Jay R
Flashlight Enthusiast
Sorry Klarus, love your lights but I bought 4 of your 16340UR70 cells from lightmalls. One was dead on arrival and another didn't survive the first charge. That's a pretty serious failure rate. Suggest you check the circuitry of the charge board as I pulled the circuit off the top of one and the cell was fine so it must be the boards that are stuffed.
Below, one charging, one charged, one dead and one with the dead board removed and re-covered just to make it useable.
Below, one charging, one charged, one dead and one with the dead board removed and re-covered just to make it useable.