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 volt = 660 watts 3 Amps * 110 volt = 330 watts
| Type Amps & Voltage of your Appliance | |||
| Amps: | |||
| Volt: | Wattage: | ||
How Long Can I Run The Inverter On My Battery?
The difference is the type of battery you want to run your power inverter on. Most vehicles run off a 12 volt battery. The 24 volt are generally used in large trucks or industrial motors. For more information please visit PowerBright.com
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Battery Capacity |
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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 |