Nicad Battery Fix Repair Guide?

stp57

The guy that I purchased my guide from (over a year ago) has set his site up so that it can't be forwarded. All power to him if he wants to make a buck.
The technic is pretty simple. You must have a digital voltmeter. Jump your 14.4 v battery with a 18v battery (fully charged) for only 5-6 seconds at a time. Check the voltage after every 6 second jolt. When your battery reaches at least 16 volts then you can place it on the charger. If it won't get past 14.4 volts then you have a bad cell. All of the cells are 1.2volts & can be purchased online & soldiered in place of the bad cell.
Note:
Make sure that you match the polarities correctly when jumping the batteries. If you are resurrecting a 18v batteries then you can jump it with (2) 12v car batteries in series or (4) 6v lantern batteries.
Steve

NRV2

I have never tried this with a car battery. The repair guide I used required at least one good tool battery to perform the fix. Most people have at least one sitting around I would think.

The idea is to "burst" the hairs or crystals that build up in the cell. This done by jolting the bad battery with a quick shock of usually double the volts of the battery your repairing. Its easy, but the steps need to be done correctly!

Click here ----> linkremoved

superman2008

Here are the instructions for fixing nicd battery!

If it doesn't work, not my fault! Blame the creator @ above post!

beautiful

Hi Superman,
I do not see the instruction for fixing nicd battery!
Can any one help?

maninthesea

My question is has anyone found a good way of reconnecting batteries in a cell that were connected using metal strips spot welded to the ends of the batteries? I have tried to solder in a good replacement cell and cant get anything to stick.

RE the shock method I had learned a simular method for reviving large lead acid gell cells with dead cells several years ago. If I recall for the lead acid you put about twice the normal volts on it from a power supply that had a current limiter. The voltage was high but once the bridging had burned thru the current limmiter kept the powersupply from destroying the battery.

stp57

maninthesea,
I've wondered the same thing but I can't seem to get an answer anywhere.
Steve

EPD

tried truck starter on 200 amps .... no dice, i thought it would at least give me 12 volts

b1gk3n

hello, all the info you give is awesome. I was wondering about the link to the battery fix instructions. The link to the pay web site is there but in the next post you type in here is the instructions and there is nothing to click on.

s.kelly

very cool info... had no idea this was out there!
thanks all

checkin

Can you use a dc power supply, or a auto battery charger?
Trying to jumpstart dead 7.2 battery pack.

stp57

Safer just to use a car battery or better yet a fully charged 18V tool battery. Remember, only about 5 seconds at a time & check with a digital volt meter every time. If your 7.2V doesn't get up to at least 9V it has a dead cell. You won't be able to revive it.
Steve

JONKNF

what volts should u see when u do a ryobi or makita 18v battery
thank u

stp57

24 volts works great. You can either use two car batteries in series or 4 lantern batteries (6V) in series. I use the lantern batteries.
Steve

Kastoria

Sounds great for Nicads but does the same fix work on lithium batteries?

Five Star

does any body have step by step instructions how to do it..?

i got a few dead batteries laying around!

__________________

tomluoma

Do a google search for "ysuusy" "easebatteryfix" to find the instructions

stp57

Lithium batteries are known to explode when overheated. Don't try it!
Steve

BACKWOODS

I used 2 18V Dewalt batteries in series to give me the shock power of 39V.
I fixed 3 today, very nice tip. My Fluke meter leads slipped over the battery connections so I did not even have to create a jumper wire, I just used one lead between NEG on 1 battery and POS on the other.
Money Stays in the Bank

John Netbee

Before "surge-jumping" your battery pack with extra volts you might want to try the following technique (it worked for me):

1. Try charging your battery overnight
2. Remove the battery from the charger
3. Now momentarily short the + and - terminals of the battery

The shorting could be done using a short piece of wire
- or - use a paper clip that you have unbent.

When you short the battery there will be a healthy spark. Please use caution, goggles and gloves would be a good idea, and make sure you short the terminals for only one VERY brief moment. NiCads can generate quite a bit of current and this jolt can sometimes be sufficient to revive any weak cells.

If this simple shorting tecnique does not work
you can try the SURGE METHOD outlined at:

ysuusy . com / easybatteryfix . html

.

Railman

For those having trouble soldering, It takes a lot of heat. You need a soldering iron with a big enough tip, 60/40 rosin core, or solid solder, along with a little pase flux. Radio Shack is a great place for these. For detailed instructions, I'd go to an Radio control site, & go to the faq section for the nuances. Try Radio Control Car Action (RCCA) for help.

Joe