User Guide

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