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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[–] hildegarde@lemmy.blahaj.zone 4 points 41 minutes ago (1 children)

Why not a cable for power? Does the door need to be able to go somewhere that doesn't have electricity?

[–] southsamurai@sh.itjust.works 0 points 36 minutes ago

May be an access issue. Enough distance and running a cable becomes a pain in the ass in a way that can make this more appealing. It's why I don't have an Ethernet cable in one room of my house; I'd have to climb either across the attic, or in the crawlspace, and neither are gonna happen voluntarily. So I deal with a crappy wifi dongle for the ancient PC in that room instead.

[–] Melobol@lemmy.ml 1 points 1 hour ago

I would love to see this using disposable vape batteries. That would make it a nice 'circle of life'.

[–] Imgonnatrythis@sh.itjust.works 6 points 2 hours ago

Oof. My Yale has a hub and the AAs last 9-12months.

[–] YiddishMcSquidish@lemmy.today 21 points 4 hours ago (2 children)

KmAhs

Mfer do you mean Ahs?

[–] atzanteol@sh.itjust.works 9 points 2 hours ago (1 children)
[–] treesapx@lemmy.world 2 points 1 hour ago

Different batteries use different measurement standards.

[–] Therefore@lemmy.world 18 points 3 hours ago* (last edited 3 hours ago) (1 children)
[–] YiddishMcSquidish@lemmy.today 2 points 1 hour ago

Of course! How could I have been so stupid...🤦‍♂️

[–] Provolone@lemmy.zip 6 points 3 hours ago

Which lock are you using?

Been looking at Schlage for a nice local only Zwave / ZigBee lock but I've seen a few recent reviews saying how their quality went down the drain. How the PCB is corroding from just moisture in the air... So I'm open to recommendations.

[–] violentfart@lemmy.world 27 points 6 hours ago (3 children)

Well done, and I’m surprised at all the technophobes in a 3d printing community.

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

I mean, there has always been a correlation between being technical (as in profession/skills) and being paranoid about technology. When you are in the field, you get a window into how ignorant most of the tech products are security-wise for example. And I guess a good portion of 3d printing people - especially the ones on lemmy - are technical (as in profession/skills), not/not only tech lovers.

[–] ThePantser@sh.itjust.works 12 points 6 hours ago

Yea its weird. I think its the AI and Data center hate. I am as local as I can be for my stuff and AI free. 99% of my stuff is Home Assistant, ESPhome, and Zigwave.

[–] BevsDad@lemmy.ca 2 points 4 hours ago

So long as it has a physical backup and can stay on my network I'm happy. I also need low power draw to stay bellow my 20w idle power budget but that's a me problem.

If anyone has a vertically mounted stainless steel option with a keypad to recommend I'm all ears!

[–] discocactus@lemmy.world 3 points 4 hours ago

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

[–] breadsmasher@lemmy.world 32 points 7 hours ago* (last edited 7 hours ago) (9 children)

imagine having a door/lock that requires power..

[–] Joelk111@lemmy.world 2 points 2 hours ago (1 children)

I was super anti smart locks until I left my garage open and doors unlocked for an entire weekend because I'm forgetful. With smart doors and locks that doesn't happen and, possibly a controversial take, doors being closed and locked by reputable smart devices is more secure than them standing open. Most crimes are those of opportunity, and a thief is just gonna try the door and break a window when it doesn't open if they're willing to go that far.

[–] yermaw@sh.itjust.works 1 points 59 minutes ago

I came into this thread to scoff at the idea of needing batteries for a lock.

I'm coming round to the idea...

[–] bizarroland@lemmy.world 18 points 6 hours ago* (last edited 6 hours ago) (4 children)

Imagine being locked out of your house because you forgot to bring keys with you.

Like, I'm sorry if you disagree with this, but holy shit, having electric locks on your doors where you can get into your house based off a fingerprint or a code is a fucking game changer.

I have two on my doors, one on the front, one on the back, and I installed them at a week or two apart, so if one of them starts complaining that the battery is low, the other one's still good. If one of them goes dead while I'm on vacation, the other one's good.

Not to mention that you can unlock the door from your phone in case somebody comes over unexpectedly, or if you have a friend coming in from out of town and you're going to be at work when they arrive, you can create a code for them to unlock your front door and come in while you're not even there.

Plus they still have key locks that I can use if the batteries are completely dead and they can be powered by a 9 volt battery in case I don't have the key with me.

They're freaking awesome and I am glad they exist.

[–] mrmisses@lemmy.world 19 points 5 hours ago* (last edited 5 hours ago) (2 children)

You can't lock yourself out of the house with a deadbolt, they require the key to lock

[–] sem@piefed.blahaj.zone 2 points 4 hours ago

You can also leave without a key and then your roommate also leaves and locks the door.

[–] SchmidtGenetics@lemmy.world 5 points 5 hours ago (1 children)

But you can lock the handle and leave without keys.

You can leave the handle unlocked, and just use the deadbolt this way.

