[Compatible with Bosch 18V GBA batteries] This cordless charger is compatible with Bosch Professional 18V System GBA lithium batteries. The battery is not included. [USB Charger & Type-C Port] Input Voltage: DC 18–25V; USB/Type-C Output: 5V/2A; Supported Protocols: PD2.0/PD3.0 (PPS), QC2.0/3.0, Huawei Fast Charging Protocol FCP, Huawei Fast Charging Protocol SCP, Samsung Fast Charging Protocol AFC, and Spreadtrum Fast Charging Protocol SFCP. For charging small electronic devices (smartphones, MP3 players, MP4 players, cameras, tablets, and other USB devices) on-site when no power outlet is available. [4 wireless charging modes available for various smartphones] Wide compatibility. Wireless charging power: 5W/7.5W/10W/15W. Supported protocols: BPP, PPDE, and EPP. The charger is not a magnetic wireless charger. [Einfach zu bedienen] Simply insert the battery into the lower interface of the charger and press the button. Place your smartphone on the charger. To charge your earbuds, you can use the USB-A or USB-C port. During charging, the green indicator light will illuminate. The red indicator light does not illuminate under normal voltage. If the voltage is low, the red indicator light will illuminate. Wireless charging and USB output will then be stopped. [Security Charging Protection] The integrated smart chip in the wireless charger provides protection against overheating, overcurrent, overvoltage, and short circuits. The wireless charger ensures a better and safer charging experience.