Topic: How do you start a unit at -20 with lithium batteries  (Read 5358 times) previous topic - next topic

So my 2025 rig with lithium batteries in the coach is in cold storage. If I want to start using the rig at -20, how do I go about turning on the coach if the batteries won’t work or take a charge at that temperature. The generator needs the batteries to start. The ford truck will not be able to send power to the lithium batteries. I wouldn’t think the battery heating system would work.

You really, in a short couple, sentences asked for a lot of information and people could go on and on, but the most important thing is keep the batteries where they'll be above freezing. And we do a lot of winter camping, so I put a little 50 W heater underneath our steps. That's controlled by a thermostat that turns on to keep the battery warm. And I also have a Mat underneath it. I love winter camping in regarding the fridge. I would definitely get a little 2 fan system that goes on the blades inside the fridge. So that it moves the air around, otherwise it takes a really long time to turn it on and cool it down. We also put frozen bottles of water. Right below the coils in the fridge on the top. Shelf, and that generates some coolness also in there. But our refrigerator does not have a problem. Staying at 32 to 34°.

We tried to heat our camphor in the winter with electric heat. When we're plugged in most often, and I have 2 built-in 500 W and 1200 W electric heaters in the front and back, and then we also have the furnace as backup and the heat pump is back up. And I also put An extra lp furnace in the back bedroom. So if the front one ever goes out, we've got heat in the back. I'd love to talk to you more about this. Reach out to me if you want to go more in depth at what we did.