... business applications with extended stable power.6.You can experience up to two days or more of uninterrupted phone power, depending ... key again to turn off the charge.2.For the back-up power charging.LED flashes corresponding to the positions, the percentage ... Home Button, Rear Camera, battery, SIM Card Tray, Vibrator, Buttons, WiFi Antenna, Earpiece Speaker, SIM Card Adapters and so on. Warranty : 1 ...