Spaceships are set up with a smart battery system. This allows you to operate the fridge while the engine is not running. It protects the main battery. It's like having a second car battery. The battery won't go flat as the system will make sure there's always a little bit of power left to start the engine. It's a closed system, no plugs, no connections for outside items or devices. It charges when you are driving and it powers the internal items when the engine isn't running.

This means you do not have to pay for powered sites like you would in an ordinary campervan or motorhome to charge your vehicle, saving you money and enabling you to go further off the beaten track. Battery life can be up to 24 hours depending on which items you are using. The fridge uses the majority of the power.

Self-contained campervans with a solar panel roof

The smart battery of these campervans will last even longer. However, it will all depend on on where you park it and what the weather is like. Tip: set the fridge on setting 2 to 3 for maximum use of the battery charge while keeping your food cool. In our tests, the fridge was on setting 5 and it took about 3 to 4 days of being stationary - no driving - for the battery to be drained to the minimum level.