possibly refreshing a dead car battery

Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member
All of us occasionally deal with dead car batteries,
heres a few videos claiming you can refresh and recondition lead acid car batteries
Ive yet to see it done succesfully






 
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Grumpy

The Grumpy Grease Monkey mechanical engineer.
Staff member





batterys fail for several reasons, obviously physical/mechanical damage is far different than one that's totally discharged
If youve tried to refresh a dead battery did you have any success?
 
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johnnmo

Active Member
If you have a gell cell that is dieing, try this.
I have done it 3 times with gell cells.
Take it out, turn it up side down for a day.
Now, still upside down trickle charge it for 24 hours.
Turn it right side up and finish the charge.
I have one that is 20 years old and it is still going , using this method.
 
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