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Question on Dual Batteries
I currently have a 24.5 ft S2 sloop with an outboard, I currently have one battery but would like to install a second one so that if I take an overnite cruise I will have plenty of juice for my return sail. I have purchased another main switch that has three positions, 1, 2 and both. Currently I have a battery charger that only charges one battery.
Can anyone share their knowledge about the best way to hook up a second battery the most efficiently. I understand I probably will also need a new battery charger that permits two banks to be charged. I am unsure of how to wire in the second battery and whaat other components I need to install (some type of diode)to prevent an inoportune battery drain.
Any help or suggestions would be appreciated.