Understanding the Interface on GB500+
1. Internal Battery Level
Indicates the charge level of the internal battery.Learn More.
2. 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.
3. 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.
4. Error LED
Illuminates Red, if reverse polarity is detected.
5. Voltage Indicator
Indicates the battery system voltage the GB500 is currently set to. 12V illuminates White when in 12V mode, 24V illuminates Blue when in 24V mode.
6. Power Button
Push to turn unit “On” and “Off”.
7. Power LED
Illuminates White when unit is “On”.
8. Voltmeter/Countdown Timer
The built-in voltmeter reads the voltage of the vehicle’s battery for enhanced diagnostics and troubleshooting. The voltmeter will automatically read the voltage of any battery (or battery system) when the battery clamps are connected - even if the unit is powered off. The voltmeter will read voltage between ~3V to ~30V. If the connected battery is below 3V, nothing will display. In this situation, it is likely there is a load(s) on the battery, such as, headlights or an AC fan that should be shut off before attempting to start the vehicle. While the unit is on and after a battery is detected, the voltmeter will display the 60-Second Timeout countdown.
9. Boost LED
Illuminates White when Boost is active. If the unit is connected properly to a battery, the GB500 will automatically detect a battery and go into Boost mode (White LED flashes when Manual Overide feature is active).
10. Manual Override LED
Illuminates solid Red when Manual Override is activated.
11. 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.
12. Voltage Selection Knob
Turn to switch between 12V and 24V mode.
13. Light Mode Button
Toggles the worklight through 7 light modes: 100% > 50% > 10% > SOS > Blink > Strobe > Off.
14. USB Out LED
Illuminates White; USB Out function can be used in both 12V and 24V modes.
15. 12V Out LED
Illuminates White; 12V Out function can only be used in 12V mode.Learn More.
16. 12V In LED
Illuminates White; 12V In function can only be used in 12V mode.
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