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Estimating Battery Requirements
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Estimating Battery Requirements
To determine the battery capacity you require:
1. Determine how many watts are consumed by each
appliance that you will be operating from the
PROwatt 600. You can normally find this on a label on
the product. If only the current draw is given, multiply it
by 115 to get the power consumption in watts.
2. Estimate how many hours each appliance will be
operating each day.
3. Calculate the daily watt-hours needed for each appliance.
4. Add the total number of watt-hours needed for all the
appliances and multiply it by the number of days between
charges.
5. Divide the total watt-hours of AC load between charges
by 10. This gives the battery Ah used between charges.
6. Double the total Ah used between charges to get the
recommended battery size in Ah.
See the battery sizing example that follows.