What is Battery Amp Hour Rating Needed to Power 1,500 Watts for an Hour

Question:

I’m looking to power a 1750w or 1500w blender with a inverter and car battery. How long will a car battery last for? Looking to power the blender for around 8 hours trading .

asked by: Cameron

Expert Reply:

In order to determine the length of time that an automotive battery will last when using an inverter pulling 1,500 watts of power, you will need to know the amp hours of the battery that you plan to use. For that much wattage though I can't imagine very long if it's a standard battery.

Since 12 watts = 12 volts that means that you'd need a 125 amp hour rated battery to power the blender for one hour.

1,500/12 = 125

expert reply by: Jameson C