+ Threaded Nut - Threaded Post 3.2v 6000mah 32700 Lifepo4

These cells were recovered in working condition and they all have good voltage.

Price is for one cell. 

The cells in this listing have the threaded nut on positive side and the threaded post on negative side as you can see in the photo. If you buy 4 of these, you can simply screw them together in series. Doesn't get any easier than this.

M4-0.7 thread. Nuts to match the threaded post are not included.

3.2v nominal
Fully charged 3.65v
Fully discharged 2.5v
Max charge (5a) 1c
Max discharge (15a) 3c