can only charge 99% solutions
First, do not care, the power of the display is based on the detection of the battery out of the current or voltage corresponding to a certain indicator, may be your device's battery than Apple's standard slightly deviation a little, so full display 99%, any product is a certain floating standard, will not affect your use!
Second, there may be a system problem, upgrade to the latest system to try; How many do not have a mobile phone hardware problem, do not worry about this, but you can call Apple 4006 272 273 booking to check your device for hardware problems, you have 90 days of free technical Support Online services.
Fully charged and not in the solution
IPhone5S the first to check whether the charger charge, the use of computer USB is not able to charge. If still not check room temperature is not too low, Apple for iphone5s battery set the temperature is too low protection. General Lithium-ion batteries will be set to low temperature protection, because the low temperature charge, the lithium metal in the battery will produce deposition, resulting in the battery internal short-circuit. Especially now in the winter is not full of electricity should be placed in the iphone5s of a hot water bag, such as temperature rise will be able to recharge natural
Analyze some of the charging techniques
One, the first charge, the hint is full of good, do not have to charge for a long time;
Second, as far as possible to use less than 20% charge, reduce the number of charges; as full as possible, power off
Third, after less than 20% start charging, filled to full, that is, full cycle charge, reduce the number of cycles is to try to lower than 20% to start charging;
Four, the monthly at least a periodic charge, that is, mobile phone power to automatically shut down, and then recharge to full good.