4 Pack - A123 3.2v 31ah LifePo4 cells
For this price you get 4 cells in a custom box. If you want 16 cells for example just order 4 of these boxes.
These batteries have never been cycled. They were recovered from overstock electric vehicle modules and they are testing like new. If the tabs were cut short we had the tabs laser welded to extend them. These are super easy to assemble and one of the best Lifepo4 batteries out there.
A123 batteries are one of the best brands for energy density and C rating. Specs for the cells are in the 3rd photo. These are 3000 cycle rated and not grade B or reject cells being marketed as new. Every cell is tested, balanced, and ready to build into packs. Easily connected these cells with a hole punch and nuts and bolts. Fold the tabs over one time to get a thicker connection.