Small Residential Freezer
How would you calculate how many amp hrs would be needed to run a small residential freezer for say 12 hours with an inverter when you (with out buying it and testing it) when you have no idea how man...
Forum Discussion
One recommendation.. IF you are using an inverter to power a residential type fridge or freezer or any other 120 volt device.
Use 10, not 12.6 as your battery voltage..
here is why.
First, it really makes the math easy. I mean in all of mathmatics NOTHING is easier than multiplication by or division by 10 unless it is adding/subtracting zero.
Second. the inverter is less than perfect, 100 watts in, at the most gets you 90 out, so... we just lost 10%, there is also loss in the cables, wires and connectors, Way more than you might think. The result is that using 10 as the battery voltage comes way closer than 12.6 does.
Use 10, not 12.6 as your battery voltage..
here is why.
First, it really makes the math easy. I mean in all of mathmatics NOTHING is easier than multiplication by or division by 10 unless it is adding/subtracting zero.
Second. the inverter is less than perfect, 100 watts in, at the most gets you 90 out, so... we just lost 10%, there is also loss in the cables, wires and connectors, Way more than you might think. The result is that using 10 as the battery voltage comes way closer than 12.6 does.
