General > General Technical Chat

USB chargeable batteries

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Alex Eisenhut:
Anybody ever used these?

https://www.ebay.ca/itm/AAA-Batteries-USB-Rechargeable-Polymer-400mAh-1-5V-Battery-ZNTER-ZNT7/222806863381?hash=item33e052ee15:g:FbgAAOSwBDlazyRl

Seems like they would solve some problems related to low terminal voltage of NiMH cells and also eliminate chargers.

There has to be a catch?

Gyro:

--- Quote from: Alex Eisenhut on July 26, 2020, 09:46:06 pm ---There has to be a catch?

--- End quote ---

400mAh capacity and price are the two that I can see.

Lord of nothing:
 ??? When I remember right what the teach us at School its impossible to recharge batteries?!
Thats why the Accu was invented back then?!

David Hess:
It might not be a terrible idea for some applications but it sacrifices capacity, discharge rate, and low cost.  USB rechargeable NiMH cells have been around for years.

amyk:
BigClive did a teardown on the 9V version:

...and more recently, a related product that is oddly reminiscent of the Batteriser-

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