Electric scooter 🛵 🛵 and

Excellent video content! Forgive me for butting in, I would love your opinion. Have you ever tried - Lammywalness Trendy Trade Guide (erm, check it on google should be there)? It is an awesome one off product for learning how to recondition batteries at home without the hard work. Ive heard some decent things about it and my best friend Jordan after many years got excellent success with it.

There are several suggestions for getting a good result never attempt to do this until you are sure what you are doing - the acid can burn your skin check the voltage first - there may be a dead cell which would waste your time. Check the battery fluid. attempt to fully charge the battery. (I discovered about these and more from Jons Mender Guide site )

Once the battery is fully charged, next find out what the capacity of that battery is.

@@familyguyandothergreatanim2371 z xxx

I am converted

Me too.

Using magnets actually work or no? Lol

@@gerhang3361 not on my meter. tips are made of 316 ss material

magnetz it making cell fixed then litum batte light now voltage ok

I've been doing it this way for some dead skateboard batteries. But I also recommend trying to blow up them batteries ;)

Those without a bench power supply can just use a partially-discharged battery to revive the deep-discharged one. The lower potential between the two will naturally limit the current and will produce less heat.

@@M0DB0Y why ? What is gained. ? What is lost ? or poisoned?

How can you tell if it's taking charge? I have a dead 12v lithium. Thanks

@@threeworlds My bench power supply has adjustable voltage and current, and displays both with 3-digit accuracy. I set the limit to less than 50 mA to start, and there's never a problem.

I do this trick at 0.1 amps using a bench power supply ... using NiMh mode is a great idea too ...

Real bcuz i don't want to my battery explode 🙄

2x AA cells in parallel with a deal li ion cell. Make sure all connections are solid and then take a walk around the block. Goal: determine the response time of the local fire department.

@@uhmgawa6533 Or just connect it for a few seconds and don't leave it's sight and it's perfectly safe

I see this more and more. Started using it too, I hate screw or solder .. magnet are amazing

I advise you to check the resistance of your magnets with a multimeter, some have a coating with high resistance so they heat up

Magnets are amazing except on copper terminals :(

bro... get a stronger magnet... think super conducting... still wont hold it but what you are aiming for is a fall rate so low, resistance wont approach infinity in your life time :D never mind the impracticality of such a bat pack, or the substation connected to it

just build a spot welder

This battery is a Li-ion. It's a different beast. I wouldn't recommend this to be honest, it would be more successful on a NiMH battery and if it isn't it a worse case result would be less explosive.

Same i let the battery sit for a couple of month on the desk. Last time i checked, the battery was good. And now, there is just 0.100V inside. Don't understand.

you damaged ur cells in the process. leading to a shorter life span

Not a good idea. These magnets are coated with nickel and is not a good conductor compared to copper leads when charging at high amp rates.

@@furonwarrior unless you use it to keep them in place but still have full contact between the lead and the battery. How he had it wasn't the best, but it is a smart idea

are they still working

BS

Excellent idea! :D

Thomas Fanning this is actually horrible advice dont do this

This is not charging at "unlimited current". It entirely depends on the cell you use to charge the dead cell. In this case the LG cell puts out 2C or 3 Amps max. And it's also and old cell so it would be even less than that. I have never seen any Li-ion charger that puts out less than 100mA. Let's say if you do have one, how long would it takes to charge a 3350mAh cell? Let me do the math: 3350/100=33.5 hours! Yeah, that's over 33 hours to charge a Li-ion cell which I have never seen. Most charger would only take less than 4 hours. Lots of charger would take less than an hour. Some even take half an hour. That means they charge the cell at over 3 Amps on a regular basis. I'm not saying that's good for the cell but unfortunately there are lots of chargers out there that can charge a Li-ion cell in less than an hour especially cordless power tool battery chargers. Take a good look at all cordless power tool chargers: Dewalt, Milwaukee, Ryobi, Kobalt, Bosch... all of them have fast chargers. In this method I'm using, I'm only charging it at 3 Amps for 30 seconds. That's even less than a typical charger that does it all day everyday. Sure dendrites are formed in Li-ion cells but that's a typical life cycle of a Li-ion battery. It's like human growing old, having white hairs and wrinkles, developing cancer. That's part of growing old. Not all dendrites are bad, however. Only ones that are big and hard enough to pierce through the cell layers and short out the circuits. Most dendrites are harmless and part of the life cycle of a typical Li-ion battery.

Yea but tell me the current that it charged at. Oh you don’t know for sure because you didn’t limit it. When reviving a dead cell you only charge at a low current until it is at a normal voltage again. Then you can charge it in your ultra fire linear parallel charger

SuperBrainAK Yes, I know for sure what the charging current is. It's much less than 3 Amps. Here's the follow up video: kzfaq.info/get/bejne/rKydlapprNa3ZHU.html

The tool manufacturers want you to buy more batteries, so fast charging makes the customer happy and destroys batteries making the corporate jerks happy.... it's a win - "win".

