Specification (১ টি ২১৭০০ ব্যাটারীসহ)Only Case with PD 20W QC 22.5W Fast Charging CircuitHousing Material: ABS ShellColors: BlackBattery: 1x 21700 batteryInstallation Note: Spring indicates negative (-)Mainboard Configuration: USB fast-charge output port Type-C bidirectional fast-charge port integrated Type-C fast-charge cableIntegrated Cable Interface: Type-C port (dual Type-C connectors)Input Power: 5V-2A/5V-3A/9V-2.2A/12V-1.67AOutput Power: 5V-2A/5V-3A/9V-2.2A/12V-1.67A/10V-2.25AFour indicator lights display battery level. All four lights remain on when fully charged. Green light indicates fast charging status.This kit features multiple protections including overcharge/over-discharge/overvoltage/overcurrent, ensuring safe and reliable use.1 Battery Included