Class Campers Forums!

I'm finding my leisure battery drains ridiculously quickly when not being used?! When my bus is parked up the only thing actively using current from it is the clock on the car stereo, but after 2-3 days, the battery will be more or less flat. I'm thinking that either the battery won't hold a charge for long or something is draining it that I don't know about.

Any ideas on how I should try and diagnose?

If you disconnect it and it still goes flat it is not holding a charge.
A auto electrician will take about 2 mins to tell if there is a drain-probably a bit longer to source fault.

Yes I agree

You need to check the battery first and then get an electrinain to check for a fault