With the Patona Dual LCD USB charger for DJI Osmo Action camera AB1 P01, two batteries can be charged quickly, at the same time and independently. It does not matter whether the two batteries have the same capacity. The integrated, micro -controller -controlled charging technology automatically recognizes the required voltage of the pickled battery and prevents overload or overheating. The charger has 2 charging methods, "L" for normal battery -saving loads and "H" for fast charging. Important information such as the charge status, use of the vehicle adapter and the loading style is displayed on the LCD display. Technical data: Input: Micro USB 5V / 2.1A (max.) / Type USB-C 5V / 2.1A (max.) Output: 4.2V / 4.35V "L" 700mA X1, 700mA X2 "H "700mA X1, 700mA x2 output: 4.2V / 4.35V / 700M" L "700mA X1, 700mA X2" H "700mA X2 Suitable for the following camera types: DJI OSMO Action camera AB1, P01 Suitable for the following battery modelle: DJI Osmo Action Camera AB1 P01