What You Need to Know about an HP Pavilion DV4 AC Adapter
Posted Jan 10 2014 9:26am
Laptop power supply is an important accessory for your Laptop. If it is faulty or broken, it may damage your expensive notebook, or the battery will not get properly charged and your laptop can go dead while you are at work. It is a frustrating situation and a new replacement of original HP Pavilion power supply fixes this problem. An HP Pavilion DV4 Power Cord can be used to charge laptop batteries while the device is turned on or off. You should not use generic laptop power adapter for your HP Laptop as it may not come with recommended specifications.
You should know the factory recommended specs while buying a new Power Supply. The input voltage must be with 100V to 240V, with the frequency range of 50 to 60Hz. The output voltage must be of 19V. You can use a digital voltmeter to check the actual output voltage. You should check some other specs while buying a power supply unit for your HP laptop. The value for output current should be around 4.74A. The HP Pavilion DV4 power supply must require 90W of power for the charging operation. The value for relative humidity must be of 5% ~ 85%RH. You should choose a power supply with a light weight connector for easy portability. A connector with 5.5*2.5 mm size is the best choice.
When you buy an HP Pavilion DV4 Adapter, you get a unit of AC Adapter and a power cable. Always choose an Adapter with a long cable; it helps you plug in the laptop from a comfortable distance. If the power cord is shorter in length, you may not be able to use it everywhere where electrical outlets are not within easy reach. You can choose the wall plug according to your country standard. two point, three point plugs are available with the US, UK, EU, IT, AG, AU and CN standards.
You should be very careful about the quality while buying a brand new HP laptop adapter for your laptop. You should check whether it is brand new or OEM product. Always insist on premium quality adapter for your HP notebook. You should also check whether the AC power supply meets all the FCC, CE and UL safety guidelines or not. The adapter should come with an input voltage filter system. It is a safety feature that prevents surges and protects your notebook from every electrical hazard. You can search online to compare different power adapters for your HP laptop.