Q: My 6V 4Ah SLA battery now holds less than 1Ah. Is it permanently dead, or can I restore it?
A: If your 6V 4Ah SLA lead-acid battery drops to 1Ah, it usually means severe sulfation and internal degradation. Full recovery is unlikely, but partial restoration is sometimes possible if you follow careful methods. Here’s what you should know: Why Did My Battery Lose So Much Capacity? The main reason is sulfation. During normal discharge,…