One weird tip...I guess you're in the right place since youtube.com has no shortage of scams but the link you supplied is a classic marketing scam.

Don't work with a 406 DUO charger.

That's the point only 30secs?

did they hold charge?

@@anthonyhadsell2673 sure did bro, still going

Really? I find that very hard to believe. Not if the cell's CID has been tripped it won't. It physically cannot! The CID is a current interrupt device making a physical separation of the circuit like a fuse. This is just a "wake up" method for very low voltage cells. However even with all that said, this is a VERY BAD idea and stupid on oh so many levels. That 1.7m people watched this recommendation is the only positive about it, certainly there should be a bunch of warnings attached to the video. It's impossible to list all the reasons in a YT comment BUT just "off the bat," paralleling 2 cells of very diff voltage levels is dumb and dangerous due to possible excessive equalization current. Just from your example of a 25R cell, if that one was the charged cell, it could easily dump over 50a instantly (25r can pulse discharge more than that too,) to the low cell, with unpredictable results on both low cells and any thin AWG wires connecting them. Fire can erupt wyite quickly in that circumstance. Yes, crap low discharge rate laptop cells are less of a danger for this, but there are so many other factors. Aside from all that, the "woken" cell may suffer from dendritic growths and may self discharge to LV quite quickly, making the entire operation essentially irrelevant. Considering how cheap these cells are I can't believe people are wasting their time, and inviting a potentially dangerous situation in their homes, but they "your life, your house/mortgage," if people are renting though, I wouldn't let the landlord see the video or comment ;p

@@ABritInNY I didnt say CID was tripped at all. Just low voltage that my charger wouldnt charge. I used a full charged bat and jumped it in 20 second increments while holding in my hand to keep an eye on heat. Anyway your question was really? My answer is yes, I dont talk shit. As far as the rest of your comment, I only got to about the 3rd line before becoming to bored to continue🤷‍♂️, but I appreciate your effort, thanks. I have no doubt you are very smart😁

@@rustyh1686 Understood, but then I'm not sure why you'd say in your comment"...to reset the CID button." I mean why mention reset if not tripped? That was kinda the part I was commenting on.

Charger didnt charge it for good reason. Its safety function that is built in. When litium battery goes under its safe to charge voltage, it looses its capacity and creates internal resistance witch eventually cause short circuit witch causes it to heat up and catch fire, if not explode depending construction. Sure you are able to revive battery like this, but its not safe to operate afterwards and its capacity is cut greatly. I have done this to my rc Lipo batterys for few times, but i know the risk involved and kept these batterys separated and monitored from the rest until it bloated too much for my comfort level, witch point i run it down to 0 volts, using light bulb as load, check there was no voltage in any of the cells, cut the connectors off to be used in other batterys (only cutting one lead at the time), electric taped the lead ends and recycled it according the laws around here.

True, absolutely. You cannot revive an extinct dinosaur but you can awaken a sleeping dragon.

This will only works for alive discharged battery

Yep once its dead, its dead!

Gary Harper: A cold bucket of water will work.

I have a bunch of samsung cells from a sony laptop, 0.8V and 0.5V, are they dead or reviveable ? also, if they're dead, if I try charging at very low current, what are the risks of them blowing up?

Strangely I have an electric bike that I have built a battery out of 18650 cells that originally tested "dead". I got them to take a charge using the parallel battery method. This e-bike will run for about 4 hours continuously on a charge; using these reconditioned cells. It's been going like this for about 4 months now.

@@DBPR01 some cells have protection inside , an ic chip that will cut the power if the cell voltage is too low. It may show zero volts when actually is not. Whatever the case, just check temperature when charging and discharging, some cells can be hotter than others.

@@clixium Both of your lasts comments are useful, I believe some applications can perfectly be made with "dead" batteries with no risk at all, such as a stupid ring device or so.

Ahmad Ebrahimi will it work as new battery cell if this process is done with dead cell ?

@@kuldeepsinhzala6471 no, it last only like 5 - 10% than the original power

Not true I revived a point & shoot camera battery that I had let get too low and it has worked fine for over a year now ' all depends .

When they show less than 2.5v or get warm when charging , i give them to the recycling center.

Wait, so, where IS he from?

they are not 6000 mah anymore. (they probably never were, companies lie a lot about 18650 capacity)

Good point, glad someone pointed it out. Some further remarks: 1) It's not a good idea to use another cell to do this, as you'll be depleting it quite fast, and you can't control the (dis)charge rate. Best use a bench power supply, or an AC/DC adapter of the correct voltage, with a low current rate. 2) "It's already at 3V". No, the other battery has drained to 3V. Just because you touch the tips of the battery under charge doesn't change the fact that what you're measuring is the voltage of a parallel circuit. Hence, you measure the voltage of the other cell, not the one you're touching. Due to the high current at which it discharges into the other one, it experiences a voltage sag, which is why you're measuring 3V instead of 4V. If you want to know the voltage of the battery that's being salvaged, disconnect the other cell and measure in isolation. That said, there's nothing wrong with the general principle. With the caveat, as you pointed out, that those revived cells will never be quite the same again.

