I frequently come across old UPS and other devices that use SLA batteries, normally 12v.
I've been able to salvage some of them by filling them with distilled water, but some times it doesn't work.
Is there a quick way to tell if they are salvagable or not?
For example, when I remove the small rubber caps and look inside, if I see rust, does that mean the battery is unsalvagable?
Conversly, if it looks clean inside, with white cloth looking material and a lead colored metal sandwiched between, is that a good one?
Thanks,
Gary
I've been able to salvage some of them by filling them with distilled water, but some times it doesn't work.
Is there a quick way to tell if they are salvagable or not?
For example, when I remove the small rubber caps and look inside, if I see rust, does that mean the battery is unsalvagable?
Conversly, if it looks clean inside, with white cloth looking material and a lead colored metal sandwiched between, is that a good one?
Thanks,
Gary