What if the laptop battery doesn't charge?

In general, in the case of not charging, computer to maintain the use of words, it can only be maintained for 2-3 hours or so, as many people sell the computer said long standby, 6 hours, or even more than 10 hours, this is a form of advertising, unless you really try to let the computer standby and not use. But recently a friend came over to consult, said his Win7 32-bit system computer battery can not charge, the problem is what causes it?

1. Some brand computers, according to the small part of the well-known, including Sony, Lenovo, Dell and other brand computers, will be equipped with their own notebook power management software, if the user inadvertently selected in the operation of the battery protection mode, it will lead to AC power in the case of the battery charge.

Solution: You need to find power management software in the computer, the protection mode can be canceled.

2. Hardware problems. Sometimes, because the battery itself hardware failure caused by the inability to charge, this time, we can try to reboot the computer, or unplug the power to plug the best way to solve the problem. If it's not too much trouble, we can install some hardware detection applications in the computer, keep an eye on the battery loss, and repair the related faults.