Schumacher PI-70 User Manual

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This device does not include an internal Ground Fault Circuit 

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Interrupter (GFCI). 
Use only 10-amp fuses (Model PI-70).

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Use only 15-amp fuses (Models PI-120 and PI-140).

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WARNiNG: Pursuant to California Proposition 65, this product contains 

chemicals known to the State of California to cause cancer and birth 

defects or other reproductive harm. Wash hands after handling.

LED Indicator Light (Green = Power ON)

Standard Electrical 120V AC Outlet

12-Volt Power Plug

USB Power Port (Models PI-120 and PI-140)

Low-Battery Protection

When you turn on a device or a tool that runs on a motor, the device 

basically goes through two stages:

Start Up – Requiring an initial surge of power (commonly known 

as the “starting or peak load”).
Continuous Operation – Power consumption drops (commonly 

known as the “continuous load”).

The wattage (WATTS) or amperes (AMPS) can normally be found 

stamped or printed on most devices and equipment, or in the user’s 

manual. Otherwise, contact the manufacturer to find out whether the 

device you want to use is compatible with a modified sine wave.
To calculate the wattage: Wattage = AMPS x 120 (AC Voltage).
To calculate the starting load: Starting Load = 2 x WATTS. In general, 

the start up load of the device or power tool determines whether your 

inverter has the capability to power it.
To calculate the continuous load:  

Continuous Load = AMPS x 120 (AC Voltage).
ATTENTiON: Always run a test to establish whether the inverter will 

operate a particular piece of equipment or device. In the event of a 

power overload, the inverter is designed to automatically shut down.