12.8v 40ah 512wh Lifepo4 Module w/ 4x 3.2v 40ah Prismatic

We have a couple modules like this in 4s configuration. The cells are 3.2v 40ah Lifepo4 cells. 12.8v 40ah 512wh. You can easily add a 4s BMS to this. The cells are all balanced however these are used modules so they likely have some degradation. All cells are around the same voltage in these modules and we only have couple left at the moment.

14.5 lbs

7.75" x 5" x 7" tall

Cells are GBS 40ah. Specs are in the 5th photo.