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Tired of expensive disposable batteries and rechargeable AA suck. So I made a 10k mAh pack for my deadbolt. (thelemmy.club)
submitted 1 day ago* by to c/3dprinting@lemmy.world
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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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[–] 3 points 17 hours ago

yes, I have to change the batteries once a year

and in my case because my ex chose the wrong lock and I can't be bothered to pay to swap it out, I also have to deal with a touchscreen instead of buttons

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