Solar Panel Charging: How To Regulate The Charge?

[Dave The Hat]

Hi Guys,

So on our overland truck we want to fit a solar panel. It will not be permanently attached to the roof as we go through alot of dense jungle and worries it will get damaged. We will hook it up whilst stationary and camping via a plug.

Question: We pull into camp with leisure batteries fully charged. Plug in the solar panel charger.

How do I ensure that this solar charger does not overcharge the batteries? For instance, the split charger we have cuts the charge to the batteries when it senses they are at maximum charge (when driving).

But with the solar panel they will be constatly pumping in energy, and I'm worried about it overcharging the batteries. What is the best solution for ensuring this doesn't happen? Is there a simple way to cut the charge without having to constantly check the battery voltage and manually having to unplug the thing every few hours?

Thanks for any advise.

David