[–] Ludicrous0251@piefed.zip 4 points 3 hours ago

You can leave the handle unlocked, and just use the deadbolt this way.

This is how I have locked my house for the last like 100 years without a smart deadbolt.

[–] DeathsEmbrace@lemmy.world 4 points 4 hours ago (2 children)

Yeah and it makes it pathetically easy to break into your house. Just search online for some of these “security locks using fingerprints”. Its even easier to break into sometimes than a regular shitty lock.

[–] _stranger_@lemmy.world 3 points 3 hours ago (1 children)

Unless you've got a steel reinforced frame bolted into the foundation backing your steel reinforced door, a strong leg and a sturdy boot will get through practically anything you can buy at a hardware store, and a crowbar will take care of the rest.

[–] Truscape@lemmy.blahaj.zone 1 points 4 minutes ago

Electronic mechanisms are more prone to people being able to be able to access areas without evidence of tampering using simple scripts from the internet, whereas lockpicking is not employed by most burglars. (And as stated previously, level of commitment is greater when destruction is involved, which deters most.)

Having a noisy break-in also means you are more capable of responding if the need arises.

If all you care about is deterrence, just own a shotgun and have a loud dog at home.

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[–] WalrusDragonOnABike@reddthat.com 10 points 6 hours ago (1 children)

Imagine not having a lockpick kit on you to just let yourself in

Imagine having keys so you can let yourself in when you forget your lockpick kit.

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[–] NOT_RICK@lemmy.world 20 points 7 hours ago (1 children)

It’s pretty convenient actually

[–] mrmisses@lemmy.world 5 points 6 hours ago (1 children)
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[–] Brkdncr@lemmy.world 13 points 6 hours ago

I have a similar one and can still use a key…

[–] ThePantser@sh.itjust.works 15 points 7 hours ago (1 children)

Yea, it is nice being able to check if you locked the door from bed. Definition of luxury, but I didn't buy this one it was a gift.

[–] DonutsRMeh@lemmy.world 6 points 5 hours ago

Ok, you get a pass from my “or just use a damn normal lock” dad’s finger wagging 😂

[–] SchmidtGenetics@lemmy.world 11 points 7 hours ago* (last edited 6 hours ago)

I can head out for a walk without bringing my keys with me. Kids can open the door while I’m grabbing the groceries or other stuff. Can provide a temporary code for someone to check on it while I’m out. Family can have a code for emergencies, or if they need to watch the kids.

It’s hella convenient actually.

[–] TragicNotCute@lemmy.world 7 points 6 hours ago

It’s the best. We have auto locking deadbolts that lock themselves after a period of time. Each family member has their own code to get in and it has a normal key hole if you want.

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[–] NekoKoneko@lemmy.world 8 points 6 hours ago (5 children)

Rechargeable li-ion batteries are the game changer for me.

All the fancy expensive rechargeable including Eneloop would have a 30+% failure rate every recharge cycle and I wasted so much money. I have 16 li-ion AAs that I rotate including in my door locks and they have gone through multiple recharge cycles with no failures.

[–] cmnybo@discuss.tchncs.de 9 points 5 hours ago (1 children)

If your Eneloops are failing that much, they are either being over discharged or something is wrong with your charger.

All of my Eneloops have been much more reliable than lithium ion batteries.

[–] NekoKoneko@lemmy.world 2 points 4 hours ago (1 children)

I may be the unluckiest person in the world, but I've bought expensive official Eneloops multiple times and used multiple chargers and just gave up. Sure, it may be because I'm doing something wrong, but I certainly couldn't figure out what that may be.

[–] scrion@lemmy.world 3 points 2 hours ago

Where did you buy them though? First thing I thought of was fakes, which are sold pretty much everywhere online.

I know you said official, but did you actually check that?

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[–] GregorGizeh@lemmy.zip 10 points 7 hours ago* (last edited 7 hours ago) (3 children)

I am confused, is this not possible to wire properly to a power supply? even though this has increased capacity it would still always be in the back of my head that my door might run out of power 🤔

[–] LifeInMultipleChoice@lemmy.world 11 points 7 hours ago* (last edited 7 hours ago) (5 children)

This did make me realize I've never seen a deadbolt reversed. As in the door having just a metal framed hole, and the bolt come out of the frame. Seems like the easiest way you would be able to run power to it. (Maybe not the most structurally sound, probably depends on the door material)

[–] BillyClark@piefed.social 1 points 1 hour ago

I guess if you had french doors and opened the "wrong" door, it would be similar to a reversed deadbolt.

[–] nezrock@lemmy.dbzer0.com 3 points 4 hours ago (1 children)

This is how electronic locks work in prisons and jails. Motor in the doorframe with a bolt, power on to unlock, fails secure in the event of a power outage.

[–] HansGruber@sh.itjust.works 1 points 56 minutes ago

In an event of a fire that sounds quite uncomfortable. On the other hand my knowledge about prisons isn't very profound.

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[–] ThePantser@sh.itjust.works 10 points 7 hours ago
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