I have a couple of these and they have worked out fine. I have checked my batterys after the light turns green and they seem to stay at the voltage when the red light turned off. Even after forgetting and leaving batterys in charger overnight no over charging problems.
I mainly use IMR cells in 16340 - 18500 - 18650 - 26500 and all seem to end up at 4.16 - 4.18 volts no matter how long left in. I have never had a ending volts reading of higher than 4.18.
Sometimes after using a two cell light one battery will finish charging in 30 minutes and the second 2 hours? In a three cell maybe two will be done in 1 hours and the 3rd taking an additional hour. Ending voltages of all cells are the same. Batterys are fairly new and have never been run down low. What would cause this big charge time difference between batterys of the same age - entering the charger at the same voltage - ending up at the same?
I mainly use IMR cells in 16340 - 18500 - 18650 - 26500 and all seem to end up at 4.16 - 4.18 volts no matter how long left in. I have never had a ending volts reading of higher than 4.18.
Sometimes after using a two cell light one battery will finish charging in 30 minutes and the second 2 hours? In a three cell maybe two will be done in 1 hours and the 3rd taking an additional hour. Ending voltages of all cells are the same. Batterys are fairly new and have never been run down low. What would cause this big charge time difference between batterys of the same age - entering the charger at the same voltage - ending up at the same?