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Forum topic by shipwright posted 1406 days ago 1108 views 0 times favorited 13 replies Add to Favorites Watch
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shipwright

4936 posts in 1433 days


1406 days ago

Has anybody tried the miracle cure for dead Ni-Cad batteries offered on eBay:
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=330487021593&viewitem= ?
If it’s this easy why isn’t everybody doing it? How can they keep the secret and sell the “simple process”?
My curiosity is piqued.

Paul M

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/


13 replies so far

View Dan's profile

Dan

3543 posts in 1515 days


#1 posted 1406 days ago

I have seen that on ebay. I have 4 dead batteries, two of which only lasted a few months. I did a lot of searching online and couldn’t find any real direction on how to repair them.

-- Dan - "Collector of Hand Planes"

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treeman

208 posts in 2084 days


#2 posted 1405 days ago

I have used the method to revive dead ni-cad battery packs and it worked for me. I posted it here .

View Schwieb's profile

Schwieb

1499 posts in 2096 days


#3 posted 1405 days ago

If it works I’d sure like to know too.

-- Dr. Ken, Florida - Durch harte arbeit werden Träume wahr.

View shipwright's profile

shipwright

4936 posts in 1433 days


#4 posted 1405 days ago

Thanks treeman. That site you referred me to looks strangely familiar. I’ll be trying the fix today, I knew if there was anything to it, it would be “out there” somewhere. I guess the seller on eBay is just hoping that not everyone looks very hard.

Thanks again

Paul M

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View NathanAllen's profile

NathanAllen

376 posts in 1779 days


#5 posted 1405 days ago

I remember seeing the exact procedure they’re selling not too long ago. It has to do with connecting the battery to a source that is 2x the voltage requirement to clear out the deposits and re-align the flow along the plates. Requires a bridge between the battery and the source and a volt-meter to verify you don’t have any bad cells along the line.

I’m sure you can google up a free version that should help you, check for key words like volt-meter, replacing cells, etc.

View Abbott's profile

Abbott

2570 posts in 1938 days


#6 posted 1405 days ago

I finally replaced all of my cordless tools as I grew tired of purchasing new batteries. I don’t know if I could go back to Ni-Cad now becuase of the extra weight. It was tough taking 4 or 5 tools and a 1/2 dozen batteries to the dump but became easier when I went and replaced the tools with the Ion stuff.

If I would have recharged the batteries I may still be using them…good luck.

-- Ohh mann...pancakes and boobies...I'll bet that's what Heaven is like! ♣ ♣ ♣ ♣

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ChrisForthofer

150 posts in 1702 days


#7 posted 1405 days ago

This can be very dangerous. Even if you are absoulutely sure of the battery chemistry you are dealing with (NiCd, NiMh, Lion, Lpoly) you could wind up with anything from a short circuit to an explosion. The lithium chemistries can be particularly nasty if misshandled/abused. Do this at your own risk and the fact that sites/sellers of this info dont explicitly state that over the first dozen paragraphs is scary. I guess though it is the internet, nobody can be held accountable for any “advice” you get on it :P

-- -Director of slipshod craftsmanship and attention deficit woodworking

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TopamaxSurvivor

14727 posts in 2311 days


#8 posted 1405 days ago

treeman How long did the batteries last after yoiu gave them teh treatment?

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View Gregn's profile

Gregn

1642 posts in 1618 days


#9 posted 1405 days ago

Will have to give it a try, beats paying $80 for a replacement battery.

-- I don't make mistakes, I have great learning lessons, Greg

View lwllms's profile

lwllms

542 posts in 1916 days


#10 posted 1405 days ago

”WARNING:
If you get killed by a poisonous explosion it means you did something wrong.
Electrocution is a real possibility also….”

From one of the links above

View mvflaim's profile

mvflaim

183 posts in 1726 days


#11 posted 1405 days ago

My buddy is an electrical engineer and he has revived his Ni-Cad batteries. I have no idea how he did it though

-- http://mvflaim.wordpress.com/

View Shopsmithtom's profile

Shopsmithtom

780 posts in 2830 days


#12 posted 1405 days ago

It’s cheap enough to try & you’re not out a lot if it doesn’t work. Feedback is mostly good.

-- Accuracy is not in your power tool, it's in you

View treeman's profile

treeman

208 posts in 2084 days


#13 posted 1403 days ago

treeman How long did the batteries last after yoiu gave them teh treatment?

TopamaxSurvivor,

They are still working. I first did this on a Porter Cable battery pack back in the spring. It still holds a charge and lasts quite a while. I have since done it on a couple of others and they all work like new.

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