Product description& 65306; Size: Diameter 28mm Length 77mm Weight: 117G Output voltage: 4-12V, 0.1V adjustment Display: OLED-0.5 inch / resolution 88*48 Battery capacity: 1300mAh Working time: about 6 hours/8V Charging time: about 3 hours Charging interface: TYPE-C/5V/1A Instructions: 1. Connect the battery to the machine. 2. Boot start/pause: There are 2 boot modes. In shutdown state, long press the power button to enter the normal startup mode, then press the power button to start the machine, and then press the power button to stop the machine; in the shutdown state, double-click the power button to enter the enhanced startup mode. Press the power button again to start the machine, rise to 10V in 0.2 seconds and then drop to the current set voltage, and then press the power button to stop the machine. 3. Shutdown: long press the power button to shut down in the power-on state, it will automatically shut down for 5 minutes without output, and automatically shut down within 5 minutes with output and no load. When the battery is less than 5%, it will alarm that the battery is too low, and then shut down. 4. Voltage adjustment: click the + button to increase the voltage, 0.1V to increase, long press the + button to quickly increase the voltage; click the - button to decrease the voltage, 0.1V to decrease, long press the - button to quickly decrease the voltage; voltage range 4- 12V. 5. Charging: Plug in the TYPE-C charging cable to charge, the display will prompt "Charging" when charging, and "Charge complete" will be displayed on the display after charging is complete.