The battery isolator is a device that allows the cars alternator to recharge the auxiliary battery while protecting the cars starting battery from discharging if these batteries are simply linked together you run the very real risk of draining them both to a level that you can not start the engine and there are many other reasons why you. Most boats with dual battery systems use one starting battery and one deep cycle battery.
Dual Cab Cruiser Stealth Dual Battery System Landcruiser 70
How to run dual batteries. Connecting two car batteries to your vehicles alternator while adding in an isolator of some sort to keep the batteries separate isolated. There are plenty of dual battery setups available including the redarc dual battery system. How to set up dual batteries on any vehicle so that you always have a backup battery in case you are stranded on a trail or desert 4 wheel and offroad magazine. Make sure the dual battery switch is designed for two batteries some are onoff switches and will. Pick a location for the battery switch on. How to install a marine dual battery setup for your boat.
You could just hook up both batteries positive leads together but then you have no isolation abilities and are really no better off than just having a bigger single battery. A dual battery monitor which allows the user to check voltage levels on both batteries just by checking an in cabin read out is also key to maintaining convenient awareness and electronic control over the dual battery system at all times. Dual purpose batteries work well in some applications and are a good compromise because they tolerate deep discharges that would ruin a typical starting battery. Install the second battery to the boat. Since they have lower storage capacity than comparably sized deep cycles we recommend them. Pick the best battery switch for your boat.
A dual battery with an isolator for those who dont know is pretty much what it sounds like.
Gallery of How To Run Dual Batteries
