Originally Posted by rowiebowie
Probably the damage is done and nothing more bad happened. But lesson learned about series vs parallel.
As long as you check everything that is connected for function and they work, you should be OK. This would include all the TV and radio stuff that might be hooked up, device chargers, shore power charger, even the charging separator from the engine charging, ceiling fan. There are a lot of 12v things in a class b.
Good luck, hope you come out well.