3 Pack Parts/Repair Power Sonic 12.8v 45ah PSL-12450

These are lifepo4 12.8v 45ah batteries. You get 3 batteries for this price. All of the batteries likely have 1 bad row of cells inside or a bad BMS. Either way you will be able to get a lot of good cells out of these, reuse the case, and likely reuse some or all of the BMS units.

When you open the packs and test the voltage of the cell groups you will know if one of the rows of cells is lower than the rest that was the problem and the BMS is OK. If all the cells are balanced then the BMS was the problem.

As you can see in the 2nd photo these are awesome cell packs using 18650 lifepo4 cells and as you can see in the 3rd photo you can cut the lid at the seam with a dremel. The whole battery pack will then slide right out. Also this pack uses JST connectors for the balance leads so they should plug right into most BMS units.