Having an extra laptop adapter for a Dell PA-20 laptop is probably a good idea. For those that are constantly on the go and need to have power at all times, getting a replacement 45W DELL PA-20 AC adapter is a must. Compatible electronic accessories are built to last by using high quality electronic materials and adjusting to meet or exceed OEM specifications. A cheap Dell PA-20 adapter 40W does not necessarily mean it will not work like the original if it is the right compatible replacement.
A compatible 19.5V 2.31A 45W Dell laptop charger should fit most models and include the compatible part numbers such as 0GM456, LA45NS0-00, and more. To ensure the compatible accessory meets ones needs, it is vital to look at the laptop model number and adapter model and then look at the product page for the adapter. This will help one find a perfect match.