I'm very satisfied with the charger. In particular, the capacity measurement function and the adjustable charge / discharge current I find very good. The charger runs absolutely silent (other LiIon battery chargers I had partly unpleasant Fiep-noise). For AAA batteries, I would still like to see a lower charge current, since I bought this machine but primarily for 18650 batteries, there is no point deduction. Charging bays are set individually monitored and controlled (charge / discharge function, all 4 slots simultaneously to 1A per well), but you can the charge current only to all shafts uniform. 18650 batteries are well charged, for AA batteries I can make no statement (far too rarely loaded in the charger). The charging compartments are for 18650 batteries very close to each other, but I accept, because then the device while traveling is nice compact.
Poor, I find that you can not turn off the pilot tone, which is the end of a charge or discharge very loud.
Manual in English, German does not exist. Operation with only one button is very simple. Press briefly to switch the charge / discharge between 0.5 and 1A, press and hold to switch from pure loading into the charge-discharge capacity measurement with shop mode.
The final charge voltage at LiIon 18650 corresponds exactly to my Xtar charger (4,22V), characteristic according to the manufacturer CC / CV.
