does amps matter for laptop chargers?
95924
Input, output, doesn't really matter as long as you are comparing same side thing on both chargers. Since you need charger of certain voltage for the laptop to work, your output voltage is set. If you use charger with less than specified Current rating (Amps) you end up with less than specified power to laptop.
55892
A 1 kilowatt hour is 1 kilowatt for an hour, so a device that uses 1,000W and ran for 5 hours would need 5 kWh of power. Laptop batteries will sometimes say what their watt hour rating is. If it's rated at 150 wH, this means it can output 150 watts for an hour. Most laptop adapters are 60-90 watts.
1424576
Nearly all AC to DC converters, by design, draw a very small idle current when you aren't charging any devices. Cheaper designs consume more while some good designs consume less, but unless there's a physical switch on the USB socket it will always consume some power while waiting for a device to be plugged in.
956920
Most Dell AC Adapters can operate between 100 VAC to 240 VAC (Volts Alternating Current) so are able to operate effectively overseas. The label on the rear of the Adapter brick will inform you of the adapters input voltage range. Note: You will need a plug adapter to fit the wall outlets while overseas.
672072
If your laptop has a built-in USB-C port, then you'll be able to charge your laptop via a USB-C cable - you just have to make sure the cable has a plug adapter (the box-shaped plug at the end of your phone charger than can plug into an outlet). Some laptops, in fact, use a USB-C cable as the primary charger.
1445807
For wired, USB charging, the most common chargers will provide 5W (1A at 5V), which is sufficient for most smartphones today. Better is a 10W (2A at 5V) charger. Wireless chargers are rated up to 15W for the recent specifications, although many devices will only charge at 5W, 7.5W or 10W.
610448
In fact, the majority of mobile devices, tablets and laptops have battery chargers that can work on 220 volts used in Europe and countries in the world, as well as 110 volts (the US). Cell phone chargers can work with different frequencies from 50 Hertz to 60 Hertz.
906119
High Amp Output A good charger would provide you with at least 2.1 Amps (or 2100 mA) per USB port. ... So if you're looking for a high-speed dual USB car charger, you want to look for a 4.8A USB car charger. This means that each USB port provides 2.4 Amps, which is more than sufficient to charge two iPads simultaneously.
588782
It's likely to be one of three problems (or a combination of them): You could be using the wrong kind of power outlet, the wrong kind of wall plug, or the wrong kind of USB cable. In each case, the slow charging has to do with amps: The rate at which electrons are flowing into your gadget.
226258
As long as the voltage is the same on the adapter and on the device (also, I have 9V DC and 9V AC adapters, do not mix these up) and be sure the current required is less than the amount that the adapter can source otherwise you risk overloading the power supply.
760071
The amps that computers draw fall anywhere between 0.25 and 2 or more. A desktop PC uses up to 1.67 amps per hour with the printer and speakers running. So, a computer that runs as long as eight hours a day needs up to 5 amps.
223759
The difference between either of those chargers and the 5-watt charger that comes with an iPhone will be just as dramatic. That's because the difference between the iPhone and iPad adapters is the rated amperage. An iPad charge brick is rated to handle 2.1 amps, while the smaller iPhone charger is rated for just 1 amp.
1334581
It is quite straight forward that equipment rated for 110V/60Hz won't work in India and if used will get fried. The phone chargers,laptop chargers and the Iphone chargers are all designed to work universally. Hence, just a universal travel adapter will allow you to use them without any problem.
15804
Most phones and other devices are capable of handling 5V/2.4A. For fast charging, you're looking at something that bumps the voltage up 5V, 9V, 12V, and beyond, or increases amperage to 3A and above. Keep in mind, your device will only take in as much power as its charging circuit is designed for.
762730
All USB cords carry the same 5V, regardless of if it's got a 30-pin head or a microUSB plug, whether it's first-party or third. That means DC chargers are now brand agnostic; if the volts, amps, and connectors are compatible, an Apple wall wart can charge an HTC just as easily as a Samsung.
783157
Surface devices will only charge with USB 2.0 or 3.0 compliant chargers. ... Low voltage USB-A chargers with a USB-A to USB-C cable won't work at all. For best performance, we recommend using a USB-C charger that provides at least the same wattage as the power supply that was included with your Surface.
1473756
The 2A port is capable of passing twice as many electrons per second. The current draw (Amperes) is controlled by the device you plug in. So if you plug a 1A device into a 2A charger, it will still only draw 1A. ... If you plug a 2A device into a 1A charger, you will only get 1A.