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I had so much trouble trying to post that table I missed a lot.
If you are using a modified sine wave inverter for your labtop computer it will ruin the batteries in your labtop or any rechargable batteries. It's because the charger is a transformer less capacitive charging device that just does not like modified sine wave. It overcharges your rechargeable batteries, it cooks them. It also uses a lot more power as you have noticed doing that.
Generally most motors need 3 times the rated wattage (amperage) of the motor, refrigerators need up to 5 times.
This all has to do with the amperage lagging a bit behind the voltage changes.
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