When HN users recommended it
1 HN user recommended this in 2022, in one comment.
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.
AA Batteries ANVOW Rechargeable Capacity
Amazon's catalog no longer lists this product (checked 2026-11-02). The name comes from the link HN users posted.
something that didn't exist in 2016 and does now, are AA batteries that are composed of an internal lithium ion cell, a DC-DC converter for 1.5VDC output to the end terminals, and internal 5V-USB to li-ion charge controller circuitry.
With a USB port literally built into the body of the battery. They're more expensive, but can pay for themselves...
https://www.amazon.com/AA-Batteries-ANVOW-Rechargeable-Capac...
there are lots of other models if you search for "AA battery lithium ion USB"
I would recommend these over anything that is NiMH based (memory effect) or needs a proprietary charger.