The first 80% of the Xiaomi mobile phone battery belongs to the speed, relatively fast, 80% to 100%(the value is only estimated) belongs to the saturation, relatively slow. Computer connected charging friends must pay attention to the computer's U port current is small, so it can not meet the standard of the charger, do not use it as a charger, charging equipment damage damp work will certainly be affected. If there is no charge, the charger may be damaged, or the battery information may be wrong, please back up important information, and then clear the data into the latest system