Battery drain while in storage with both disconnects " OFF"

[56Jeff]

For the 2nd or 3 time, we go back to the storage yard, and discover the battery is again drained enough NOT to operate landing gear. It's thought the Solar and frige do the draining, but we can not confirm that yet. Once backed in the door can not be opened up to inspect things. The disconnects should kill everything. I thought I read somewhere a while back there may be a wire landed incorrectly, but i can't find that post either. Anyone else experience this, or what am i missing? I rather learn what the issue is or what I am doing wrong over pulling battery cables off the RV. Somthing is bypassing the disconnects, I just don't know what or why.

OR if anyone has a wireing diagram for a 2025 29RL, that would help too.

 

[Oregon_Camper]

I don't think Alliance puts the 12v frig on the cutoff switch. Meaning the frig will stay on, even with the cutoff switch turned off.

I did a test on our 12v Norcold frig a while back and it was shocking by just how much power it used. It used over 113.4Ah in 25.5 hours…and then almost 163Ah after 36hrs. This was a controlled test, in our barn with zero solar charging. The post with images and more info can be found here

Not sure how solar you have, but for an example you can expect about 16 amps at 12 volts from a 300-watt panel at PEAK performance. Lets say you really get 12 amps and ~6 hours of perfect/direct sunlight. That puts you are ~72 amps being put int the battery bank per day, but the frig is using about 100 amp hours per day. This means most folks battery bank will be dead in a few days. You can install a disconnect off the NEG terminal and ALL power will finally be cut off or go inside and turn off the frig when storing the RV.

 

[56Jeff]

I Agree with you, I went back out & dinked with it, the Frig light ever goes out if we have 2 switches & shore power off. We store under a roof, so it gets zero light.

IF, I must, I will get a little solar trickle charger, and put it on the hitch which gets sun. I rather have a kill switch.

 

[Oregon_Camper]

I Agree with you, I went back out & dinked with it, the Frig light ever goes out if we have 2 switches & shore power off. We store under a roof, so it gets zero light.

IF, I must, I will get a little solar trickle charger, and put it on the hitch which gets sun. I rather have a kill switch.

A small solar panel will do nothing for you. Either add another disconnect switch off NEG terminal or power off frig inside RV.

 

[Midnight Rider]

Fridge should always be turned off with doors left ajar for circulation when rv is in storage. Even if your rig is tendered 24/7 like mine, fridge is off when not in use.

 

[Giant]

I’m having the same issue. My rig gets stored indoors with both battery and solar disconnects turned off AND the fridge turned off. After putting it away with a full 400ah battery, 2.5 weeks later it’s totally dead. Something besides the fridge is bypassing the disconnect, but I can’t figure out what the draw is. Could it be the solar charge controller? I put an isolator switch in my old rig that disconnected both the solar panels from the SCC, and the SCC from the battery. I have not investigated whether Alliance set my 295 up that way, but I suspect not.