Testing leisure battery circuits

[walty666]

Hi,
Limited electrical knowledge here. How's best to test that certain items (lights, rear 12V socket, etc) run off the leisure battery and not the starter battery. I tried disconnecting the starter battery and testing them but nothing worked at all?
Cheers
Ross

[dave_aber]

There's your answer then.

Without having done the re-wiring yourself, the only practical way is to disconnect either battery and see what still works. Make sure the L/B is charged though, and don't run the engine whilst you are checking.

[walty666]

Oh right. Simple as that then. Either no charge or not doing what it should be doing. Will investigate further...
Thanks!