High quality laptop power adapter replacement factory in China? Find your laptops wattage: When using our site, this isn’t essential as we list replacement power supplies based on their precise model number, and they’re guaranteed to work for your device. However, it’s always good practice to understand the power requirements for your laptop. The main element you’ll want to look for is the output voltage for the charger (sometimes referred to as DC voltage). Check in your laptop manual for the voltage requirements or look at the original power supply if you still have it. It will often be something like this: OUTPUT: 19VDC 3.42A By multiplying the output voltage and amps you can calculate the total wattage of your machine, in this case 65W after rounding up. Find additional details on wholesale laptop adapter.

I said in the beginning that there were a few caveats. The Voltage needs to be the same or at least very close to that required by the laptop. We would generally not recommend using a charger or more or less than 1V of what is required by the laptop. HP have 18.5V, 19V and 19.5V laptops and we’ve never had a problem with supplying either of these charger for any HP laptop. Fujitsu laptops generally require 20V, but we’ve never had a problem with 19V chargers. You can not however use a 15V charger on a laptop that requires 19V or vice versa. The Polarity must match. Barrel connectors usually have the negative on the outer sheath and the positive inside the inner hole and to be honest we have never come across a laptop charger which is different.

The first thing you’ll want to look at is the adapter’s output voltage. This is extremely important, since a device will only work if it’s receiving the correct voltage. Most laptop chargers are rated for 3, 5, 6, 9, 12, or 18 volts. However, you’ll want to check your owner’s manual or original charger to verify. Voltage corresponds to a circuit’s maximum capacity. If you imagine the circuit as a river, the voltage measures the width of the river bed. Amperage, on the other hand, represents the intensity of power delivery. So a high-voltage, lower amperage charger is like a wide, slow-flowing river. A low-voltage, high-amperage charger is like a narrow whitewater rapids.

If you’re planing to buy an OEM power supply for your laptop, do make sure that its from a reputable company who can provide assurances on their chargers. Universal chargers are commonly available as replacements for many of the leading laptop brands. Some even span multiple brands and are packaged with multiple sets of ‘tips’ or ‘pins’, the part of the charger that connects directly to your laptop. As we covered in our help guide on power supply pin sizes, measuring the pin size required for your laptop can be a real challenge and impossible if you no longer have the original charger to hand. Universal laptop power adaptors are always produced by third party brands, and the same power supply is often re-branded by different companies across popular marketplaces.

This Multiple Laptop Charger comes with a range of tip types making it compatible for use with most laptops. It’s perfect if you’ve lost your charger or own differently branded laptops. It has a slim and lightweight design which makes it ideal for travelling as well as an AC power source so you can plug it into standard wall sockets. We provide the highest quality laptop power adapters with good price and services. We are an experienced manufacturer in doing laptop parts. All laptop adapter chargers are New and passed strict quality assurance procedures such as CE,RoHS,UL,FCC and ISO9001/9002/14001 certifications. CrowBerry ships parts to any part of the world with warmly Pre-sales and After-sales service. See extra information at https://www.laptoprepair.com/.