RE: 1314 vs 1315
I think the issue raised between the 1315 and 1314 separators is probably
valid.  When the smart charger cycles into the desulfating mode it's at
about 14.4 or better.  Fine for an AGM battery but higher than the lead acid
starting battery might like.  Therefore the 1314, set up to charge the aux
battery when the engine is running but not charge the starting battery when
the aux battery is taking the charge apperas to be a safer setup.  Since I'm
using a 1315 and do somtimes camp with a solar panel setup feeding the aux
battery, when doing that, to keep the charge going only to the aux battery,
I'll probably pull the ground strap on the starting battery or add a switch
on that wire.