K2 3.2v 41ah Lifepo4

Just 1 of these left at the moment. This one comes with a complete printout of the test and this one tested between 90-100% capacity.

If you are in the car audio world these are beast batteries. Check the data sheet, they can pulse 2400 amps. That is 60c discharge for 2 seconds. Or almost 17c (675a) continuous. Other sites have these new for around $260 but we have this one in stock at just $50. It is used but has been tested professionally. Came out of a military application.

Spec sheet is in the 2nd photo. I wish we had more.