How Do I Calculate The Wattage Of An Appliance?
If the label does not specify the wattage, but you know the Amperage (A), you can calculate it using the following formula: Amps (A) * voltage (V) = Watts Example: 3 Amps * 220 Volts = 660 Watts | 3 Amps * 110 Volts = 330 Watts
Type Amps & Voltage of your Appliance | |||
Amps: | |||
Volt: | |||
Wattage: |
How Long Can I Run The Inverter On My Battery?
Please note this calculator will only provide an approximation. Actual run times will vary based on many factors including but not limited to: battery quality, cabling, energy draw and replenishment.
Battery Capacity Choose your Battery type and enter Amps/Hrs of your battery & wattage of your appliance: |
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Battery: | Total Hrs: |
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Amp/Hrs: |
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Wattage: |
Total Min: |
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Operating Time For Common Electronics
Inverter Output Power (Watts) | Typical Load | Battery Size | |||||
BCI Group Size | 22NF | 24 | 27 | 8D | dual 8D | ||
Reserve Capacity | 90 Min | 140 Min | 180 Min | 400 Min | 900 Min | ||
Amps-Hrs | 50 | 75 | 100 | 200 | 400 | ||
50 | Stereo System | Operating Time | 9 Hours | 14 Hours | 20 Hours | 40 Hours | 80 Hours |
100 | 19″ Color TV | Operating Time | 4 Hours | 6 Hours | 10 Hours | 20 Hours | 40 Hours |
200 | Computer System | Operating Time | 2 Hours | 3 Hours | 4.5 Hours | 10 Hours | 20 Hours |
300 | Blender | Operating Time | 1.3 Hours | 2.2 Hours | 3 Hours | 6 Hours | 12 Hours |
400 | Power Drill | Operating Time | 1 Hour | 1.5 Hours | 2 Hours | 4.5 Hours | 10 Hours |
600 | Small Coffee Maker | Operating Time | N.R. | N.R. | 1 Hours | 2.5 Hours | 6 Hours |
800 | Small Microwave | Operating Time | N.R. | N.R. | N.R. | 1.5 Hours | 4 Hours |
1000 | Toaster | Operating Time | N.R. | N.R. | N.R. | 1 Hour | 3 Hours |
1500 | Full Size Microwave | Operating Time | N.R. | N.R. | N.R. | 0.5 Hour | 2 Hours |
2500 | Hair Dryer & Washing Machine | Operating Time | N.R. | N.R. | N.R. | 0.2 Hour | 0.8 Hours |
Usage Chart For Common Electronics
Electronics | Average Wattage | Recommended 12V Inverter | Recommended 24V Inverter | Recommended Transformer |
CD, Tape, Radio, Receiver System | 250 | XR400-12 | ML400-24 | VC500W |
CRT/Tube TV (Average) | 250 | PW900-12 | ML900-24 | VC750W |
Home theatre | 250 | PW900-12 | ML900-24 | VC750W |
LCD TV (Average) | 200 | XR400-12 | ML400-24 | VC750W |
Plasma TV (Average) | 350 | PW900-12 | ML900-24 | VC750W |
Radio | 71 | XR100-12 | ML400-24 | VC100W |
Rear Projection TV (Average) | 200 | PW900-12 | ML900-24 | VC750W |
Television (Color, Solid State) | 200 | XR400-12 | ML400-24 | VC750W |
VCR/DVD | 21 | XR100-12 | ML400-24 | VC100W |
Game Consoles | Average Wattage | Recommended 12V Inverter | Recommended 24V Inverter | Recommended Transformer |
Nintendo Wii | 119 | XR400-12 | ML400-24 | VC300W |
Playstation 3 | 197 | XR400-12 | ML400-24 | VC500W |
Xbox 360 | 187 | XR400-12 | ML400-24 | VC500W |
Computer & Accessories | Average Wattage | Recommended 12V Inverter | Recommended 24V Inverter | Recommended Transformer |
PC desktop (Average) | 350 | XR400-12 | ML400-24 | VC500W |
PC laptop (Average) | 100 | XR175-12 | ML400-24 | VC300W |
Computer (With Monitor and Printer) | 365 | PW900-12 | ML900-24 | VC1000W |
