Thought I knew - now I'm confused

bobcouch wrote:
When I got my 5th wheel back from the shop, I thought the battery was toast. It had several dry cells and read 2.3 volts post to post. Long story short, after adding water and charging for three full days it was back up to 12.9. Don't know how long it will last, but OK for now.
That leads to my question.
When I reinstalled the battery, I found that both the lift motor and the motor for the slides work regardless of the position of the battery bypass switch.
So - what does it actually do? Where is it actually located in the circuit?
I've always assumed that ON meant the battery was connected and OFF meant it was not. Now I'm not sure of anything. :h

That's not good for any battery. Have it load tested as voltage doesn't tell the complete story.

A switch at or near the battery post will disconnect everything. But you may still have 12V from the charger or solar.

The typical bypass switch is set up to turn off lights etc when you leave. But hopefully not the refer.