Can You Charge A Laptop With A Car Cigarette Lighter

Can You Charge a Laptop with a Car Cigarette Lighter?


In today’s fast-paced world, having access to power for our electronic devices, especially laptops, is crucial. We often find ourselves on the go and in need of a quick charge. So, the question arises: is it possible to charge a laptop using a car cigarette lighter?

The answer is yes, but with certain conditions and considerations.

Understanding Car Cigarette Lighters

Car cigarette lighters, also known as power outlets or auxiliary power outlets, provide a convenient way to power various devices in your vehicle. They typically have a 12-volt direct current (DC) supply and can deliver a current of up to 10-15 amps. However, the available power depends on the vehicle’s electrical system.

Laptops and Power Requirements

Laptops, on the other hand, require higher power to charge their batteries. Most laptops have AC adapters that convert household alternating current (AC) to DC power. The power requirements vary depending on the laptop model, but typically range from 60 to 90 watts.

Using a Car Power Inverter

To bridge the gap between the car’s DC power and the laptop’s AC requirements, you need a device known as a car power inverter. Power inverters convert the 12-volt DC power from the cigarette lighter into 110-volt AC power, which is compatible with laptop chargers.

Steps to Charge a Laptop with a Car Cigarette Lighter

  1. Choose a suitable car power inverter with a power rating higher than the laptop’s power requirements.
  2. Plug the power inverter into the car cigarette lighter.
  3. Connect the laptop charger to the inverter’s AC outlet.
  4. Plug the charger into the laptop.
  5. Start the car’s engine to ensure a stable power supply.
  6. Monitor the laptop’s charging status to ensure it is receiving sufficient power.

Precautions and Considerations

  • Do not leave the power inverter and laptop charger plugged in and unattended for extended periods.
  • Ensure the car’s battery is healthy and can handle the additional power draw.
  • Use high-quality equipment and cables to minimize power loss and prevent overheating.
  • Avoid running power-intensive applications or charging multiple devices simultaneously to prevent exceeding the inverter’s capacity.
  • Keep the car well-ventilated to prevent overheating of the inverter and laptop.


While it is possible to charge a laptop with a car cigarette lighter using a power inverter, it is important to be mindful of the power requirements, limitations, and safety precautions. By following these guidelines, you can enjoy the convenience of charging your laptop on the go without compromising its battery life or your safety.

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