Tripp Lite AG-879F Series Owner's Manual page 13

Battery Connection
5. Connect Ground: Using the ground wire, directly connect the
Main Ground Screw to the vehicle's chassis or earth ground.
See Feature Identification to locate the Main Ground Screw.
All installations must comply with national and local codes and
ordinances.
WARNING!
• Failure to properly ground your Inverter to a vehicle's chassis
or earth ground may result in a lethal electrical shock hazard.
• Never attempt to operate your Inverter by connecting it
directly to output from an alternator rather than a battery or
battery bank.
• Observe proper polarity with all DC connections.
Vehicular Applications
Your Inverter's Nominal DC Input Voltage must match the voltage
of your battery or batteries. 12V DC is used in most vehicular
applications. It is possible to connect your Inverter to the main battery
within your vehicle's electrical system. In many vehicular contexts, the
Inverter will be connected to one or more dedicated auxiliary (house)
batteries, which are isolated from the drive system to prevent possible
draining of the main battery.
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