Lithium Ion / nicd battery jumpstart: How to

[ShadowwwLFS]

Way better to use a proper hobby charger for restoring 'dead' LiIons (such as iMAX B6 and similars).

[DarkZero812]

Uhh... Most computers shutdown when voltage back fires so that I see a problem. Even for a jump start. PC PSUs are touchy. If you decide to do this, make sure the PC you use is a junker. Passing on a helpful hint from someone who attempted the same.

[severoprisan]

Thank you !!!!! Just revived my Acer A500 battery. It works.

[vta1985]

It does work, I can confirm. I used an 18v drill battery and struck the leads on some dead 3.7v digital camera batteries and they are working fine over a year later.

[XxUnknownTubexX]

U suck dick !!!!!!!!!!

[jimdog1982]

im not gonna risk burning my face eyes or hands in the process i rather take the dam battery cells out and replacemet much more safe then burning my eye lids and battery acid is not fun and its dangerous did u notice he dident do it him sel so joke on u dude lol

[ifixmixers]

@manwithtwobrains

How the battery was built determines it's max charge rate. Not applied voltage.

I'm not saying not to try it, I'm just telling ppl to use caution.

Using this method with a laptop would provide safer results, because many laptops have a current limiter on their USB ports for battery conservation. Therefore if there was cell damage inside the battery, it would not allow the charge rate to continue.

[sergioratti]

SWilliams, after hours of trying different methods...YOUR WORKED! thank you very much!

[sergioratti]

SWilliams, after hours of trying different methods...YOUR WORKED! thank you very much!

[babeudoo]

@bitsliovalenti

the black one is negative the red one is positive. A usb charger or a phone charger that you're not using anymore will do -- expose the wires, plug the charger to an electrical outlet then let the wires touch the corresponding + or - on the camera battery for a few seconds. Then charge the camera battery as you normally do.

[dan94519]

I agree this would be dangerous to do with a Lithium Ion battery, the risk of getting hurt is not worth it.

[webos1337]

Thanks :D

[ifixmixers]

I'm an electronics technician that maintains wireless theatrical equipment I ask that you BE VERY careful while doing this, Lithium Ion battery overpowering can cause explosive results. ONLY tap the battery with a high current for a short burst..

High charge rates have caused numerous injuries worldwide. check this lab experiment out.. here on Youtube @watch?v=k5f0VCoFuFM

[lamborghinina]

thanks man it worked for a dx-1 blackberry storm battery i put it on the to outermost terminal for like 30sec.

[GameUrg]

how long should i do it for???

[KiDjOe247]

THANK YOUU SOOOO MUCH, IT WORKED FOR ME

[jbx907]

i would do that to my computer, i has an mp3 player which was either damaged and shorted. it damaged my board! if you really needed a surge current, then used an unregulated supply just to give it a charge! you can also use a 4700up capacitor charge it up and discharge it on the battery! why use you usb bus to do this whew!

[jro9001]

can tis work for laptop batteries?

[poweruser69]

well if you are so smart then why are you trying to destroy your computers usb system,they are powered through transisters on the board, you will eventualy overload the circuit and burn it out perminantly.

[TheSageWizard]

thanks, your method fixed my shorted out dsi battery

[thelegendbullet937]

Heck yes that is dangerous! If something went wrong, you could fry your USB controller, and maybe even your Processor because that's where the USB get's it's power. If you want to do something like this, at least use a non sensitive, and highly expensive electronic device to do it. Get a cheap 3 volt power supply!

[TRCpLaYa]

i tried it on my bb 8900 battery it didnt work ! i put it on for 15mins with black = - and red = + plz help

[rmstudio]

Yes it is dangerous... Especially trying this on Lithium Ion batteries! not to mention how long you leave the battery connected and the the voltage of the battery your trying to jump start..

[jxrz]

Quick and dangerous solution for li-ion/lipo batteries, if you're going to attempt jump starting one of those you don't want to exceed 4.2-4.25 volts, at approximately 4.5 volts these cells become highly unstable & have a tendency to bloat/vent noxious gas/explode in flames, have a look at some of the other video's about lipo li-ion batteries on youtube.

You might get away with this with nicd and nimh batteries but not their lithium cousin's

[rockbandmidi]

Someone will lose a finger..

[jgonzales27]

you are a genius it worked on my blackberry curve and i was so close to buying a new battery thank god for youtube

[paulmt12345]

Buy a replacement battery, have you seen the video's of what could happen if you overcharge these things! They catch fire or explode so violently its like a mini fireworks display. Whilst unlikely with such low voltages applied its not worth the risk, you could seriously injure something or set your house on fire.

