Fill em up before the holidays, men.
this post was submitted on 08 Dec 2025
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Reread your comment, and I guess that should have been more obvious. Anyway, my experience has been that the li-ion versions are less common. I bought a couple for a portable cassette player, which I thought would benefit from a very consistent voltage. I believe most of the other battery types aren’t a (near) perfect 1.5v either, but I think the li-ion is.
At the time I'm not sure how to make it clear I was referring to the new tech rechargeable AA batteries. Except this is a thread about batteries. So I didn't feel the need to spell it out.
I did want to mention the consistent 1.5v voltage. The li-ion cell is sepped down to 1.5v so it's maintained perfectly until the cell runs out of juice and cuts to 0.
Its great for sensitive electronics lifespan and performance.
The issue is many devices work fine with standard 1.5v batteries. They take the full range of down to 1.2v(?)
In fact they tolerate voltage drop off and have warnings when the voltage drops too far so you can replace them.
The pain with li-ion AA batteries is they never set off the low battery warning. They just straight up die. Due to the consistent 1.5v.