This charger is perfect: it recharges at 200, 350 or 700mAh, it unloads half of these values, and then combines the discharge load at the desired speed, calculates the actual battery capacity (this allows you to sort the good and bad), is testing the batteries and "touting" the old batteries by performing several cycles of discharge / recharge complete. All this individually! Once charged, the battery can stay with a slight trickle charge. Overheating protection, compactness, this charger combines the good points! I'm still looking fault ... Oh, if it exists in the Voltcraft, especially among C---ad.fr available, cheaper, and with 3 years warranty Voltcraft ... We can not have everything! At Amazon, the service is excellent: it deserves a small fee!