1, check the current battery power of notebook batteries
First look at the battery at this time the amount of electricity, if the electricity between 90%-100%, then the charge is not in the electricity may be normal. Because the laptop to protect the battery life, the number of charges will not be so frequent, only the battery charge is less than 90% (some is 95%) when the charging.
2, check whether the charger is the original
Sometimes, for example, Dell's 1450 notebooks pop up when prompted for "not charging", "the type of AC power adapter cannot be determined." Your system will slow down and the battery will not charge. Please connect Dell 90W or higher Power AC adapters for optimal system performance. , this time should check whether the charger is the original charger.
3, check the power of the charger is qualified
Some laptops require the use of 90W power adapter, but the charger power is too large or too small, can not be used normally, then how can the notebook judge the power of the adapter? Notebook Charger General "round needle" type adapter, the middle of the needle to play a power recognition function, if the needle is broken or the inside of the virtual welding off line, That will not be able to determine the power of the laptop computer can not be charged.
4, whether the charging function is disabled
Some laptops have a "no charge" feature in the battery option, which gives the laptop a direct power supply without charging the battery, in which case it is not charged. If your laptop is not charging, then it is recommended that you check the battery options to see if you have disabled the charging function for your laptop.