Original HP Pavilion DV4000 AC Adapter
Input: AC100-240V (worldwide use)
Output: DC18.5V 3.5A
Power: 65W
Connecter size:
Internal Diameter: 1.7mm
External Diameter: 4.8mm
Item Includes: AC Adapter and Power Cord.

The notebook is deeply welcomed by the youth becaues of its lightweight and convenience. The laptop accessories such as laptop battery and Ac Adapters are indispensable in our daily life. But it's hard to choose a fitted ac adapter. You must master some ways to choose one. The AC adapter is a type of power supply which is embedded in an over-sized AC plug. Other names include plug pack, plug-in adapter, adapter block, domestic mains adapter, or power adapter. Informal terms include wall wart, wall cube and power brick. These are typically packaged with electrical devices that do not contain their own power supply.

HP has provided some of the most recognizable laptop lines in business computers, including its ProBook series, its Pavilion series, and its EliteBook series. HP AC adapter is among the most high-quality laptop parts available today. HP's laptop AC adapters are built from rugged plastic to withstand the trials of daily use and travel. Connecting cables are thick enough to withstand abuse, but light enough to remain portable, and are reinforced at any bending points to prevent wear and tear. Power cords are generally removable for greater portability, and include a 3-prong grounded plug for added safety.

Modern HP pavilion adapter ranges in wattage output from 65 watts up to 180 watts, depending on the power requirements of the laptop and battery. Some of HP's smaller more portable Netbooks, the Mini-1000 use a 30 Watt notebook AC adapter. Connector cables have various sizes and shapes of tips to prevent adapters from being plugged into incompatible laptops. This can cause damage to both the laptop and the ac adapter. For this reason, it is extremely important to ensure you find a compatible replacement laptop AC adapter specific to your HP laptop model.