Any Point in Attempting to Salvage a Battery ....

[SabreKai]

to put a charge on a battery of unknown vintage showing 8.86v?


Sabre

[maxingout]

I never try to salvage a battery. You might get it to work for a short time if you were lucky, but it could fail you when you need it most. I never skimp on batteries.

[David M]

You could try but as Maxingout says, do not rely on it. If it is more than about five years old or it has been discharged for a long period of time then chances are pretty high that it is shot.

[Rhapsody-NS27]

If it's supposed to be a 12v battery, I would say definately NOT. If I remember right, a 12v batter will normally show a voltage slightly higher than 12v and is considered dead at around 10.5-11v. Anything less will be damaging and wouldn't be worth trying to revive. Trying to charge could possibly cause it to explode.

[CharlieJ]

No.

Charlie

[capn_billl]

You can put it on a charger overnight and check voltage in the morning. Like the above say don't use as your only starter, it could fail at anytime. I did this with an old deep cycle, and used it as a trolling motor for dinghy for over a year after it was "dead". Sometimes they come back, but the plates are probably sulfated, and flaking.

[capngeo]

only if you mean recovery of the lead!