Battery Chargers for Caravans and Campervans
The recommend battery charger for caravans is the CTEK MXS 25 as it both a powerful and an efficient 12v battery charger and can solve a wide variety of caravan battery issues. As with many of CTEK chargers it offers a diagnosis setting to detail any potential battery problems. It also has a maintenance mode to rectify those issues and a temperature sensor to optimise charging. Furthermore, the charger has been classified (IP 44) for outdoor use.
The MXS 25 is suitable for all lead-acid batteries (WET, MF, Ca/Ca, AGM and GEL) and is rated for 220-24VAC, 50-60Hz.
An alternative is the MXT 5.0 which has a lower 5A maximum charging current, compared to 25 from the MXS 25 and an insulation class of IP65 and a battery capacity of 1.2-110Ah and 160Ah for maintenance compared to 40-500Ah.
Another alternative is the CTEK MXS 7 which has an optimised charging mode for cold days and another for charging demanding AGM batteries. Alternatively you could look at the Optimate 4 Dual Program.