We’re getting ready to go away and Woody checks the caravan batteries only to discover that they aren’t charging from the 240volt power lead. He plugs in the portable solar panels and poof, they go up in a puff of smoke.
The mobile caravan repairman arrives and finds that the solar panels need a new regulator but it’s probably time that they were replaced anyway. The batteries? Well they are a much simpler problem, the plug wasn’t connected properly!