how  to refresh apps on a tablet
How to See Which Apps Are Draining Your Battery on an iPhone or iPad. Since iOS 7, apps have been able to automatically check for new data, even when youâre not using them. âBackground app refreshâ means apps can use battery power in the background. To change this, open the Settings screen, tap General, and tap Background App Refresh. Disable this feature for apps you donât want to refresh automatically, or disable background app refresh system-wide.