received in good condition
This is a very light charger with a lot of power! dimensions. Approx metric mm L=137, W=97, H=175 You wouldn't expect such a light dual power supply with so much a power. It measures battery resistance, voltage, percentage, temp safety. relatively small & weightless compared to other powerful chargers. Maybe it gets all the power out of resonance frequencies I don't know. But it does not get hot! (auto on built in cool ventilation) a bit noisy but 4-12Amp you should expect some internal cooling. If you have LIPO batteries, I definitely recommend this charger!!