The OG Battery - Brass

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650mAh: stores more charge and more power How to Use: Power On/Off: Press the top button 5 times. Voltage Settings: Press 3 times to cycle through: White (3.2V), Green (3.7V), Blue (4.1V). Preheat Mode: Press 2 times (10-second countdown on the OLED screen). Auto Shut-Off: Exceeds 10 seconds, blinks 5 times, then powers off. Low Battery: Screen flashes 10 times. Charging: Type-C port (bottom); LED turns white when charging and stops when fully charged. Show more