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When the device is fully charged, the indicator light will flash green 20 times then remain off. While charging, the indicator light will indicate the device’s current charge status: 3.5 volts or less (0-30%) = red light 3.5 to 3.8 volts (30-60%) = blue light 3.8 volts and above(60-100%) = green light. When the USB cable is attached, the indicator light will flash red 3 times.Charging the device via Micro USB charging port, the maximum current can reach up to 1A, and the recommended charging voltage is 5.0V.Over heat protection: When the temperature of the chip is above 75 ☌/167 ☏, the indicator light will be yellow for 3 seconds and the device will cut off.Overcharge protection: When the device is fully charged, it will stop charging to prevent overcharging of your battery.Low voltage protection: When the battery level drops below 3.0V, the device will not function and the indicator light will flash red 15 times to remind you to charge the device.Short circuit protection: When the device detects a short, it will stop firing, and the indicator light will flash pink 3 times.Automatic cutoff: The preset continuous fire time is 10 seconds, after 10 seconds of continuous firing, the indicator light will flash pink 10 times and the device will stop firing.The voltage display will turn on for 3 seconds to indicate the value of the corresponding output voltage: 3.0V, 3.5V, 4.0V, 4.5V, 5.0V. Press the mode button to adjust the output voltage.
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