Features: * With 4 kinds of charge current adjustment (300mA/500mA/700mA/1000mA); it can charge different sizes (18650/26650.../AA/AAA) of battery simultaneously. * The charger uses a separate LCD display, allowing you to see at a glance the parameters of voltage (V), current (mA), time (h), capacity (mAh), and internal resistance (mR). * CHARGE, FAST TEST, NOR TEST 3 modes can work simultaneously; independently set charging, fast capacity detection, normal capacity detection. * Various protection functions, overcharge and overdischarge, short circuit, temperature, 0V voltage activation function, intelligent identification of bad battery and reverse battery detection protection. * With a standard 5V/1000 mA USB output function, a 1-cell lithium battery to 4-cell lithium battery completes the USB output, but the Ni-MH battery cannot carry USB output.