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1. Internal Battery Level Indicates the charge level of the internal battery.
2. Error LED Illuminates Red if reverse polarity is detected, or blinks “On” and “O” when the internal
battery temperature is too high.
3. Power Button Push to turn unit "On" & "O".
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 GB40 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.
7. Light Mode Button Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10%
> SOS > Blink > Strobe > O
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