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Why aren't there 1.5v AA rechargeable batteries? (lemmy.world)

submitted 2 days ago* (last edited 2 days ago) by BeatTakeshi@lemmy.world to c/asklemmy@lemmy.ml

35 comments fedilink hide all child comments

I bought a bunch of eneloop pro, but using them in connected thermostats is always displaying "low battery" even after just fully charged. This is when I discovered that they are actually 1.2V

It really came as a surprise, is there a catch? Are they only good for low power stuff like remote controls?

Edit: it seems they do exist in lithium. Question remains why are the NiMH only 1.2v and why are they the most widespread?

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[–] SHOW_ME_YOUR_ASSHOLE@lemm.ee 8 points 2 days ago (1 children)

I gave up on them as well. They'd always be dead after sitting in a drawer and a lot of devices I use AA or AAA batteries in don't like the lower voltage. The devices complain about the batteries being low and I could never tell if they were dead from lying around for too long or if the device thought they were dead just because of the low voltage.

[–] HubertManne@moist.catsweat.com 1 points 2 days ago (2 children)

yeah when things did not come with their own rechargable integrated battery it was a thing but the few I use at this point it just does not make sense to use rechargables.

[–] corsicanguppy@lemmy.ca 2 points 2 days ago

"I don't use enough rechargeables that it's okay use ephemeral junk cells"? Really?

[–] lud@lemm.ee 5 points 2 days ago (1 children)

For me it's the opposite.

I pretty much only use batteries for my wireless mouse and my Xbox controller. When the batteries die I just recharge them and put them back a few hours later.

[–] HubertManne@moist.catsweat.com 3 points 2 days ago

I feel like the only batteries I use are for the firealarm and remotes. Oh then I have oddball things with watch type batteries but as far as I know their are no rechargable equivalents.