How to Reset a Laptop Battery to Charge
Unless a battery is completely drained, over time it begins charging less and less. If your laptop seems to run for less and less time each time you unplug it from the wall, you probably need to reset it. This is a simple process.
Disable all power-saving and automatic shutdown programs or routines on your computer. If your laptop power plan dims the screen or goes into sleep mode after a few minutes of idle time, disable that.
Unplug the laptop's AC adapter cord.
Drain the laptop battery. You can just use the laptop until it shuts itself off, or you can wander away and come back when it's gone dark. Make sure that you do not turn it off or allow itself to shut down to conserve power; you want it to run out of power entirely. If you happen to be in a hurry, feel free to exhaust the computer more quickly by playing a 3D graphics-intensive computer game or watching a bit of online video content.
Plug the AC adapter back in and wait for the charging indicator light for your laptop to come back on. Once you see that the laptop has begun charging again you are free to do whatever you like, so long as you do not turn the computer off until the battery is fully charged.
Tips & Warnings
- You should repeat this process once every few months, before you start to notice the battery charge dropping off.
- If the battery continues to drain faster than it should, you may need to consider replacing it.
- As with all appliances, be careful while handling the AC adapter cord. It is plugged directly into the wall socket.