Re: battery perko switch
Say what????? If you have the switch set to BOTH and are monitoring the voltage with the locator, you are looking at a fairly discharged PAIR of batteries. In the BOTH position both will charge and both are being used to power stuff. When you are trolling, switch to the troller battery -- not BOTH. See what I mean about understanding what the switch can and cannot do for you. Whatever battery/batteries you have selected is what is being charged, and what is also powering all the stuff. Every item on your boat except the bilge pump should be connected to the COM terminal, not the individual batteries or you defeat the purpose of the switch.