
@DIYTechRepairs 4 месяца назад
Can't be done with a 10ms ats. The breakers also only break the hot lead. That is what you have the rcd for. It will break neutral if the current doesnt add up