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The more expensive pure sine wave inverters have the same quality AC electricity that’s supplied to a home receptacle. They’ll power all small appliances provided they’re within the wattage capability of your cigarette lighter socket and inverter. Here you find more details on power inverter for laptop in car.

One way to go is to find an isolation transformer to go between the inverter and your sensitive electronics. A 1 to 1 transformer gives a good sine wave output curing the hash that fries the digital electronics. Make sure it is rated at enough power to match the inverter.