Use a Music Service’s Offline Mode
Streaming music uses more of the iPhone battery reserves than playing locally stored audio files — either the ones you downloaded or synced. If the streaming music service supports an offline mode (Apple Music and Spotify are two that do), use offline mode to download frequently played songs. If you stream songs multiple times, download those songs to your iPhone providing storage space isn’t an issue. You can then listen even when there’s no internet connection.
See Which Apps Are Battery Drainers
On iPhones running iOS 8 or higher, there’s a battery usage option in the Settings menu that lists the apps (by percentage) that use the most battery power. Streaming apps, in particular, can drain a battery quickly so close these apps if you’re not listening to music. To see which apps use the most battery power:
Use Earbuds or Headphones Instead of Speakers
More power is required to listen to music over the iPhone internal speaker or a wireless setup than to listen with the wired earbuds that come with the iPhone. Using earbuds reduces the amount of power needed.
Limit Background App Refresh
The background app refresh feature keeps apps up to date all the time, so they are ready to go when you are. Turn off background refresh for most apps or limit the feature to Wi-Fi connections only to save battery power.
Turn Your Screen Brightness Down
Screen brightness is a huge power drain. Reducing the screen brightness is a quick way to save battery life.
Disable Bluetooth
Unless you are currently streaming music to a set of Bluetooth speakers, it’s a good idea to disable this service. Bluetooth unnecessarily drains the battery if you’re not using it for anything. Here’s how:
Disable Wi-Fi
When listening to locally stored music, you don’t need Wi-Fi unless you want to stream to wireless speakers. If you don’t need the internet (via a router, for example), temporarily disable this battery drainer.
Turn off AirDrop
AirDrop for sharing files is enabled by default. Although convenient, it is a security risk and uses battery power while running in the background. Turn it off if you aren’t using it. To turn off AirDrop:
Download Music Videos Rather Than Streaming
Watching videos from sites such as YouTube usually involves streaming. If you’re able to, download videos instead of streaming them in order to save power.
Disable the Music Equalizer
The EQ feature is great if you use it, but it is CPU intensive. To turn it off:
Disable iCloud
Apple iCloud seamlessly works with all your devices. Disable this service for apps that don’t need to be synced often to save power. To disable iCloud:
