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How Large an Inverter Can a Sedan Power?

1 Answers

OscarFitz

07/29/25 5:05pm

Inverters generally have a conversion efficiency of around 80%, while the fuse for a typical car cigarette lighter is only 10A, and some are 20A. If connected to the car cigarette lighter, a sedan can power an inverter of up to about 150W. For inverters with higher power, they need to be connected to the car battery. Specific details are as follows: 1. Battery Current Capacity: If connected to the car battery, a sedan can power an inverter of up to about 3000W, but the exact capacity depends on the car battery's current. Most car batteries do not exceed 100A, meaning they can only power an inverter of around 1000W. Using an excessively large inverter may damage the battery and shorten its lifespan. 2. Inverter Usage: Inverters must be used strictly according to the user manual. Since the output voltage of an inverter is 220V AC, extra caution is required when using it in the confined space of a car. Additionally, the operating environment temperature of the inverter should not exceed 40°C, so avoid placing the inverter in direct sunlight or near the heater outlet.

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