Shell SH916WC User Manual page 7

Jump Starting Vehicle
The jump starter is intended to jump start vehicle with gasoline/diesel
engine using a 12V battery.
Before connecting to the battery
1. Verify the voltage of the battery.
The information can be found in the vehicle's owner's manual.
2. Make sure the power loads such as headlamps,
air-conditioning and radio are turned off.
3. Press the switch to check the internal battery level to ensure that there
is sufficient battery capacity to jump start a vehicle. (Refer to the
following table for more information)
Note: Required capacity to jump start a vehicle
LED Battery Level
Indicator
Battery Capacity
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Indications
Best condition to jump start
a vehicle
The minimum capacity required
to jump start a vehicle
Recharge the jump starter
before use
5