Going to install four batteries with switches<br />to switch pairs of them in and out. Keep pair<br />for motors and pair for electronics and two bait<br />wells. Want to be able to charge either pair from engines. Dual engines here.<br />Im going to also put two extra batteries in<br />center console for Laptop running Marine Nav<br />that should last all day. Im not going to have them wired to motors for charging, to hard to wire up. I will charge them back at shore at end of day.<br />Any ideas out there for four batteries with two<br />engines?