How to Choose Laptop AC Adapter for Your Laptop

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Whether you need a replacement dell laptop power adapter for your laptop because the original was damaged or lost, choosing a new one isn't that hard--in fact, you don't even have to reference the old power adapter when selecting a new one. Choosing a new laptop adapter is simply about compatibility. And finding your laptop a new partner is all about making sure that their power rating matches.
Instructions
1 Check the laptop's model number. Use the search engine on a compaq presario cq61 charger vendor's website to search for a compatible power adapter by your laptop's model number (see Resources).
2 Locate the power specifications of your laptop--usually printed on the bottom or near the laptop's power port. Locate the amperage (AMPs) and voltage (V) rating of your laptop on the power specifications list.
3 Match your laptop's power rating with that of the aftermarket Dell XPS 15 L502 adapter. The voltage of the power adapter must match the voltage of the aftermarket adapter. The amp rating of the aftermarket adapter must meet or exceed the requirements of your laptop.
4 Select a power adapter for compaq presario cq61 tip from the aftermarket power adapter's kit. This fits firmly into your laptop's power port. The selected tip should not fit too loosely or need excessive force to fit the laptop's power port.
Tips & Warnings
If you have to pay the extra money for a universal kit as opposed to a replacement hp probook 4330s adapter, try selecting one with extras--like car adapters and European plug-ins. The cost may be a little more for the extras, but having to pay for two separate adapter kits as opposed to a bundled kit can be more expensive in the long run.
The power rating of your laptop and your adapter is the most important factor--they must be compatible. Selecting a power adapter solely on the basis of its fitting your laptop can lead to damage of both the laptop and the adapter.