>=20 > On Jul 16, 2013, at 9:40 PM, SM Ling wrote: >=20 >>> How do you recommend reconditioning a dead SLA battery? >>=20 >> Wouldn't get your hopes up >>=20 >> I've tried a variety of methods ** for rejuvenating SLA and wet >> batteries, with poor results. Once the plates get to a certain >> degradation it's difficult to get them to hold any sort of useful >> charge. The best thing is to never let them get into a prolonged >> state of discharge >=20 > It is easier to see the decomposition of the lead plates in a normal > water-based battery. It is no more the same chemistry structure. I > can't bear to throw some good heavy ones away, though they can't > perform as a 12V rated SLAB, they can still perform at 10V or 8V, and > they are being using them to capture solar in the day, and charging my > portable at night. >=20 > Cheers, Ling SM When you use a SLAB that charges up to 8V.... are all the cells decomposed = the same amount or is it one or two cells that have decomposed ? Gus --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .