The discharge cited above is pretty typical for LFP batteries. See my webpage for the measured discharge curves for the K2 LFP battery. The graph shows a very flat discharge followed by a sudden drop at the end of the cycle.

http://www.foxonecorp.com/index.php/...m-iron-battery

For anyone who is interested in a K2 battery, I will be in Cordele for the Region V South contest with a few K2's and chargers on hand.


Dave Springford
Fox One Corp