Here is a viedo about how to charge the laptop battery manually
I have been telling that have purchased new laptops to fully charge the battery and then discharge the battery power completely. Do this 3 times and the battery will 'remember' to charge to 100% every time. Then do this again, depending upon usage, about every other month just to keep the battery performing like it should. Run the laptop with the AC adapter power only without the battery installed and then vice versa .
Many guys have abused their computer jack,or something else, therefore they cannot recharge their laptop batteries or for that matter, unable to use their laptops, and have tried to charge battery different ways.
Some body's computer charger is fuck up couse and bought a new charger and it still doesn't charge so you may get something from the video.