Battery charging on CL

We’ve gone over 4 weeks without EHU, topped up by the manufacturer’s roof mounted 20W solar panel and our own portable 100W one. But we’ve also failed, requiring a battery swap. It depends on the weather, the state of your battery, whether you rotate your portable solar panel to face the sun two or three times a day, and of course your profligacy with electricity. We’ve intercepted the caravan fridge wiring feed from the car, allowing us to top up a second battery in the rear footwell, while motoring without the van on tow. Solar panels are less than half the cost of when we bought ours, but they are bulky and heavy. I’m tempted to believe that another 100W panel would solve all problems, but in every case I’d take a spare battery. Note, some fridges have AA battery backups to their control circuitry, which will prevent your fridge stopping while you fix a power outage.