Some sensitive equipment requires a true sine wave, like laptop computers, tool battery chargers, professional audio/video equipment, certain medical devices and variable speed tools. True sine wave inverters are the most expensive, but they also deliver the most consistent, highest quality wave output. The Vector power inverter line is based on modified sine wave technology. They are also small and highly efficient. These types of inverters are the most popular and affordable. Modified sine wave inverters deliver power that is consistent and efficient enough to run most devices adequately. Power inverters produce one of two different types of wave output: If your planned power consumption exceeds 2000 watts, you should choose a generator, as the draw in the battery will rapidly deplete its power. If you plan to operate a refrigerator, freezer, washer, dryer or well system, then a generator is a better choice. Generally, an inverter is more economical power alternative to run items under 1000 watts, suitable for small appliances, TVs, VCRs, DVD players and other low load devices. Whether to use an inverter or a generator depends on the type of load and how often you will need emergency AC power. On your boat, you can plug in devices like a digital movie camera to take videos after the camera’s battery runs low, or brew up a pot on-board with your coffeemaker. The toaster, blender, and boom box can all still be used. A DC to AC power inverter is great for camping at parks that do not provide electricity. Inverters normally have one or more standard outlets to power laptops, small-screen TVs, video game players or portable DVD players and other devices. Larger units are often hardwired into vehicles, RVs or boats. They might also come with jumper-like cables for connecting directly to a battery. Most power inverters under 300 watts can be connected to a vehicle’s battery through the DC (cigarette lighter) plug on the dashboard. Doing this will ensure you select the correct inverter the first time. The estimated watts for the appliances below are estimates please check your manual or the appliance itself for the actual wattage required. In this case, you would want to select an inverter rated at least 1400 surge watts to handle start-up needs. If your inverter only supplies 1000 watts, you will not be able to start it up. For example, a miter saw that runs at 700 watts might require 1400 watts to start up. If the item is motor driven, it requires additional start-up (surge) wattage (typically 2-3 times the continuous wattage required) to start the device. For example if your DVD player draws 100 watts and your laptop another 100 watts, a minimum 300-watt inverter is recommended. To determine if several appliances can be operated at the same time, simply add up their wattage ratings to see if the total falls within the specifications of the power inverter.įor example, if you have a two-outlet inverter and will be plugging in 2 devices at once, add up the total wattage of both devices, then add at least 50% more to account for peaks or spikes in the power draw. Wattage rating can also be calculated by using this formula: Many home appliances and power tools have their wattage rating indicated on the product itself. The amount of wattage you will require depends on the total draw of the devices you’d like to use. Power inverters come in many sizes, measured in watts.
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