3s 10.8v 2.55ah 27.54Wh EVE 18650 Battery with BMS - $63/kWh

These batteries are checked for good voltage and come with a BMS. They were recovered from power window blinds/shades and test near full capacity.

Awesome value here. Especially since these packs have 2550mah EVE cells. You can parallel them together in the packs or just recover the cells.

Fully charged pack is 12.6v (4.2v/cell)
Fully discharged pack is 8.4v (2.8v/cell)
Recommended max charge rate 1a
Recommended max discharge rate 2a

The BMS appears to be a 2a rated BMS but that is not confirmed. It may be a 3a or 5a BMS. If you need a lower voltage battery like this, maybe for a 12v low power system, this would be a great deal at this price. The battery comes in a plastic case that snaps open easily too.

You can charge and discharge through the same red/black wires.

If you charge multiple packs to the same voltage you can parallel wire them together to make a larger battery. We have a lot of customers using these for their 12v projects especially things like ham radios. Also great to break down and recover the 2550mah cells for use in other projects, especially at this price and considering the cells still have most of their capacity.