@@EvenTheDogAgrees Not to mention the cells that have reversed polarity.

@@bingosunnoon9341 you don't get reverse polarity by connecting cells in parallel. Reverse polarity is what happens when unevenly charged cells are being discharged in series. The stronger cells will push current through the circuit, including the weakly charged cells, and force them to discharge so far that eventually the charge on those cells flips polarity.

@@EvenTheDogAgrees That's not true at all. The cell nearest the B- terminal always reverses first, regardless of connection scheme.

Using another cell to charge it will destroy them both. The battery providing the power will discharge at like 40 amps and will charge the other battery at like 40 amps. You are essentially short circuiting one and charging the other way too fast. Batteries have almost no internal resistance. So they can suck back a near unlimited amount of amperage. The amperage they are charged at and discharged at should always be controlled.

He put tiny magnets on battery

@@troublefollows9986 might have just put batteries on the magnets

What cellphone case? If you mean that green thing, that's just the standard rubber sleeve tons of DMMs come with to protect them against shocks. Electricians use these in factories and on construction sites, so not a bad idea to offer some measure of protection.

That's true.. NiMH uses more of volts than rest other settings, hence, it's just like connecting any other cell in parallel as shown. But again, change the settings from NiMH to Li-ion immediately else the battery would get too hot. Depending on how old and warn off the battery is, it may not hold the charge for longer if used against a load.

it wont read it. it's just say ...connection is retarded. I recently got a bunch of Lipo in deal... They were all DOA..lmao ( first I was pissed..but did a little research) I plug it into a USB retarded charger...( IT dunnn read jack shit.lmao) Just enough to give the batteries above 2.8v. Then I charged it in the fake Imax charger( which I paid full price for.lmao) Whalla....all the batteries came back to life..Hold charge too. I use them In my drones....I get the same amount of flight time..... I also recently got OldTOp batteries from a TRASH CAN... I figure I do my own R & D.lmao I got lucky...All the indiviual cells were reading mostly above 3.V a couple at 2.8..... I actually made a 12V pack and slapped it in a $20 R/C...that was running on 8.4 nicad.....@ 600 mah.lmao IT ACTUALLY WORKS....i have 12V (3s) 18650 @2200 mah. I wasnt sure about the C ratings of these batteries. i wasnt sure if the Car's control board would take 12 Volts. I got lucky.... The car runs 1/4 FASTER and for almost an hour of bashing verse only 15-min. No carzy mods...the pack fits into the battery bay easy. The cells got warm. ( NORMAL)..just like the Ni Cad. I plan on using them in my other R/C FLYING contraptions.. for the next level of R and D. I dont trust myself to install them in the Kiddies POWERWHEELS. yet .Lmao I know LI Ion are use in electric bikes...ect. If I get a dead cell...I'll try this before I throw out a possible dead cell.

FormerMazda yup this works it's a good trick we use at the track if you have the cut off set to low then the voltage will drop past the point the battery charger won't recognize the battery, so once you set it in NIMH mode it will quickly boost the voltage up but you only need to bump it up to a round number like 3.7v to 4.0v then quickly set the charger back to lipo and it should charge so if it keeps happening then the cut off it set really low or it has some type of problem internally but yes this is a great hack!

Another trick you can do is hook directly to a 99 cent solar panel garden lights...I have wazzo of old rotted ones. I hook up a 18650 2400mah that was below meter charger or wont charge for 4-5 hours......wallah. It came back to life with 40% charged. Save money on electricity too.lol I just need to make a tray for 10 -15 single cell/solar set... So I can pop the batteries in and out... I finally got 18650 batteries holder....(triple). Makes life easier for useage and charging.....I just need to wire balance lead for the multy Charger....So it'll balance the pack... i can easily pop out the a cell if one of them goes bad because thet're NOT welded or solder. Hope that makes sense. you can get those little connectors from old electroncs...such as printers...ect..I get those from thrift shops or recycling centers. just clip the conneters to the size you need.... There's 540, 390 and 180 motors in old printers... I can use those motors r/c toys...ect

OneEyE Monster I don’t think you know what lmao means or you use it way too much

100% working way with NiMH-mode

don't try to charge a cold battery, let it rise to normal room termperature first, some tool battery chargers have sensors that check for this before attempting to charge

Not that this guy shows ANY safe knowledge regarding lithium ion batteries. The guy you want for this info is called Mooch. Don't follow this guys advice at all if you value your health and property.

RV-PowerWall you're* up would *affect

I've done all sorts of crazy stuffs with Li-ion batteries and I've never seen any explode, not even once. What kind of battery did you explode and what did you do to make it explode?

John Wuethrich, that was some funny shit !!!!!

Yeah, were not trying to shock Frankenstein back to life here....dang, grow a pair or just ask the neighbor to connect this wire 4 me and count to 20...

Loo