Universal 90W Laptop Car Charger for Compaq Presario CQ40-410TU - DC Power Adapter with LED Indicator for Travel, Office & Emergency Charging

This Replacement Laptop DC Power Adapter/Car Charger for your laptop enables you to operate your notebook or charge the battery from your Car Cigarette lighter. If you are running your computer on DC power with a battery installed, the adapter charges the battery (if needed) and maintains its charge. When the system is off, the DC adapter will charge the battery and then maintain its charge.

Power4Laptops Branded Car Charger

Input Voltage 12V DC

Output Voltage 19V

Output Amperage 4.74A

Plug Size 7.4mm X 5.0 mm (HP Centre Pin)