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When you turn on a device or a tool that runs on a motor, the device goes
through 2 stages:
1.
Start Up –
Requiring an initial surge of power (commonly known as the
“starting” or “peak” load).
2.
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 wattage.
In general, the startup load of the device or power tool determines whether your
converter has the capability to power it.
Always run a test to establish whether the converter will operate a particular
piece of equipment or device. In the event of a power overload, the converter is
designed to automatically shut down.
This safety feature prevents damaging the converter while testing devices and
equipment within the wattage range of the converter.
When using the vehicle’s 12 volt accessory port, this converter is designed to
supply 60 to 70 watts when the vehicle is not running. With the vehicle’s engine
running, it can supply up to 100 watts. To use the full output, you must connect
the converter directly to your battery.
NOTE:
The 100 watt limit is to accommodate the fuse ratings for all vehicles.
Some vehicles may allow the full output. If the fuse blows when you switch on the
device you are trying to use, you have to either use a smaller device or you must
connect the converter directly to the battery.
IMPORTANT: This converter uses a modified sine waveform (diagram A) which
is not quite the same as power company electricity (diagram B). For the following
devices, we strongly recommend that you use caution and check the device’s
manual to make sure it is compatible with modified sine waveform.