Resistive loads are the easiest for the inverter to run; however, it will not run larger resistive loads (such as electric stoves and
heaters), which require far more wattage than the inverter can deliver. Inductive loads (such as TVs and stereos) require more
current to operate than do resistive loads of the same wattage rating.
For safety reasons, the inverter will simply shut down if it is overloaded. To restart the unit, simply unplug all devices plugged
into the inverter; disconnect the inverter from any 12 volt DC power source; then reconnect the inverter BEFORE plugging the
appliance(s) back in.
OPERATING INSTRUCTIONS
The bi-color power/fault LED indicator lights green when the Inverter is properly connected to a functioning DC power source. The
AC and USB outlets are ready to use. (If the bi-color power/fault LED indicator lights red, refer to the Troubleshooting Section of this
Instruction Manual.)
To turn the unit off, disconnect it from the 12 volt DC power source.
CAUTION: TO REDUCE THE RISK OF PROPERTY DAMAGE:
Always connect the inverter to the 12 volt DC power source
before
plugging any devices into the unit.
The standard North American 120 volt AC and USB outlets allow simultaneous operation of multiple devices. Simply plug the
equipment into the unit and operate normally.
Note:
Ensure that the wattage of all equipment simultaneously plugged into the inverter does not exceed 120 watts for 60 minutes and 100 watts continuous
or the unit may overheat and shut down.
Operation of the 120 Volt AC Outlet and USB Charging Port
1. Connect the unit to a vehicle’s accessory outlet or other 12 volt DC power source. Make sure there is adequate space for proper
ventilation of the inverter.
2. Rotate the unit slightly to make sure there is good contact.
3. The bi-color power/fault LED indicator will light green, indicating a proper connection. If the bi-color power/fault LED indicator
lights red, a Fault condition exists. Refer to the Troubleshooting Section of this Instruction Manual.
4. Plug the 110/120 volt AC appliance into the inverter’s three-prong AC outlet and/or plug the USB-powered device into the
inverter’s USB charging port and operate normally.
Notes:
If the Inverter does not work, make sure the ignition/accessory switch is actually powering the accessory outlet. Some vehicles require the ignition switch
to be turned on.
The Inverter will not operate appliances and equipment that generate heat, such as hair dryers, electric blankets, microwave ovens and toasters.
This inverter’s USB Charging Port does not support data communication. It only provides 5 volts/1,000 mA DC power to an external USB-powered device.
Remember to disconnect the unit from any power source when it is not in use.
Operating Tips
The inverter should only be operated in locations that are:
DRY — Do not allow water or other liquids to come into contact with the inverter.
COOL — Surrounding air temperature should ideally be 10-20°C (50-68°F). Keep the inverter away from direct sunlight, when
possible.
WELL-VENTILATED — Keep the area surrounding the inverter clear to ensure free air circulation around the unit. Do not place items
on or over the inverter during operation. The unit will shut down if the internal temperature gets too hot. The inverter will auto-
reset after it cools down.
SAFE — Do not use the inverter near flammable materials or in any locations that may accumulate flammable fumes or gases. This
is an electrical appliance that can briefly spark when electrical connections are made or broken.
CARE AND MAINTENANCE
Storage
1. Ideal-storage-temperature-range-is-0-40°C (32-104°F).
2. Store and use the inverter in a cool, dry place with adequate ventilation for all-around air circulation.
3. Avoid locations that are exposed to heating units, radiators, direct sunlight, or excessive humidity or dampness.
Fuse Replacement
If the inverter is overloaded, and the green LED is not lit, the internal 8 amp fuse may be blown.
1. Unscrew the flange of the plug (counterclockwise).
2. Remove the end contact, flange and fuse.
3. Inspect the fuse to see if it is good or blown.
4. Replace with a new 8 amp fuse, if needed.
5. Carefully reassemble the fuse, end contact and flange. Do not overtighten the flange (clockwise).
4
5
• Make sure the nominal powering voltage is 12 volts DC.
• Do not use with positive ground electrical systems.* Reverse polarity connection will result in a blown fuse and may cause
permanent damage to the inverter and will void warranty.
*The majority of modern automobiles, RVs and trucks are negative ground.
• Keep in mind that this inverter will not operate high wattage appliances or equipment that produce heat, such as hair dryers,
microwave ovens and toasters.
• DO NOT OPEN THE INVERTER — there are no user-serviceable parts inside. Opening the inverter will void manufacturer’s
warranty.
• Do not use this inverter with medical devices. It is not tested for medical applications.
• Install and operate inverter only as described in this Instruction Manual.
SAVE THESE INSTRUCTIONS
WARNING: TO REDUCE THE RISK OF INJURY OR PROPERTY DAMAGE:
Follow these instructions and those published by the
manufacturer of any equipment you intend to use with this inverter. Review cautionary markings on these products.
INTRODUCTION
Congratulations on purchasing your new
Stanley 120 Watt Power Inverter
.
Read this Instruction Manual and follow the
instructions carefully before using your new inverter.
This power inverter is configured to supply continuous power in the form of a 120 volt AC outlet and a 5 volt USB charging port to
run most household or electronic appliances.
HOW THIS INVERTER WORKS
This inverter is an electronic device that converts low voltage DC (direct current) electricity from a battery to 120 volts AC
(alternating current) household power. It converts power in two stages. The first stage is a DC-to-DC conversion process that raises
the low voltage DC at the inverter input to 145 volts DC. The second stage is a MOSFET bridge stage that converts the high voltage
DC into 120 volts, 60 Hz AC.
Power Inverter Output Waveform
The AC output waveform of this inverter is known as a modified sine wave. It is a stepped waveform that has characteristics similar
to the sine wave shape of utility power. This type of waveform is suitable for most AC loads, including linear and switching power
supplies used in electronic equipment, transformers, and small motors.
CAUTION: RECHARGEABLE DEVICES
• Certain rechargeable devices are designed to be charged by plugging them directly into an AC receptacle. These devices may
damage the inverter or the charging circuit.
• When using a rechargeable device, monitor its temperature for the initial ten minutes of use to determine if it produces excessive
heat.
• If excessive heat is produced, this indicates the device should not be used with this inverter.
• This problem does not occur with most of the battery-operated equipment. Most of these devices use a separate charger or
transformer that is plugged into an AC receptacle.
• The inverter is capable of running most chargers and transformers.
PROTECTIVE FEATURES
The inverter monitors the following conditions:
Input Voltage Too Low:
This condition is not harmful to the inverter, but could damage the power source, so the inverter will
automatically shut down when input voltage drops below 10.5 ± 0.5 volts DC.
Input Voltage Too High:
The inverter will automatically shut down when DC input voltage exceeds 16.2 ± 0.5 volts, as this can
harm the unit.
Thermal Shutdown Protection:
The inverter will automatically shut down when the unit becomes overheated.
Overload/Short Circuit Protection:
The inverter will automatically shut down when an overload or short circuit occurs.
Note:
The Power/Fault LED Indicator will light red to indicate a input voltage too low or input voltage too high fault condition OR flash red and green to indicate
a thermal, overload or short circuit fault condition before automatic shutdown occurs.
RATED VERSUS ACTUAL CURRENT DRAW OF EQUIPMENT
Most electrical tools, appliances, electronic devices and audio/visual equipment have labels that indicate the power consumption
in amps or watts. Be sure that the power consumption of the item to be operated is below 120 watts for 60 minutes and 100 watts
continuous or the unit may overheat and shut down. If the power consumption is rated in amps AC, simply multiply by the AC volts
(120) to determine the wattage.
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