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.


The internal resistance is much lower than that of an alkaline, so for some applications, a 1.2V NiMH will match or beat a 1.5V alkaline, but if you really need the extra 0.3V, then they’re really pants.
I bought rechargeable AA lithium batteries. They have a usbc slot on the positive end. Really handy. They do 1.5V.
Ah, portable fire hazard. Love it! :)