User`s manual

STP-120 Power Inverter
Page 8
STP-120 Power Inverter
CAUTION: There are a few battery chargers
that are not compatible with modified sine wave
operation. These are typically small rechargeable,
battery-operated devices like razors and
flashlights that can be plugged directly into an
AC receptacle to recharge.
Some chargers for battery packs used in power
tools also should not be used with an inverter.
These chargers typically have a warning label
indicating that dangerous voltages are present at
the battery terminals. Only a true sine wave
inverter should be used with these types of
appliances. Damage to the device could result if
you attempt to use them with any type of
modified sine wave inverter.
Page 13
Operation of the USB Power port
1. Connect the Power Cord to the Inverter
2. Connect either the 12V DC car adapter or
the 12V DC airplane adapter to the end of
the 12V power cord.
3. Insert the selected adapter plug into a
vehicle DC accessory outlet or airplane
power outlet. Make sure there is good
contact. Some vehicles require the ignition
to be switched on.
4. Plug the USB-powered device into the
inverter’s USB power port and operate
normally.
Note: the inverter’s USB port does not support
data communications. It only provides 5
volts/500 mA DC power to an external USB-
powered device. USB power is always on when
the power cord is connected. Remember to
disconnect the power cord from any power
source when the unit is not in use.