New batteries - problem

[forsberg]

17 hours ago, Johny London said:

I'd hear a bit of an over charge could get some of the clag off, but fair enough. Knackered is knackered, I guess. It didn't make any difference, capacity wise.

That is halfway true, a wet battery can  sometimes  be "cleaned" by repeatedly quick discharge and charge (100-200A) 70-30% SOC but if the clag buildup on the bottom reaches the plates you will have to pour the electrolyte and clag out and rinse it a few times and refill with new electrolyte, not something you would do anymore. On Gel batteries or any other fancy construction this is not possible as the clag has nowhere to go. There is a lot of former good advice out there that now are out of context. Just the other day I was told by someone that I should not store my battery on the concrete floor as it would disharge, which have not been true since the invention of plastic casing.