Full Product Manual

10
Determine your Watts (Amps * Volts)—
every electronic will have a sticker or plate
identifying the watts directly (W) or will show you the voltage value (V) as well as amperage
(A) which need to be multiplied to get Watts. The formula is below:
Sizing your Battery Bank
Battery types and capacity relate to overall inverter performance. To size a battery bank, you
need to identify the loads that you will be utilizing, as well as an estimate (hours/day) you will be
using the load. The inverter is only compatible with 12V battery banks and oversizing should be
considered due to efficiency losses.
NOTE
You will need a battery charging source as this is a non-charging inverter and will
only work to deplete the battery.
A 115Ah battery bank, or close, will be able to support a 12-hour run time while also prolonging
battery life for the best system size possible.
NOTE
This is an example and actual quantities vary by battery capacity and rates of
discharge.
Watts (W) = Volts (V) * Amps (A)
Fan Watts = 120V * 0.4A = 48Watts
1.
Estimate Load Run-Time in Watt-Hours (Wh)—
Estimate how many hours per day you
will be using the load and multiply this by your Watts per load.
Fan Watts * 12 hours = Watt-Hour (Wh)
46W * 12h = 576Wh
2.
Determine Battery Capacity in Amp-Hour (Ah)—
Divide your Load Run Watt-Hour result
by the battery voltage. This inverter is 12V, so we will use this as the reference:
Load Run-Time (Wh) / Battery Voltage (V) = Amp-Hour (Ah)
576Wh / 12V = 48 Ah
3.
Oversize the Battery—
The calculated Amp-Hour value represents the minimum size
battery capacity to run your load for your intended time. Note that this assumes 100% use
of a battery, which is not recommended. Assuming 50% depth of discharge (DoD), you
want to divide by this value and then multiply by a factor of 1.25 to account for some
efficiency losses.
(Amp-Hour / DoD%) * Efficiency Losses = Recommended Amp-Hour
(48Ah / 50% DoD) * 1.2 = Approx. 115Ah
4.