5 stars for the unit, but only 4 stars for the price

I bought the CM 420 on 14.03.2015 and started doing my same old ~ 30 pieces AA to load, 50% had only a voltage of 0.2-0.6 V, the remaining 0.8-1,25Volt depending Ah after the device has automatic the AA`s. loaded, while the batteries were never warmer than 45 degrees! For testing, I have loaded batteries with 1.6 to 2.2 Ah with 2000 mAh, while they were also not warmer than 50 degrees! None of the old battery was faulty after charging, the battery had to short-circuit measurements more than 4 amps. Most AA, s goods from China without brand name, one of them had zero volts, but this was after refreshing back with 1.4Volt and 3.5 Ah ok. As I stated on the device also automatic. from.
So far, I find the Voltcraft 420 as very good buy