one
First, tap the Settings icon from your desktop to access the Settings function.
< br >
two
Once in the Settings screen, tap the battery option inside.
< br >
three
On the battery interface, go down to find the two engine flash charge a few words, at this time, it is found that the button on the right is gray.
< br >
four
Turn the gray slider to the right, so that the flash charge mode is turned on, and when recharging, it can greatly save time