I bought the charger due to the specified property of the auto power-off / changeover to trickle charging when it reaches full capacity. It is this shutdown worked but not from the very beginning. The device turned rarely at full battery (approx 1,40V- 1.44V) to trickle charge, is charged with matter which charging current. My batteries (Eneloop, at the same time re-ordered) are loaded regularly 1.5V. And probably even more if I did not finish the loading process itself manually.