What kind of battery is this?

[titel]

I came across some batteries and I don't know any specs for them.

They seem to be some kind of LiFePO cells built in a 24V battery with an IMG BMS but they carry absolutely no branding or labeling.

https://imgur.com/VgjzE3B
https://imgur.com/2uhxay5

Any idea what they were used for? Or capacity?

Thanks!

 

[spinningmagnets]

The details of the BMS circuit-board and series bus-connectors indicate it is seven cells, so it isn't LiFePO4, or LTO, or lead-acid.

This leaves the common lithium-based NCA / NCM chemistries. If the pack was cut open, it could be cylindrical cells in series and parallel, or it could be flat foil packets. The company that made the cells and the company that assembled the battery pack are likely two different companies.

 

[eee291]

They look very similar to my Samsung SDI 28Ah Cells.

The shape of the Vent gives it away.

99% sure that they are NCM chemistry so don't charge over 4.15V per Cell.