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14
To achieve
50% cycling you should calculate
your amp-hour consumption between charging
cycles and use a battery bank with twice that
capacity**. Each AC appliance or tool has a
rating plate on it and will be rated in either AC
amps or watts or AC VA (volt-amps) apparent
power. To calculate amp-hour consumption,
use one of the formulas to the right to calculate
the DC amp-hour draw for a 12 volt system.
Calculate the amp hours for every AC
appliance or tool that will be operated on the
inverter. This will provide the total number of
amp hours used between recharges. Size the
battery bank using this number as a guideline.
A good rule to follow is to size the battery bank
a minimum of two times larger than the total
amp-hour load requirement. Plan on recharging
when 50% discharged.
BATTERIES
(AC amps x 10) x 1.1 x hours of
operation = DC amp hours
(watts/ DC voltage) x 1.1 x hours of
operation = DC amp hours
(AC VA/ DC voltage) x 1.1 x hours of
operation = DC amp hours
DC voltage is 12, 24 or 32,
depending on your system.
**Batteries are typically charged to 85% of full charge
when charging with alternators without three-stage
regulators.
Typical Power Consumptlon
The chart identifies typical power consumption
for common AC loads. Use it as a guide when
identifying your power requirements.
Many electric motors have momentary starting
requirements well above their
operational rating. Start-up watts
are listed where appropriate.
Individual styles and brands of
appliances may vary.
If using the same battery bank
for the inverter and other DC
loads, be sure to consider the
power consumption of the DC
loads when sizing the battery
bank.
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In all formulas, 1.1 is the correction factor for
inverter efficiency.
AMP-HOUR CONSUMPTION FORMULAS
NOTE
Certain laser printers, breadmakers,
digital clocks and appliance/tool chargers
may not operate on modified sine wave.
Summary of Contents for Fleet Power FP 3000-12
Page 1: ...Owner s Manual Xantrex Fleet Power TM 3000 12 Inverter Charger FP 3000 12 ...
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