3DPrinting

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3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.

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Tired of expensive disposable batteries and rechargeable AA suck. So I made a 10k mAh pack for my deadbolt. (sh.itjust.works)

submitted 1 month ago* (last edited 1 month ago) by ThePantser@sh.itjust.works to c/3dprinting@lemmy.world

196 comments fedilink hide all child comments

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.

(page 3) 50 comments

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[–] NarrativeBear@lemmy.world 3 points 1 month ago* (last edited 1 month ago)

This is great, so far I have only seen hardwired options, never seen someone do a expanded battery mod for their smart lock.

Battery eliminators are the way I hardwired my smart locks. You can find these on amazon in various battery sizes and combinations. Combining this with a Voltmeter Adjustable Boost Modul, doing some wiring, and then plugging all this into the wall means no battery changes every 3-4 months.

Here's a video of something similar to my setup.

https://www.youtube.com/watch?v=A4GRCACR0sM

[–] discocactus@lemmy.world 3 points 1 month ago

Ok this is sick. Gives me hope for my garbage $400 "smart" dog door...

[–] roofuskit@lemmy.world 3 points 1 month ago (2 children)

Ostations rechargeable lithium AAs are freaking great for mine.

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[–] RememberTheApollo_@lemmy.world 2 points 1 month ago* (last edited 1 month ago)

I switched to rechargeable 3 years ago. I’m not trying to shill for a specific brand, but EBL has worked great and they’ve paid for themselves vs the disposable AA and AAA batteries. They last 4-6 weeks in door locks depending on use, the one in direct sun doesn’t last as long. Haven’t bought any alkaline AA/AAA in years.

YMMV.

[–] femtek@lemmy.blahaj.zone 2 points 1 month ago

It's why I'm looking at ubiquity locks and seeing if I can hardware a residential door.

[–] gustavodinosaurio@lemmy.zip 2 points 1 month ago* (last edited 1 month ago)

I dont love the gazillion batteries my lock uses... but it's been around a year since it was installed and it has about 50% battery left. I don't have it connected to the internet. I love replacing AAs and AAAs for rechargable lipos but I KNOW my wife won't approve, haha.

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