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It's a well-known fact that smartphone battery life isn't great. They often last barely a day. When I bought my first iPhone 5, I was also surprised that it wouldn't even last a whole day. I thought to myself, "There's a bug somewhere." In this article, I'd like to share with you the experiences I've gathered in the hunt for battery life.

My normal routine

On the web you will find many articles about what and how "eats" the battery and that it is best to turn it all off. But if you turn everything off, the phone you bought just for that will be nothing but a pretty paperweight. I will share my phone setup with you. I get the most out of my iPhone and at the same time it lasted all day. I've settled on the following regimen that works for me and I'm happy with it:

  • I have my phone on the charger overnight (among other things, also because of the app Sleep Cycle)
  • I have location services always on
  • I have Wi-Fi always on
  • my bluetooth is permanently off
  • I have 3G always on and I normally work in mobile data mode
  • on my phone I read books and listen to music, read e-mails, surf the Internet, normally call and write messages, sometimes I even play a game - I would simply say that I use it somewhat normally (a couple of hours a day at a time for sure)
  • sometimes I turn on the navigation for a moment, sometimes I turn on the Wi-Fi hotspot for a moment - but only for the necessary time.

When I operate like this, I still have about 30-40% battery capacity on my iPhone 5 at midnight, when I usually go to bed. During the day, I can function quite normally and I don't have to sneak along the walls to find a free outlet.

The biggest battery guzzlers

Display

I have auto brightness set and it works "normally". I don't have to download it to the minimum to save battery. To be sure, check the brightness level and its automatic correction in v Settings > Brightness and wallpaper.

Brightness and wallpaper settings in iPhone 5.

Navigation and location services

It is worth stopping here for a while. Location services are a very useful thing - for example, when you want to find your iPhone or remotely block or erase it. It's handy to quickly know where I am when I turn on maps. It is also suitable for other applications. So I have them permanently on. But it needs a little tuning to make the battery last:

Go to Settings > Privacy > Location Services. Allow the use of location services only for those applications where you really need it. Disable the rest.

Setting up location services.

IMPORTANT! Scroll all the way down (to the bottom of the hints) where the link is System services. Here you can find a list of services that variously turn on location services without you needing it. Try turning off everything you don't need. I have it set up like this:

Setting up system location services.

What do each service do? I couldn't find any official explanation anywhere, so please take this as my guess, partly collected from various discussion forums:

Time zone – used for automatic setting of the time zone according to the location of the phone. I have it permanently off.

Diagnostics and utilization - serves to collect data about the use of your phone - supplemented with location and time. If you turn this off, you will only prevent adding the location, the sending of data itself must be turned off in the menu Settings > General > Information > Diagnostics and usage > Do not send. I have it permanently off.

Genius for Applications – serves to target the offer by location. I have it permanently off.

Mobile network search – supposedly serves to limit the frequencies that are scanned when searching for a network by location, but I have not found a reason to use it in the Czech Republic. I have it permanently off.

Compass calibration – used for regular compass calibration – it appears on the forums that it doesn't happen often and consumes little data, but I still have it turned off.

Location-based iAds – who wants location-based advertising? I have it permanently off.

Traffic - supposedly this is data for Apple Maps to display traffic on the roads - i.e. to collect it. I left it on as the only one.

The navigation itself "eats" quite a lot of battery, so I recommend using it, for example, with a car adapter. Google's navigation is a bit more gentle in this regard, as it turns off the display at least for longer sections.

Wi-Fi

As I already wrote, my Wi-Fi is always on - and it automatically connects to the network both at home and at work.

A mobile Wi-Fi hotspot is a relatively large consumer, so it is advisable to use it only temporarily or to have the phone connected to the power supply.

Data services and PUSH notifications

I have data services (3G) permanently on, but I have limited the frequency of checking emails.

In the menu Settings > Mail, contacts, calendars > Data delivery – although I have Push set, but I have set the frequency in an hour. In my case, Push only applies to iCloud synchronization, delivery frequency to all other accounts (mainly Google services).

Data retrieval settings.

This chapter also includes notifications and various "badges" on applications. It is therefore appropriate in the menu Settings > Notifications edit the list of apps that can display any alerts or notifications. If you have enabled badges and notifications, the application has to constantly check if there is anything new to notify, and that of course costs some energy. Think about what you really don't need to know about everything that goes on in that app, and turn everything off.

Notification settings.

Invalid / non-existent accounts you have in sync can also take care of draining your battery. If your phone repeatedly tries to connect, it uses energy unnecessarily. I therefore recommend double-checking that all accounts are correctly set up and synchronized.

There have been various reported issues with the Exchange connector in previous versions of iOS - I don't use it though, so I can't speak from my own experience, but the advice to remove the Exchange account and add it back has repeatedly come up in the discussions.

Crab

In the Czech Republic, Siri is not useful yet, so why waste energy on something that is not necessary. IN Settings > General > Siri and turn off.

Bluetooth

Bluetooth and the services that work through it also consume energy. If you are not using it, I recommend turning off v Settings > Bluetooth.

AirPlay

Streaming music or video via AirPlay defacto permanently uses Wi-Fi and therefore does not exactly help the battery. Therefore, if you plan to make more use of AirPlay, it is advisable to connect your phone to the power supply or at least have a charger handy.

iOS

Last but not least, it is advisable to check which version of the operating system you are using. Some of them were more prone to energy consumption than others. E.g. version 6.1.3 was a complete failure in this regard.

If your phone still can't last a full day without charging, it's time to find out where the problem is. This can be helped by some specialized applications, such as System Status – but that is for further research.

How are you doing with battery life? Which services do you have turned off and which ones are permanently on? Share your experiences with us and our readers in the comments.

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