Can give consideration to and prevent the customer end from inserting the electricity and passing the long state and already to design reaching the protection of the battery to charge on the little electric current of this stage of end. In addition, the lithium battery of the note type computer has one's own charging and protecting the return circuit promptly in the design. So not the battery is charged problematically, it is not that the computer charges the battery problematically either. But because 95%~99% is charged by the trace, will not touch off and charge the indicator lamp. Please settle down to use.