Lenovo Battery BL 194 - A520/K2/A288T/A298T/A370/A530/A560/A660/A668T/A690/A780/A790K/S760

The
battery life of a handset can vary greatly depending on how you use
your device and your battery charging habits. If your device is running
out of battery quickly， or takes a long time to start up (or even does
not start up at all)， then you may need a replacement battery.