All new laptops come with AC adapters. An AC adapter is a small device that connects an electronic device to a wall outlet. Laptop AC adapters are used for charging laptop batteries and also used to supply power directly. It enables electricity from the wall outlet to travel through the adapter into the device, thus providing it power and giving it the ability to operate. If your AC adapter breaks, this can be a major problem.

One big misunderstanding will occur when it comes to replace the AC adapter for your laptop. That is, you have to purchase the replacement AC adapter from original manufacturer. But actually, this is not necessary. You could save money on a completely compatible and 100% reliable replacement AC adapter for your laptop if you buy it from a secondary AC adapter retailer. Just make sure it’s labeled for your MacBook, PowerBook, or iBook and meets your current adapter specs.

Choosing the correct laptop ac adapter is all a matter of voltage, output power, and proper connection. If all of these things do not match the original specifications of your current laptop ac adapter, than a new laptop adapter will likely not work on your machine and may potentially cause a lot of damage.

Following are some tips for choosing a right laptop ac adapter from voltage, output power, and proper connection.

1. Find the right “input voltage” The easiest way to check this is to turn the computer over and see if there is a voltage listed anywhere on the bottom of the machine. A sticker may be affixed with this information and other similar laptop specs listed. It should be a number with a V such as 19.5V. This information is also available on the original adapter, if it is available to you.Always look for AC adapters accept 100~240 voltages. 100~240 voltages AC adapters will go with you worldwide. You do not need to carry 2 adapters anymore.

2.Finding the right “output voltage” Just for example,Toshiba PA3546E-1AC3 Laptop AC Adapter it may say something like 9.5A, 180W etc. This number will ensure that the power going to your machine will be acceptable and keep it operating normal. Only use the laptop AC adapters output the matching voltage of your laptops. Not paying attention to either of these numbers could cause the electrical systems in your laptop to malfunction and stop working altogether.

3.Finding the proper “connection” The other important step is simply to make sure the laptop ac connection fits the port in your notebook PC. Basically, laptop AC adapters comprise of 2 ends. One end is male power outlet. You use this end to plug into wall power outlet. The other end is called “TIP” which you will plug this tip into the “DC IN” in your laptop. The voltage and output current of the laptop ac adapter will not matter if it is not able to be connected.

Also, laptop AC adapter manufacturers are now promoting “universal AC adapters”. This emerging adapters can be used with multiple devices. They can accept 100~240 input voltages and also adjust the output voltage to match device automatically.

Now, you already know the basic knowledge to find the right laptop AC adapter for your laptop. Laptop Battery www.laptopacadapter.com.au Looking for high quality but cheap laptop battery or AC adapter? We are retail and wholesale agency of the leading manufacturers that provide laptop battery & AC adapter of HP,Dell,Lenovo,Acer,Toshiba,Sony,Apple etc.