Are my batteries shot? Charging question

Matt_Colie wrote:
Lead/Acid batteries do not play well in parallel.
As DonDat said, you have to charge them separately. What he neglected to say was that to get full power out of them, you always have to charge them separately.

Batteries play just fine in parallel. With the OP's problem it would be good to charge them separately to isolate his problem. Under normal circumstances, there is absolutely no reason not to charge batteries in parallel together. I don't know where this misleading information comes from but it is utterly false. The SG readings of my series/parallel battery bank are spot on with each battery. I charge them ALL at the same time everytime.