Hooking in to the Sprinter’s charging system

2 AWG cable and a special cable cutter

It’s not a good idea to use the van’s starter battery to power the electrical items in your conversion. It’s too easy to leave yourself with a flat battery and no way to start the engine. The van’s charging system can be used to help charge a second battery that you isolate from the starter battery, but there are some constraints. If you’re trying to charge a large house battery, you may need some additional equipment.

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