Home Windows. Power Requirements All laptops are not created equal and neither are their power requirements. Proprietary Hardware Laptop chargers are not meant to mix. Cheap Knock-offs Some chargers come cheap while others can cost quite a bit. MacBooks MacBooks are a somewhat exception to this rule. Get daily tips in your inbox Newsletter. More powerful chargers are 90W or sometimes even W. But what if you lose your laptop charger? Does that mean that you will no longer be able to use the laptop or charge it ever again?
That is obviously not true; there are a myriad of different ways by which you can charge the battery and keep your laptop running smoothly. A lot of people have the question about whether they can use a different brand of charger with their laptop. It may seem like a simple task, but the real difficulty is in finding a decent charger that you can use with your laptop. There are many things that you have to check before you do that, however.
For example, you need to make sure that the barrel plug matches the port on your laptop. The voltage specifications of your laptop and the charger need to match as well. Most laptops nowadays require a voltage of at least However, do voltage and amperage have to be the same to be safe? I would suspect that a higher voltage would wreck the laptop or battery, as with a higher amperage. I don't have a great knowledge of power, however. These are my guesses; could you please verify each and elaborate?
I'd like to learn why something is good or bad. Do both the input and output specs have to match the criteria? Or is only the output important? Practically, you need the same voltage for a correct charge. But it's not that simple. Certain chargers state the voltage a little different, which is not important. Example: An cell which is typical for notebooks has a full charge voltage of 4. A 4 cell in series would sum to So practivally any charger rated between Now for the logic of good and bad in the case of good compatible voltage: in the case of higher charger current, there is no problem because the cells and circuits will draw the power they need, no more.
So the practical effect is that the charger will be less hot won't work at full potential. In the case of the charger with less current, the risk is that the cells will demand higher current from it and it will be unable to provide that and end up being overheated or even burned. Her articles have appeared on various websites. Williams briefly attended college for a degree in administration before embarking on her writing career.
Can Laptops Share Power Cords? By Jane Williams. Power Requirements Not every laptop requires the exact same number of volts, so any adapter you plan on sharing among multiple laptops should provide the proper wattage range to power the machines. Connector Tip Although the energy output rating is an important detail to watch for when looking for an adapter to share between laptops, the proper wattage does no good if the connector tip doesn't fit your particular machine. Universal Chargers Once you've determined the minimum wattage necessary for your laptops, you can minimize the problems associated with the different connector tips by shopping for a universal adapter.
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