Whistler 2000 WATT - Manual (Page 8)

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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 amp/hours
of a single battery; three batteries will generate three
times the amp/hours and so on.
This multiple parallel battery option is especially
recommended for the Whistler 3000 inverter due to the
high level of amps these models require to produce up
to 3000 watts of continuous load. For more information
regarding battery power please visit our inverter faq
page at www.whistlergroup.com/faq-inverters.asp.
Wire Cable Gauges
For safe and proper operation of the inverter, connect the
inverter to the power source with the thickest wire available
and in the shortest length practical.
1200
When the inverter and the battery are set up within four 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. At distances of more than six feet, use #0 gauge wire.
Regardless of the wire gauge selected to make the connections
to the battery, we recommend use of an "O Ring
BATTERY INFORMATION
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1. To calculate the amp/hour 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 amp/hour rating. A battery with a reserve minutes
rating of 166 has an amp/hour.
2. To estimate the maximum battery power the inverter
will require to run a piece of equipment or appliance,
divide its continuous load wattage requirement by 10.
The WHISTLER 1200 watt model utilizes 50 amps of battery
power to operate an appliance with a 500 watt continuous
load requirement. (500 divided by 10 = 50).
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 divided
by 50 = 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 vehicles.