Understanding unexpected amp draw.
I have a 12v accessory plug socket that has a light on it and I was curious how much keeping it plugged in would affect my battery. (everything I read said it wasn't an issue, but curiosity sent me ch...
Forum Discussion
Yep
It's working correctly
You took two measurements at different voltages
And got confused because the amps reading went up, but forgot the voltage went down
Just the reverse of an inverter, but same idea
12v * 50 amps = 600w input
120v * 5 amps = 600w output/ load , not including the conversion loss
It's important to remember that with electricity, it's about power in and power out, always compare the Watts ,(do the math)
There will always be a difference because of conversion loss
But the difference should not be too great
If there is a very large difference, then there is a problem with the conversion device
It's working correctly
You took two measurements at different voltages
And got confused because the amps reading went up, but forgot the voltage went down
Just the reverse of an inverter, but same idea
12v * 50 amps = 600w input
120v * 5 amps = 600w output/ load , not including the conversion loss
It's important to remember that with electricity, it's about power in and power out, always compare the Watts ,(do the math)
There will always be a difference because of conversion loss
But the difference should not be too great
If there is a very large difference, then there is a problem with the conversion device
