Harvey51 wrote:
X2 on the previous post by PNichols.
You can just start the engine and check the voltage on engine and house battery with a multimeter. A loss of even several tenths of a volt diminishes the charging effectiveness. I found voltage losses in a connector, and a solder joint on our C. And changing the wiring so alternator current goes directly to the house battery rather than roundabout through the battery disconnect switch at the door. Fixing those made quite a difference.
Harvey, when you ran a new wire directly from the alternator to the battery did you remove the existing wiring, disconnect it at the alternator or just leave it in place for two charging paths?