Tired of your iPhone's battery draining so quickly? Here are five tips to get the most juice out of your device. 1. Turn off app refresh by going to 'background app refresh in 'general' under 'settings.' 2. Turn off location tracking. Location tracking is located under 'settings' then 'privacy.' Then turn off location tracking for all your apps. 3. Turn down brightness. 4. Change mail settings. Navigate to 'fetch new data' under 'mail, contacts, calendars.' Then turn off push and switch from 'every 15 minutes' to 'hourly.' 5. Turn on iPhone's Low Power Mode by going to 'settings' followed by 'battery.'