[bikestuff]

To add to what Michael Said....

So the DC amp-hour of my battery bank is 600 amp-hours. (100 AH per battery x 6 batteries).
Watts are defined as Amps x voltage so my battery bank has (12.5 x 600) = 7500 Watt - hours (DC)

Here is where it gets interesting.

Lets convert the 7500 DC watt-hours to AC. (7500 watt-hours / 115VAC) = 65.2 amp-hours (AC).
Taking into account the inefficiency of the inverter means that we only get about 95% of this number or 62 amp-hours (AC).

Now that we have the AC Amp-hour capacity...lets use it for some examples...

The Headhunter 120 VAC pump consumes 10 amps while it is running. It can run for 6.2 hours (62 amp-hours / 10 amps) before discharging your battery bank.

A typical microwave may pull 8 amps while it is running. So...62/8 = 7.75 hours run time.

Remember that all the appliances only pull amps while they are working. The refrigerator pulls nothing until the compressor kicks on. To truly understand your battery capacity, you will have to estimate the amount of time each draw will be "on".

Hope this helps!

bill


Here is a list of appliances and their typical AC draws....

Appliance or Electronic Equipment Estimated Amps
Air Conditioner (X number of A/C) 12-16 Amps
Blender 5-6 Amps
Coffee Maker 5-8 Amps
Compact Disc Player 1 Amp
Computer (Laptop) 2-3 Amps
Converter 1-8 Amps
Crock Pot 1-2 Amps
Curling Iron <1 Amp
Drill 2-6 Amps
Electric Blanket 0.5-1.5 Amps
Electric Fan 1 Amp
Electric Water Heater 9-13 Amps
Electric Skillet 6-12 Amps
Hair Dryer 5-12 Amps
Iron 5-10 Amps
Light (60 watt % 120V) <1 Amp
Microwave 8-13 Amps
Microwave (Convection Oven) 13 Amps
Refrigerator in AC mode 5-8 Amps
Space Heater 8-13 Amps
Television 1.5-4 Amps
Toaster 7-10 Amps
Vacuum (handheld) 2-6 Amps
VCR 1-2 Amps
Washer/Dryer 14-16Amps