The Laptop which i use has a 7Gb of Ram, 500gb HDD, 17″ Display screen which is actually a pretty good configuration for a portable computer, along with which this HP dv7 Laptop offers me around 3 hours of battery backup which is another advantage. Now the main issue with this is that whenever there is a power cut, the Laptop battery slowly starts draining, a natural activity but when the power is back and the Laptop is plugged into the power source, the charging activity does not start. In the beginning i felt this was a problem with the battery like it would become a dead battery and may be because of using the battery backup it got overheated and these new batteries would have a technology where in after they reach certain temperature only the charging would resume, but this is not the actual situation.
The batteries even when they get cooler, still don’t charge when plugged in, and this resumes randomly at any time without any regular phenomenon, which is a confusing problem. Now the next option would be checking the power cables, adapter and plugged in switch but since all of these show connected and display light at the connection point, this clearly indicates that this is also not the problem and we need to look into other options for this. In the older laptops there was no option to find out the battery backup, the same situation which does not display the left over battery in the UPS because these batteries are not configured with the device drivers to recognize them.
This is quite a panic situation because if the power connection is again disconnected, the battery wont help you out because there is no backup left. Hence you need to fix this as soon as possible. One possible fix for this is to update the drivers of the battery in the Device Manager to make sure that the latest drivers are used to recognize the battery. Right Click on My Computer > Properties > Device Manager.
Here you will find all the connected devices information and their drivers details. Click on the Batteries column and you will find a list of all the batteries connected to your computer.
Click on the ‘Batteries’ option and it will display a list of different batteries. Next right click on ‘Microsoft ACPI-Complaint Control Method battery’. Select the Uninstall option.
Now next you will be shown a confirmation window, asking you to confirm the device uninstallation. Click on OK to proceed.
Next you will find that the device is removed from the ‘Device Manager’ and next time you restart your Laptop, it will automatically configure the drivers for that device and the specific laptop battery not charging issue can be resolved. Other than if the problem still continues you need to contact the service center and get it replaced.