Schumacher PI-70 Benutzerhandbuch

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engine. To maintain battery power, start the engine every 2 to 3 hours 

and let it run for approximately 30 minutes to recharge the battery.
Although it is not necessary to disconnect the inverter when turning 

over the engine, it may briefly cease to operate as the battery voltage 

decreases. While the inverter draws very low amperage when not in 

use, it should be unplugged to avoid battery drain.

The LED glows GREEN automatically when plugged into a 12-volt 

DC source and will not glow under the following conditions (NOTE: 

On Model PI-120 a BLUE LED will glow):

When the power input from the vehicle’s battery drops to 

approximately 10-volts, low battery shutdown occurs and 

inverter shuts off. Solution: Recharge or replace the battery.
When the power input from the vehicle’s battery exceeds 

15-volts, high voltage protection occurs. Solution: Reduce the 

voltage range to between 12-volts and 14-volts.
The continuous load demand from the equipment or device 

being operated exceeds the continuous load rating of the 

inverter being used. Solution: Use a higher capacity inverter or 

lower rated device.
The case temperature becomes hot (exceeds 145°F). Solution: 

Allow the inverter to cool. Do not block the cooling slots or air 

flow over and through the inverter. Reduce the load on the 

inverter to the continuous rated output.

RESET: To reset after shutdown occurs, remove the 12-volt plug from 

the accessory outlet. Check the source of the problem and correct. 

Reinsert the 12-volt plug into the accessory outlet.

Your power inverter is fitted with a fuse, which should not have to be 

replaced under normal operating conditions. A blown fuse is usually 

caused by reverse polarity or a short circuit within the device or 

equipment being operated.
If the fuse does blow:

Disconnect the device or equipment immediately.

Find the source of the problem and repair it.