How to Choose the Correct LENOVO ThinkPad X240 Battery
Before you buy any AC/DC laptop adapter, please make sure the AC/DC laptop adapter will give you the correct voltage and suitable current output. To find out the voltage & current, turn your laptop over and look for a label, sticker or writing which shows the voltage and current, it should look something like the examples below. The first thing to consider for the LENOVO ThinkPad X240 Battery is the 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 attached to it, such as 19.5V, 20V, 16V and so om. This information is also available on the original adapter, if it is available. The second thing to look for is the current output needed for the For LENOVO Laptop Batteries. This number will have an A of mA associated with it. For example, it may say something like 4.74A ,4.62A, 6.32A or 950mA. These numbers ensure that the power going to your machine will be acceptable and keep it operating within normal parameters. Not paying attention to either of these numbers could cause the electrical systems in the computer to malfunction and quit working altogether.