Helpers Lab 90W 65W 45W Laptop Charger Compatible for HP Laptop Envy EliteBook TouchSmart Folio Pavilion Stream Spectre Zbook chromebook Notebook PC Adapter Power Supply Plug Cord - 4.5 * 3.0 mm- 19.5V 4.62A

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12V-24V Suitable for Cars Trucks RV SUV BUS This power inverter for laptop can be also used in boat. Open you new 12 volt power world.

Connector size

ø4.5 * 3.0mm (as shown in the Picture)

USB QC3.0 Fast Charging

USB Port with Quick Charge 3.0 is faster than common chargers. Give you a high speed.suitable for many electronic devices. Charge Smartphone, Galaxy ,Tablet, Power bank, Humidifier, Driving recorder while charging your laptop.

Meet these 4 conditions, our car charger can charge your laptop

  1. Your laptop charging interface is the same as shown in the picture (blue connector)
  2. The power of the cigarette lighter of your car is 12V-24V
  3. Your notebook Volts is 19.5 V
  4. Your notebook power does not exceed 90 Watts

You can check with the Output Voltage and Output Current on the label of your original charger or the bottom/back of your laptop.

The V stands for Volts and the A stands for Amps

Watts = Amps x Volts