Nicad batteries.... bring'm back to life

[Sir reel]

I noticed that one of my 14.4 v batteries didn't want to take a charge this weekend. Been looking for good deals on some replacements and ran across a couple of folks who were supposedly selling the secrect to how you can shock em out of cardiac failure. Anybody familiar with this process who can explain it? Thanks.

[Jumptrout51]

YEP.
Discharge the battery as much as possible.
Then put it in the freezer for 12 hours. That is 12 hours only.
Then...after it warms to room temp.
Recharge the batt.

[BAD BEHAVIOR]

Or use a charger the will condition the battery before it charges the battery. I think it deionizes the sulfate from the plates then reionizes or something like that. been a long time since my biology/organic chemistry classes!!

[Sir reel]

Thanks for the tips. BB, the battery came with a saw, drill, and charger that are all Ryobi. I don't know if the charger preforms the function you describe or not. I saw one video of a fellow who was hook'n dead batteries up to a welder and shock'n em with about 30 V of DC.

I checked with the battery source yesterday and they said they would rebuild it for $50-60 dollars ....I can buy new cells and put em in myself or by a replacement cheaper than that!!