Re: Positive or negative ground ?

Posted by Owen_Dyneto On 2009/8/15 9:12:45

PackardV8 is certainly correct about his cautions of overuse of a trickle charger (as opposed to a battery tender), but technically it doesn't deplete the acid, the acid is actually strengthened by charging until the max of about 18% is reached; thereafter overcharging can warp the plates and if they warp enough to fracture the insulator between them they can short. You could also damage the cell matrix, in either case the battery is not recoverable.

My general practice is to trickle-charge overnight (at about 4 amps) once every 6-8 weeks during periods of prolonged car storage.