To troubleshoot iPhone battery, make sure that the battery is fully charged. For the most rapid charge, make sure that you connect the iPhone, iPad or iPod touch to a power channel using the original USB cable that came with the gadget and the connector.
Connect the gadget directly to your computer USB port (not an external keyboard) using the original USB cable that came with the gadget. Your computer must be in full operational mode and not in sleep or standby mode; else, the battery might be draining instead of charging.
If you want your phone to charge quickly while connected to a computer, detach all devices from the USB port except the keyboard and mouse, or use a powerful USB hub connected externally to the computer and connect the extra USB gadgets like the iPhone or iPod touch.
Endeavour to always turn off the Wifi when you are not using it. Settings>WIFI iOS devices will always look for available networks. This will reduce the level of your battery charge.
Endeavour to turn off the Bluetooth when you are not using it.Settings>General>Bluetooth. iOS gadgets will always look for available Bluetooth networks or gadgetsif the Bluetooth is turned on.This will reduce the level of your battery charge.
Make sure that your screen brightness is well adjusted because the brighter your screen, the more power that will be consumed. There are two ways of adjusting brightness. Settings>Brightness and Wallpaper” or in the Fast App Switching Bar by double tapping the home button and swiping from the left area to the right on the bar to show the brightness controls.
Endeavour to turn off the location services. Settings> General > Location Services. Although you will not be able to utilize maps while the settings are turned off but if you leave it on, it will consume a lot of power.
If the problem has not been solved after you must have troubleshot iPhone battery, use the manual process to save your information and then restore your device via factory settings. You can then set it up as a new gadget. Finally, adjust your settings.