[oldey2220]

seems to have done the trick for me too on my BB 8700 battery. (held till it got warm)

[machmichaelcadavos]

sir.......... how about dead batteries ofmp3 player? will it still work using usb cord?

[machmichaelcadavos]

how about a dead batteries of mp3 player?...........will it still work???-----jim28

[vangelis123]

how do I know which one is positive and which one is negative?

[yzdeaner]

Rather than trash a used connecting cable, try jump starting your blackberry batter with a 9 volt battery. Just get 2 wires about 8 inches long. Expose both ends of each wire. Use duct tape to connect the wires to the + and - leads on both batteries (pos to pos and neg to neg) Hold connections for 1 minute intervals and repeat procedure 3 or 4 times. Its like electroshock therapy for your 3.7 volt BB battery.

[SWilliams101R]

A capital idea dean, this technique would work as well.

[yzdeaner]

From what I understand the BB batterry has a memory chip inside of it that needs to have a minimum charge in order for the battery to be rechargeable. When the voltage drops below the minimum your BB will not charge the battery. So the entire purpose of the shock therapy is to juice up just above the minimum and then place the battery in your BB for going to complete charge. DO NOT attempt to completely recharge your battery using 9V,120V, your computer, home generator or car battery)))

[rippythour]

Awesome yzdeaner.............this worked perfect for my casio camera battery......little risk and no fear of fire and explosion as commented by others...........This is the best way to jumpstart a completely used camera battery !!!!!!!! Thanks

[MetalDetectingLa]

@yzdeaner will this work for an 18v lithium ion battery? what would the jump start power be?

[yzdeaner]

Response to MetalDetectingLa : I can only attest to trying this on a 3.7v BB battery. When the battery falls BELOW a certain voltage it will not accept a recharge due to the memory chip that I'm told is inside the battery. Recently I recharged a new battery that came in the mail completely dead. I ending up connecting 6 X 1.5v batteries in series. I measured the voltage at 9.4v with a meter. The wires that I used were 14gauge (using 18G wire didn't work). A dead 18V Li is another story.

[yzdeaner]

Response to MetalDetectingLa "continued" : Sometimes batteries die of old age. 18v batteries (like for cordless drills) often die from over use. I don't believe they have a memory chip issue. You know if your battery is truly dead if over time it would rapidly loose charge under load after a fresh recharging. Then suddenly it won't charge at all. A typical 18V charger has an input voltage that is many multiples of 18volts. Therefore there is no use trying to shock treat a dead battery.

[jesuismoi7]

Worker perfectly, thank you.

[titusm]

when you have a battery with 3 wires...lets say one white one red and one black....

i suppose the black one is the - but...then on witch one would i connect the +

[L0cusT101]

i used the usb cable of my plantronics dsp400 wich my dog eated like the half of it...so i did exactly the samething to my cable as u did to urs, but it when i touched the battery, it did nothing...like if there was no juice in the usb cable...is this normal?

[SWilliams101R]

It's possible the battery is totaled and will no longer accept a charge.

[L0cusT101]

i just bough an usb extention for 1$ lol, ill try with this! i prefere to try again for 1$ than buying another battery wich will die in some month or even maybe ill receive it totally dead

[tekhed580]

Idiot. Overvoltaging/zapping lithium ion or lipo batteries is EXTREMELY dangerous.. u can potentially cause them to overheat and rupture. ah hell everyones just gonna rant at me for saying this, but its NOT a good idea. and it IS dangerous

[SWilliams101R]

Please do not call me an idiot as you haven't a clue of my intelligence and your insult depicts yours. Also, I never said this is 100% safe, and the other users have made note of possible issues which this could cause if not done safe.

Thank you for your input, but please, be more respectable when posting your personal opinions. Thanks.

- SWilliams101R

[klemens3333]

Good on you! Idiots have no right to insult you... Kick them into their tabernacle or barnicles! :)

[jeffsav93]

@SWilliams101R SWilliams101R, I like you already. Though we haven't met, you have the attitude of a mature, respectable adult. Tekhed580 & SWilliam101R are right though. It is dangerous to Jump start ANY battery, no matter what battery it is. By over charging it, over doing the voltage, or even touching the wires to the terminals, it is dangerous to you and the device/battery. You wouldn't use your car battery to light your grill, or PlayStation. what you do this, be careful and take precautions

[rmstudio]

@SWilliams101R The guy is very right.. You do not demo or actually speak on the "SERIOUS" dangers of doing this.. As any Lithion bats are very dangerous to try this with and also "Attaching the wire or leads in the way you discribed" is dangerous. This should be done only with at the min of "Striking or tapping the leads to the batteries" not "Holding them for a minute or more. The important factor is finding out what voltage your using for your source and what voltage your trying to jump start.

