I've just bought two new batteries for our boat (Trojan SCS150) and charged them up for the first time. I've noticed though that they charge to different voltage levels. The house battery
shows 12.55V (on my multimeter) at full charge while the cranking battery
has 13.22V. Is this normal? is there this much variation in charge level, or should I be calling my battery vendor to ask for a replacement? Currently the cranking battery is isolated and hasn't had any load (I'm still wiring
and the starter isn't hooked up yet) could this maybe be the source of the discrepancy?
Thanks very much.