We receive many questions went on "Battery Not charging", it can not be generalized in determining whether a problem, because each laptop has its own characteristic, depending on how people use, quality components, and the target market from the factory if the medium / low.
There are a few we had we found our problem:
To model the existing needle adapter in the middle, some compaq cq this series is pretty significant problem, more often the problems arise for the adapter type TSB. It turned out that these brands do data checking through these pins. That is to reduce the use of compatible or non original adapter.
Another problem is the battery has been doing "self protection", it is sometimes because the "overheated" / hot, "current spike" / occur suddenly surge, "voltage spikes" / occur an abrupt jump in voltage.
To avoid these problems:
1. Do not get overheated for laptop battery, keep it away from the hot room. For certain industrial standard laptop this is not a problem. Could be an expensive laptop.
2. Get used to connect the power adapter first, after a while new to laptops, to avoid the "spike" it.
