Therefore the 120 VAC x 0.3 Amps equals 36 Watts.ĭC Voltage - Output Voltage is rating of your battery system, usually a single 12 volt battery. It's calculated by multiplying voltage by amperage. Wattage - Wattage is the total amount of power the application uses. For instance, our example application draws 300 milliamps, which is the same as 0.3 Amps. This number is usually rated in Amps, if the current is rated in milliamps (mAh) you can convert it to Amps by dividing the number by 1000. Most applications have this listed on the AC power brick. For these examples, we'll use the US standard of 120 Volts AC (240 VAC can be entered in the calculator for the inversion).ĪC Amperage - Input Amperage (AH) is how much current the application draws from the AC power. In the US it can be anywhere from 100-125 VAC. There is a solar article that goes well in depth on these calculations if you’re interested in the techie type stuff: Solar Info: The Down Low on Everything Up High Enter AC Device Ratings AC Voltageįind Your Battery Choose Your Inverter WalkthroughĪC Voltage - Many applications will have a range of Input AC Voltage. This calculator includes the typical inefficiencies in efforts to give you realistic DC Amperage Rating. Just enter your AC Voltage and AC Amperage into the fields below and we will do all the hard calculations for you.
The calculator also provides the wattage rating you are pulling so you can properly size the power inverter you need! This calculator helps you determine the DC amperage as it passes through a power inverter.
The first step to sizing the battery pack when using a DC to AC Power Inverter is to know your DC Amp rating. (Not to be confused with a converter, which takes AC to a DC.) Welcome to our AC to DC Amperage conversion calculator! So, you’ve got an electrical household device you need to run but no regular grid power available, right? For this you need a DC to AC Power Inverter that takes the DC voltage a battery provides and inverts it to AC voltage so that you can run an AC Powered Device.
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