User`s manual

page 11
Temporary Wiring
The power inverter comes with a set of jumper cables to attach
directly to your battery terminals for temporary usage. For
permanent installation, you should hardwire the power inverter
into your 12 volt system as described below.
WARNING When connecting cables, a spark may
occur. This is normal. To prevent explosion from the
battery gasses, when connecting jumper cables, always
connect the wires to the inverter first, then connect the
positive alligator clip to the positive (+) terminal on
the battery. Finally connect the negative (-) alligator
clip to a solid ground point on the engine.
Connect the red wire to the red positive (+) terminal on the
inverter and the black wire to the black negative (-) terminal on
the inverter. Connect the red alligator clip to the positive battery
terminal and the black alligator to the frame or engine of the
vehicle. Follow the instructions below and proceed to Step #3
Testing the Power Inverter.