this post was submitted on 24 Sep 2026
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Eneloops would only last about 3 weeks. And disposable last 2 months. This door is used a lot and since it has Zwave and a door open sensor it sends info on every open.

Bonus, since it can handle the lipo AA batteries that put out 1.8v and it gives the motor more oomph I made the battery pack give 7.2v and it never sticks anymore.

This is a garage-door so its not critical access but is used a lot.

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[–] BevsDad@lemmy.ca 3 points 1 month ago

That would be all 12v devices that run 24/7. So without the fridge compressor, water desalinator, 120v cooking appliances (when I have a surplus of solar and don't use propane) and the hot water tank (although during the winter I heat water using a 4w pump and heat exchanger on my wood stove). I guess my work laptop isn't included in there but I do my computing on a VPS since anything but a low power laptop puts a noticeable drain on my power reserves.

I run off 660w of solar so that's why I'm so limited. Network runs off a portable open-wrt router plus a LTE hotspot (5G sucks at sea level in my experience) and most smart things are done on my Victron Cerbo GX.

During the summer I generate about 53kW/month and use about 74kW/month. The difference comes from a small generator and the times I run my diesel engine to get around and the 70A alternator charges the batteries.

So my average is ~100w all in.