Is your Grand California not being used for a long time and is not connected to shore power? This can lead to problems after just a few days of downtime. Unfortunately, the starter battery discharges very quickly and after a few weeks it can be so deeply discharged that it can no longer be saved.

Does your Grand California have a solar panel? Then our Battery Maintainer is just the right gadget for you! It can be connected to the fuse box of your Grand California via plug & play in just two minutes. From then on, your starter battery will be automatically charged via the solar panel on the roof - a function that is not available as a factory feature!

As soon as the auxiliary battery reaches a charge level of 80%, the excess energy is used to constantly charge the starter battery. The maximum charging current is 3 A.

The Battery Maintainer can remain in the vehicle permanently – even during use or when the Grand California is connected to shore power. A one-time installation is sufficient!

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The function of the Battery Maintainer is compatible with the factory equipment of the Grand California. However, modifications to the electrical system, such as the installation of a lithium battery, can affect the correct function.

For example, if a lithium battery is installed, the starter battery is charged directly and independently of the charge level of the lithium battery.