Originally Posted by
DiscoMick
Some fridges do have settings which can be adjusted to turn off the fridge at a certain voltage to protect the battery. I don't know if that applies in Slunnie's case. The settings are usually adjustable, so maybe that feature could be turned off if running a lead crystal battery.
Personally, I have found an 80 watt panel mounted permanently to the roof rack to be quite adequate to keep the AGM in the back of the Defender sufficiently charged to cope with a 35 litre Evakool fridge. That includes camping on Straddie for a week at a time in summer. In winter it might be a bit marginal because of the fewer sunny hours.