Product Manual

20-30 seconds and try again. Do not attempt more

than ﬁve (5) consecutive jump starts within a ﬁfteen (15)

minute period. Allow the GB150 to rest for ﬁfteen (15)

minutes before attempting to jump start the vehicle

again.

Understanding Charge LEDs.

The GB150 has four (4) Charge LEDs - 25%, 50%,

75% and 100%. These Charge LEDs indicate the

internal battery’s state-of-charge (SOC). See below:

LED Explanation

The above charge states apply when the GB150 is NOT

connected to a power supply and recharging.

25%

Red LED

The 25% Charge LED will be solid

when the internal battery is 25% or

less charged.

50%

Red LED

75%

Yellow LED

The 50% and 25% Charge LEDs will

be solid when the internal battery is

more than 25% but less than 50%

charged.

The 75%, 50%, and 25% Charge

LEDs will be solid when the internal

battery is more than 50% but less

than 75% charged.

All four (100%, 75%, 50%, and 25%)

Charge LEDs will be solid when the

internal battery is more than 75% up

to 100% charged.

100%

Green LED

25% 50% 75% 100%