How can I prolong my battery life on my smartphone?

Open the Power saving mode,The brightness of the screen may affect the standby time of battery power. In the display setting, you can adjust the brightness to “auto” mode in order to reduce consumption. Leaving applications running in the background will increase the consumption of battery power, close the application that you’re no longer using. Try not to leave video or music playing in the background if necessary. If the battery drains fast even though there is no feature running, the battery may be wearing out and you need to seek a replacement for it.