Will Charging While Driving Drain My Starter Battery?

This is one of the biggest concerns for campervan and motorhome owners, and the good news is, it’s not something you need to worry about.

Both DC-DC chargers and split charge relays are designed to only operate when your engine is running. They detect when the alternator is active and only then allow power to flow to your leisure battery.

As soon as you switch the engine off, the connection is automatically cut. This means your starter battery is protected, so you’ll always have enough power to start your vehicle.