Tuffking Wireless Second Generation Tattoo Power Supply 1. Product Characteristics Tuffking's new generation of wireless batteries is an upgraded version based on the first generation. It features an OLED display instead of an LED light display. It uses RCA and DC interfaces to connect with various machines. The circuit hardware and software algorithms have been upgraded. The voltage range is wider, with more precise and faster regulation. It offers dual startup methods: general startup and boost startup, to adapt to different application scenarios. The high-definition OLED screen provides rich and clear display content. It includes protection against overcharging, short needles, short circuits, and displays text reminders for various abnormal conditions. 2. Basic Parameters 1. Product Name: Tuffking Second Generation Wireless Battery 2. Product Model: Tuffking-II (for reference) 3. Size: Diameter 28mm, Length 77mm 4. Weight: 117g 5. Output Voltage: 4-12V, adjustable in 0.1V increments 6. Display: OLED-0.5 inch / Resolution 88*48 7. Battery Capacity: 1300mAh 8. Working Time: Approx. 6 hours at 8V 9. Charging Time: Approx. 3 hours 10. Charging Interface: Type-C/5V/1A 3. How to Use 1. Connect the battery to the machine. 2. Power On/Pause: Features 2 startup modes. Long press the power button to enter normal startup mode, then press the power button to start the machine and press again to stop. Double-click the power button to enter boost startup mode. The machine will start with a 0.2-second boost to 10V, then drop to the currently set voltage. Press the power button again to stop. 3. Power Off: Press the power button to turn off. The device will automatically shut down without output if idle, and automatically shut down without load after 5 minutes. When the power is below 5%, a low power alarm will sound before shutting down. 4. Voltage Adjustment: Click the +/- buttons to increase or decrease the voltage by 0.1V. Long press the +/- buttons for rapid voltage adjustment. The voltage range is 4-12V. 5. Charging: Connect the Type-C charging cable for charging. The display will show "Charging" during the charging process. Once charging is complete, the display will show "Charging Complete."