[Compatible with Bosch 18V PBA batteries] This wireless charger is compatible with Bosch 18V PBA lithium batteries. The battery is not included [USB charger & Type-C connectors] Input voltage: DC18–25V; USB/Type-C output: 5V/2A; Supported protocols: PD2.0/PD3.0 (PPS), QC2.0/3.0, for Huawei Fast Charging Protocol FCP, Huawei Fast Charging Protocol SCP, Samsung Fast Charging Protocol AFC and Spreadtrum Fast Charging Protocol SFCP. On the construction site to charge small electronic devices (smartphones, MP3 players, MP4 players, cameras, tablets and other USB devices) when no power supply is available [4 wireless charging modes available for different 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 [Easy to use] Just slide the battery into the lower interface of the charger and press the button. Put your smartphone on the charger. You can use the USB-A or USB-C port to charge your headphones. During the charging process, the green indicator lights up. At normal voltage, the red indicator does not light up. At low voltage, the red control light is lit. Wireless charging and USB output will then stop [Safety Charge Protection] The integrated smart chip of the wireless charger provides protection against overheating, overcurrent, overvoltage and short circuit. Wireless charger for a better and safer charging experience