Understanding the Interface on GB50
1. Internal Battery Level
Indicates the charge level of the internal battery.Learn More.
2. Error LED
Illuminates Red if reverse polarity is detected.
3. Hot LED
Illuminates solid Red; unit is fully operational, but approaching upper temperature limit. Flashing Red; unit is too hot to jump start, but other functions are still available.
4. Cold LED
Illuminates solid Blue; unit is fully operational, but approaching lower temperature limit. Flashing Blue; unit is too cold to jump start, but other functions are still available.
5. Power Button
Push to turn unit "On" & "Off".
6. Power LED
Illuminates White when unit is "On".
7. Boost LED
Illuminates White when Boost is active. If the unit is connected properly to a battery, the GB50 will automatically detect a battery and go into Boost mode (LED flashes White when Manual Overide feature is active).
8. 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.
9. Light Mode Button
Toggles the ultra-bright LED light through 7 light modes: 100% > 50% > 10% >SOS>Blink>Strobe>Off
8AM to 4PM PDT
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