MasterForce 241-0318, Operator'S Manual

Page 8

OPERATION

USING THE POWER SOURCE

1.   Open the access door and plug in a 12 V 
Automotive or 5 V USB powered appliance, 
and then install the battery (Fig. 3).
2.

If the appliance draws more than 

the rated output of the port, the Power 
Source will shut off all the outlets to protect 
the battery pack and the Fuel Gauge will 
flash red slowly. To restart the power source, 
remove and reinstall the battery pack. Use 
only appliances rated within the output 
specifications for the port.

LED INDICATOR

RED LED

GREEN LED

MEANING

ON WORKING

OFF

ON

Power Source is providing power to 

device(s).

LOW BATTERY

ON

OFF

Battery charge is below 20%  

capacity (Battery pack will turn off 

after depleted and LED indicator will 

go off).

SLOW FLASHING- 

OVERLOADED/ 

DEFECTIVE DEVICE

Slow flashing 

at 1 Hz

OFF

Power source is overloaded or  

defective.

RAPID FLASHING- 

HI/LO TEMP.

Rapid  

flashing at 

2 Hz

OFF

The Power Source is not operating 

with the optimum temperature range 

of 50°F (10°C) to  104°F (40°C).

FIG. 3

fUEL GAUGE

To indicate the battery-pack charge level, after inserting the battery pack into the 

power source, the Fuel Gauge will light up for 5-6 seconds. The functions of Fuel Gauge are 
listed: