Dual Battery Question

[nightfighter]

This ought to be good....killed both batteries by leaving switch on ALL for a week.....So going to use booster/charger to start, on Battery 1, then switch to ALL when started, in hopes of charging both.... Guess I'll find out when I go to restart, with booster handy, tomorrow, if that gives a good charge to both.
I've been starting engine on Batt 1, then switching to all...the above sounds like this is not good practice. Having to rethink my engineering from comm fishing and offshore race boats. I thought I had two deep cycles when I bought the boat....

[fishaholic18]

Originally Posted by nightfighter

This ought to be good....killed both batteries by leaving switch on ALL for a week.....So going to use booster/charger to start, on Battery 1, then switch to ALL when started, in hopes of charging both.... Guess I'll find out when I go to restart, with booster handy, tomorrow, if that gives a good charge to both.
I've been starting engine on Batt 1, then switching to all...the above sounds like this is not good practice. Having to rethink my engineering from comm fishing and offshore race boats. I thought I had two deep cycles when I bought the boat....

Ross, when motor if off and you're running electronics or what have you, switch to #2. That way you know #1 is isolated and will be fresh if you need it.