[michael9515]

@SWilliams101R the voltage is high but the voltage can be as high as it wants to be if there is not enogh current... in usb normaly runs between 150-200mA in power usb up to 350mA so there is no danger at all... the other two connectors at lithium batteries are for temperature sensores and most of them have prebuilt cutoff circuit when the woltage gets too low or too high... i charge nimh batteries on my regulator on constant 0.5C... and also did the same on few phone lipo and liion... i'm alive

[joymac777]

@tekhed580 - ouch! you got nuffin to say now, ey?

[UltimateJiuJitsu]

Sounds like you work for Blackberry :-)

Great video S, thanks!

[klemens3333]

What makes YOU IDIOT call anyone an idiot when you don't agree with them? Your behavior is more idiotic, because in fact there is no longterm over-voltaging/ -zapping of the battery, because with 5 short zaps the battery has no chance to warm up at all!!! Only IDIOTS reckon it does!!!! :)

[tekhed580]

god some people must be bored. seriously. ok i called someone an idiot. you cannot tell me zapping any type of battery and particularly lithium based cells is 'safe'. but why the rants guy's it was a passing comment. no big deal. besides which this is 4 months old. and youv ranted about this comment twice (klemens).

Allso sorry for any disrespect SWilliams101R

offence was not my intention.

[writecory]

great job!!! worked for me!!!

[TehMG]

I see the water sensing sticker on your blackberry battery has turned pink!!!

Now the world knows you dropped your BB in the toilet. ;)

[renroth]

You will blow your computer's motherboard if you're not careful

[Lourdie]

there are 4 prongs on the BB battery which is neg. out of the four and which is pos. ?

[DjDestinyChicago]

Damn, this was my last hope! My blackberry only turns on when it is plugged in

[rectalmist]

worked like a charm. also, it was much easier than trying to bend the prongs of a 9v battery and using that to jump it. thanks!

[denissusmel]

Didnt work for me.I did everthing right.Must be that my batery is totaly for trash

[SWilliams101R]

Providing you did have the correct contacts / USB (or whatever) kind of jump starter this should have worked. I would agree that the battery may need to be replaced.

[denissusmel]

I did everthing you said corectly and it didnt work.But my battery is realy old so i bealive the problem is in the battery.What do you think about frezzing the battery and after 15 hours try to recharge it i heard that works.

[zharchy]

thanks! it worked perfect!

[SWilliams101R]

Your more than welcome good sir.

[DCSpeed2]

In my experience this does work to bring a totally dead battery back. I did notice when doing this on Lithium they came back but only about 10% capacity. What kind of capacity did other people get back?

[homefree2008]

ha. it works on a sanyo 8100 cell battery. kept on there for about 20 to 30 seconds

[SWilliams101R]

Good to hear :)

[5StarComedy123]

i dont kno which wires are positive or negative. it has red blue yellow and brown...which once are the positive and the negative???

[SWilliams101R]

I think its safe to say Red is positive, and brown is negative. I'm not 100% on that though, as I'm not infront of the unit.

[kinggie]

it works...thanx so much!!!

[sdamak]

thank you!!! it works!!

[xJ4ME5x]

It worked for my digital camera!

[SWilliams101R]

Nice, glad it could help you out. Better than throwing your camera out right? :P

[202free]

hi does anyone no how long i should charge a this kind of battery

input 5.0v

output 3.7v li-on battery

it is built in to some phone speakers i bought today i have been looking at li-ion batterys and found they are dangerous if overcharged any help would be much appreciated as i dont want my house burning down

[phorzer32]

What?

[serenityhindu]

wat happens if my battery is from a laptop?

[SWilliams101R]

If it has a positive / negative feed, try this method to jumpstart battery.

[chris2z]

i mean, cuz it has like 2 negatives and 1 positive

[SWilliams101R]

Can you determine which of the two negatives are used for charging? Or are both? Also, are you sure one is not ground, and the other two are positive and negative?

[chris2z]

well the - is on the left and + on the right, there is a C near the - and the middle says nothing

[chris2z]

also, which colors of the usb are positive and which are negative?

[SWilliams101R]

It sounds like the 3rd connector might be ground. Also, the positive wire is 9 out of 10 times going to be red, and the black is negative.

[chris2z]

awesome thanks i'll try it now.

[SWilliams101R]

I've searched for a solution for this but haven't found anything but cutting off a bit of extra negative cord and attaching it back to the negative wire and then you have two negatives and one positive. However, I have not tried this yet so if you'd like to let me know how it worked if you do this that would be good info.

[chris2z]

notihng happened. oh well.

[SWilliams101R]

did you hold it for more than 20 seconds?

[chris2z]

how can you do it with the sony dcr-trv740 video camera batteries?