Battery drain

[nashed21]

I’m new to this...we have a montana 2021 legacy 3761 FL....so here is my question....when i am plugged into shore power where we store our montana. If power has been disrupted for more than a few hours i note a power drain on my batteries thats taking me from full charge to 11.6 volts, we keep our fridge on, but this seems as if its draining the battery too quickly. Any ideas?
btw everything is turned off EXCEPT the fridge. I have been trying to figure it out, w/out taking it for service....would luv to have an idea so i can get my hubby some ideas...

 

[Neal]

Welcome @nashed21. Great to have you join us. It sounds like you may have a bad battery. The forum below is good for questions like this.

RV Electrical, Solar, Batteries, Going Green

Discussion of the electrical systems in RV's including solar, inverters, converters, batteries...

rvforums.com