Understanding the Interface on GB20
1. Internal Battery Level
Indicates the charge level of the internal battery.Learn More
2. Error LED
Illuminates Red if reverse polarity is detected, or blinks “On” and “Off” when the internal battery temperature is too high.Learn More
3. Power Button
Push to turn unit "On" & "Off".
4. Power LED
Illuminates White when unit is "On".
5. Boost LED
Illuminates White when Boost is active. If the unit is connected properly to a battery, the GB20 will automatically detect a battery and go into Boost mode (LED flashes White when Manual Overide feature is active).
6. Manual Override Button
To enable, push and hold for three (3) seconds. WARNING: Disables safety protection and manually forces Boost "On". Only for use when a battery is too low to be detected.Learn More
7. Light Mode Button
Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10%>SOS>Blink>Strobe>Off
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