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#3000 watts to amps portable#

Now to give you an example of working out the daily power consumption: Divide 5.75 amps by 0.7 (70%) and you get 8.2 amps.

If you run this off the same 400 watt inverter you can only expect 70% efficiency (refer to inverter data supplied by your dealer). Now to work out the amps at 12 volts you divide 69 watts by 12 volts and you get 5.75 amps. Since amps times volts equals watts, this works out at 69 watts (230 times 0.3). This amps usage figure is the power consumption at 230 volts. The figures it gives are 230 volts, 50 hertz, 0.3 amps.

You have a 230 volt colour TV that doesn't have a watts rating but does give an amps rating.

Divide 25 by 0.85 (85%) and you get about 30 amps. So to work out the amps at 12 volts you divide 300 watts by 12 volts and you get 25 amps on top of that you have the inverter efficiency to add to that figure. If you have a solid state inverter rated at 400 watts you can expect 85% efficiency.

You have a 230 volt juice extractor rated at 300 watts.

To work out the amps you just divide 20 watts by 12 volts and you get 1.67 amps.

You want to use a 12 volt 20 watt light bulb.

You don't need to calculate anything for this as the current draw is already given in amps at 12 volts.

#3000 watts to amps portable#

You have a 12 volt portable radio and cassette player that has a label on the back that says 12 volts, 0.2 amps.Since the size of your battery bank is rated in terms of amp-hours and the meter on your distribution/meter box measures the power coming in from your charging system in amps, it makes sense to convert watts to amps. Work out how many hours each day (on average) each appliance will be used.Find out how many amps or watts each consumes.Select which lights and appliances will be used.There are three simple steps to determine the average daily load: