User`s manual

page 14
Advanced Installation
Large inverters can draw high currents from your battery and
charging system especially when used with appliances and tools
that use a lot of power. In these applications, you may need to
increase the capacity of your 12 volt system. There are several
ways to do this.
High Capacity Batteries
You can purchase high capacity batteries that are specially
designed for deep discharge operation. Contact your
automotive or RV specialist for more information.
Multiple Batteries
In systems with multiple batteries, you typically wire the
system with the batteries in parallel (negative to negative and
positive to positive) with a battery isolator between the
positive terminals. The isolator allows a single alternator to
charge both batteries but lets the inverter only use the second
battery so the vehicle’s battery is not discharged during
operation. Contact your automotive or RV specialist for more
information about battery isolators and wiring.
Larger Alternator
Typical automotive alternators may not be able to supply the
power required for continuous operation of the inverter at high
power usage. Contact your automotive or RV specialist for
more information about larger output alternators.