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BATTERY/CABLE INFORMATION
• It may be advisable to operate the inverter from a bank
of batteries of the same type in a "parallel" configuration.
Two such batteries will generate twice the Ah of a
single battery; three batteries will generate three
times the Ah and so on. See “Making a Connection”
on page 13 for more information.
This multiple parallel battery option is especially
recommended for the Pro-2500W and Pro-3000W
inverters due to the high level of amps these models
require to produce up to 3000 watts of continuous
Wire Cable Gauges
For safe and proper operation of the inverter, connect the
inverter to the power source with the proper gauge available
and in the shortest length practical.
Pro-1200W and Pro-1600W
When the inverter and the battery are set up within three feet
of each other, use a minimum of #4 gauge wire to make the
connections. Within four to six feet, use a minimum of #2 gauge
wire (Pro-1200W), #0 gauge for Pro-1600W. At distances
between six feet to ten feet, use #0 gauge wire (Pro-1200W),
#00 gauge for Pro-1600W.
BATTERY INFORMATION
1. To calculate the Ah of the battery, first determine its
"reserve minutes" rating. (Deep cycle marine batteries
generally have the highest reserve minute ratings). This
rating typically is marked on the battery along with the
"Cold Cranking Amps" (CCA) rating. Multiply the reserve
minutes rating of the battery by 0.3 to determine the
battery approximate Ah rating. A battery with a reserve
minutes rating of 166 has an Ah rating of 49.8.
2. To estimate the maximum battery current the inverter
will require to run a piece of equipment or appliance,
divide its continuous load wattage requirement by 10.
The Pro-1200W watt model utilizes 50 amps of battery
power to operate an appliance with a 500 watt continuous
load requirement. (500W divided by 10V = 50A).
3. Conclusion: The reserve power of the battery is sufficient
to satisfy the continuous load demand placed on the
inverter for a maximum of about one hour. (49.8 Ah
divided by 50A = 1 hour).
Note:
• When the inverter will be operating equipment or
appliances with high continuous load ratings for extended
periods, it is not advisable to power the inverter with the
same battery used to power your vehicle. If the car or truck
battery is utilized for an extended period, it is possible that
the battery voltage may be drained to the point where
the battery has insufficient reserve power to start the vehicle.
load.