Joffa
New Member
- Mar 10, 2024
- 1
- Boat Info
- 2009 Searay 315 Sundowner
- Engines
- Twin Mercruiser 4.3 mpi
Hi all, looking for some help. Have a 2009 280 Sundancer with twin 4.3 mpi. There are 2 battery isolators which have 3 positions off, 1 & 2. Should the 1 position on each only be used for running house battery’s for fridge, lights etc when overnighting engines off etc? I’m running 2 house battery’s and 2 crank batterys….