When HN users recommended it
1 HN user recommended this in 2022, in 2 comments.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
Deleepow Rechargeable Lithium Batteries Auto Safety
Amazon's catalog no longer lists this product (checked 2026-11-02). The name comes from the link HN users posted.
I've been a bit puzzled by the 1.5 V lithium AA batteries I see on Amazon. They say they are a constant 1.5 V all the way from 100% charged to 0% charged.
With the battery presenting a constant voltage, wouldn't that make battery level displays useless? They rely on the voltage declining as the battery discharges. With a constant 1.5 V battery your device is going to say the battery is full right up until it suddenly stops.
I'd expect that to get very annoying.
Edit: I mean the 1.5 V lithium rechargeable AA batteries, like these: https://www.amazon.com/Deleepow-Rechargeable-Lithium-Batteri...
There are now 1.5 V lithium rechargeable AAs. Here's a typical example [1], and there are a ton of others.
I am almost certain they are implemented as 3.7 V lithium rechargeable batteries combined with a buck converter to get the 1.5 V output.
I think they are relatively new. I don't recall noticing them a few years ago, which was the last time I was looking for rechargeable AA batteries.
[1] https://www.amazon.com/Deleepow-Rechargeable-Lithium-Batteri...