We use BEP marines' VSR system - it's just a voltage sensitive relay that connects the batteries up when the voltage reaches a pre-set number, it then charges both batteries. Once the engine is off and no longer charging it separates the batteries so that one side cannot run down the other - the best bit is that it's automatic! They also do a pack that includes the appropriate battery on/off switches as well.
Originally Posted by Zippy
When a boat looks that good who needs tubes!!!