Monday, June 16, 2014

Vanagon's Auxiliary Battery Design

Here is how I set up my auxiliary battery, battery charger, and power inverter.


1. Starter and Aux batteries are connected via the Sure Power 100A battery separator (location: under driver seat) with 6 AWG cable.  Sure Power battery separator is grounded as specified in their manual, using a 10A inline fuse.

2. There are 80A fuses close to each + terminal to protect most of the 6 AWG wire from melting again on a voltage dump.

3. I bought a new 12V fuse block (location: under driver seat) for under the driver seat.  This prevents having to mess around more under the main Vanagon fuse panel when hooking up other 12V accessories in the future.

4. A 50 Amp circuit breaker (location: under driver seat) protects the whole 12V fuse block's accessories from complete melt down while each has their own fuse, of course.

5. ProSport 12 battery charger by ProMariner (location: under driver seat) plugs into the Sure Power battery separator and charges each from shore when available.

6. PowerBright 1100W Inverter (location: back of Weekender Jump Seat) is hooked up for AC outlets in van. The inverter's + cable is protected, as recommended by manufacturer, with a 100A mini ANL fuse.


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