In this episode we bring back Rick England, KC6UFT, the designer of the 18650 battery tester.  In a previous episode, Rick told us all about the need to test 18650, and other batteries, under load to determine their health.  Rick has refined his tester design and shares his experiences and learnings with us on this episode.  You will learn all about the proper way to test these popular lithium batteries and plans for making the testers available.