Unfortunately I can not confirm the positive reviews. In the first experiment, everything was still ok, d. Is power indicator, Polarization and charging indicator and charging function initially as described. Device really practical, thus actually ideal for my purposes. But already at the 3-th charging my small battery pack (about 5x5x10 cm) for my halogen cavers light fails the device during charging. Indicators are off, device can no longer be put into operation, no power indicator or current flow. According to indication the unit has an overload protection, and the battery was not even fully loaded in the collapse of the device. Amazon offers refunds and free return, no replacement. Whether it was a single error, or this type of device is generally botch I can not therefore judge.