Tools | Average Wattage | Recommended 12V Inverter | Recommended 24V Inverter | Recommended Transformer |
Drill | 500 | PW900-12 | ML900-24 | VC1000W |
Power Tools (Circular Saw) | 1800 | PW2300-12 | ML2300-24 | VC3000W |
Small Appliances | Average Wattage | Recommended 12V Inverter | Recommended 24V Inverter | Recommended Transformer |
Air Conditioner (Small to Medium Unit) | 800-1500 | PW2300-12 | ML2300-24 | VC2000W |
Air Conditioner (Medium to Large Unit) | 3500 | PW6000-12 | N/A | N/A |
Blender/food processor (Average) | 750 | PW1100-12 | ML1500-24 | VC1500W |
Cell phone charger (Average) | 65 | CW150 | ML400-24 | VC100W |
Clock | 3 | XR100-12 | ML400-24 | VC100W (must be 50/60Hz compatible) |
Coffee Maker | 1000-1800 | PW2300-12 | ML2300-24 | VC2000W or TK1650 (if used overseas) |
Curling Iron | 1500 | PW2300-12 | ML2300-24 | VC2000W |
Fans | 60 | XR400-12 | ML400-24 | VC300W |
Flat Iron / Curling Irons | 550 | PW900-12 | ML900-24 | VC750W |
Hair dryer (Average) | 550-1850 | PW2300-12 | ML2300-24 | VC2000W or TK1650 (If Used Overseas) |
Hair Dryer (Hand Held) | 1600 | PW2300-12 | ML2300-24 | VC2000W |
Iron | 1400 | PW2300-12 | ML2300-24 | VC2000W |
Space heaters (Average) | 1500 | PW2300-12 | ML2300-24 | VC3000W |
Appliances | Average Wattage | Recommended 12V Inverter | Recommended 24V Inverter | Recommended Transformer |
Air Conditioner (12,000 BTU) | 1500 | PW2300-12 | ML2300-24 | VC3000W |
Air Conditioner (36,000 BTU) | 4500 | PW6000-12 | N/A | Not recommended to use with transformer due to high wattage - would need to be hardwired |
Blender | 385 | PW900-12 | ML900-24 | VC750W |
Bug Zapper | 40 | XR400-12 | ML400-24 | VC100W |
Chest freezer (1.3 Cubic Ft) | 80 | PW900-12 | ML900-24 | VC750W |
Chest freezer (3.0 Cubic Ft) | 150 | PW900-12 | ML900-24 | VC1000W |
Chest freezer (6.0 Cubic Ft) | 240 | PW2300-12 | ML2300-24 | VC2000W |
Clothes Dryer | 5000 | PW6000-12 | N/A | Not recommended to use with transformer due to problems with Hz (cycles) |
Coffee Maker (Auto Drip) | 1165 | PW1500-12 | ML1500-24 | VC2000W |
Convection Oven | 1500 | PW3500-12 | ML3500-24 | VC3000W |
Dehumidifier (20 Pints, Summer) | 450 | PW900-12 | ML900-24 | VC750W |
Dishwasher (Dry Cycle) | 1200 | PW1500-12 | ML1500-24 | VC1500W |
Disposal | 420 | PW900-12 | ML900-24 | VC750W |
Fan (Ceiling) | 80 | XR400-12 | ML400-24 | VC200W |
Freezer (Automatic Defrost 15 Cubic Ft) | 440 | PW900-12 | ML900-24 | VC750W |
Fry Pan | 1200 | PW1500-12 | ML1500-24 | VC1500W |
Garage Door Opener | 350 | PW900-12 | ML900-24 | VC500W |
Humidifier (Winter) | 177 | PW900-12 | ML900-24 | VC500W |
Microwave | Largest Size | PW2300-12 | ML2300-24 | VC2000W |
Microwave Oven | 1500 | PW2300-12 | ML2300-24 | VC2000W |
Mini Fridge (Average) | 60 (Standby) | PW900-12 | ML900-24 | VC500W |
Mixer, Hand | 100 | XR400-12 | ML400-24 | VC300W |
Refrigerator/Freezer (Frostfree, 17.5 Cubic Ft) | 450 | PW1100-12 | ML1500-24 | VC1000W |
Satellite Dish (Includes Receiver) | 360 | PW900-12 | ML900-24 | VC500W |
Standard Fridge (Average) | 230 (Standby) | PW2300-12 | ML2300-24 | VC2000W |
Sub-Pump | 750-1500 | PW2300-12 | ML2300-24 | VC2000W |
Sump Pump (1/2 HP) | 500 | PW1100-12 | ML1500-24 | VC1000W |
Toaster | 1400 | PW2300-12 | ML2300-24 | VC2000W |
Vacuum Cleaner | 1560 | PW2300-12 | ML2300-24 | VC2000W |
Waffle Iron | 1200 | PW1500-12 | ML1500-24 | VC2000W |
Water Pump (1/2 HP) | 460 | PW1100-12 | ML1500-24 | VC1000W |