benburnett
Senior Member
- Joined
- Oct 5, 2006
- Messages
- 771
I have an electrical question for anyone who knows enough to help. I have a customer that has an electrical requirement that we need to meet for him. He needs to run a machine that draws 2.5 amps using 115 Volt.
He has a 400 watt inverter hooked up to a 12 volt battery for the machine.
According to my research, the following are the formulas to figure out the amp draw by the inverter when being used.
Watts = volts x amps 2.5 amps x 115 volts = 287.5 watts
Amp = watts / volts x 1.11 287.5 watts / 12 x 1.11 = 26.5 amp draw per hour.
Can anyone confirm this for me or disprove it for me. Would appreciate any help.
He has a 400 watt inverter hooked up to a 12 volt battery for the machine.
According to my research, the following are the formulas to figure out the amp draw by the inverter when being used.
Watts = volts x amps 2.5 amps x 115 volts = 287.5 watts
Amp = watts / volts x 1.11 287.5 watts / 12 x 1.11 = 26.5 amp draw per hour.
Can anyone confirm this for me or disprove it for me. Would appreciate any help.