Charging With a Three Battery System Feb 10, 2017
How to properly use your three battery system.
Why Use A Three Battery System?
Shown here is a typical three battery system. You can see that the first bank of the NOCO GEN connects to two 6V deep-cycle batteries hooked up in series. The 12-volt battery is charged through its own bank. A great example to explain the use of this scenario would be on a watercraft. The 12-volt battery is used to start the boat’s engine, and power its accessories such as lights and radar.
Connecting The 6-Volt Deep-Cycle Batteries
Connect the NOCO GEN negative lead to the negative terminal of battery 1. Connect the GEN positive lead to the positive terminal of battery 2. This 6V + 6V series connection will produce 12-volts, but amp hours will remain the same. This system is most often used to power trolling motors.
Connecting the 12-Volt Starter Battery
Connecting the NOCO GEN’s negative lead to the negative terminal of the 12-volt battery, and the positive lead to the positive terminal. This is the starter battery system, and it used to power the vehicle's start-up and native accessories.
Two Separate 12-Volt Banks
By successfully hooking up the three batteries to the GEN charger, you have created a permanent charging solution for your vehicle or generator’s batteries. As the GEN charges each bank separately, it is important to note that each system will produce only 12-volts.