In article ,
Veggie wrote:
I ended up borrowing a lab power supply and am charging it at 1 amp. I
figured it can't be healthy for the battery to take a high current
charge. From my experience in nickel batteries, fast charging shortened
battery life significantly. Not sure if this translates to lead acid.

What voltage was needed to pass 1 amp? This tends to be the clue. A
heavily sulphated lead acid can have a very high internal resistance so
most modern chargers can't pass enough current. Same as trying to charge
it with the car alternator after a jump start.

Leave the lab supply set at one amp on for about 3 days.

--
*Monday is an awful way to spend 1/7th of your life *

Dave Plowman London SW
To e-mail, change noise into sound.