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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)
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.
In most cases when something is convenient you're giving something up for that convenience.
And that something ironically at times can be convenience.
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