PATONA Dual LCD USB Charger for Olympus BLH-1 OM-D EM-1 Mark 2 EM-1 Mark II. With the PATONA Dual LCD USB Charger for Nikon Olympus BLH-1, two batteries can be charged quickly, simultaneously, and independently of each other. It does not matter whether the two batteries have the same capacity. Additionally, the charger features a USB output that allows for the simultaneous charging of third-party devices (tablet, smartphone, etc.). The integrated microcontroller-controlled charging technology automatically detects the required voltage of the inserted battery and prevents overcharging or overheating. The charger has two charging modes: "L" for normal, battery-friendly charging and "H" for fast charging. Important information such as charging status, active USB port, use of the car adapter, and charging mode is displayed on the LCD screen. Technical specifications: Input: AC 100V-240V 50/60Hz 1500mA (max), DC 12-24V 3000mA (min); Output: DC 8.4V / 12.6V / 16.8V "L" 1000mA x1, 500mA x2; "H" 1500mA x1, 800mA x2; USB Output: DC 5V 2100mA. Compatible with the following camera types: Olympus OM-D EM-1 Mark 2, EM-1 Mark II. Compatible with the following battery models: Olympus BLH1, BLH-1.