Best practice: Improve your mobile phone's battery life

One of the most common questions we get here at Recombu is "How can I improve
my mobile phone's battery life?" There's not a lot we can do about the batteries
themselves but we can offer you some advice on how to get the most out of your
phone's battery.
Don't be flashy
Perhaps a no-brainer but the higher the brightness on your phone's display settings
the more it'll drain the battery. Some phones automatically adjust the screen's
brightness depending on ambient light but even then we recommend going into
settings and setting your phone's brightness levels as low as possible.
If you own a phone with an AMOLED display then it's also a good idea to have a dark or
predominantly black background or theme for your phone. A report by 4D Systems
shows that a device with an AMOLED screen can save battery power by opting for a
black background.
Another effective screen-related tip is to adjust the screen time-out. Set your
screen to time-out at 30 seconds or less.
Bad vibes
Turn your vibrate setting off if your running low on power. Yes, we know it's useful
to have vibrate on but if you can hear your phone ring and don't need it to vibrate then
you'll save a lot of power by switching vibrate off.
Managed multitasking
If you're running a lot of apps simultaneously then you're going to be eating up a lot
of juice. Make sure you keep an eye on how many apps you're running using a
pre-installed app manager or a third party task manager.
There is a wide range of task managers and app killers available for a number of
smartphone platforms. Here is a selection of the some of the task managers available:
Android: TasKiller Full by Thibaut Nicholas (€0.70/£0.60)
BlackBerry: Task Manager and Process Viewer by Ajani InfoTech ($2.99/£2.08)
Symbian (S60 3rd edition and above): Handy Taskman by Epocware
($14.95/£10.38)
Email updates
Mobile email is fantastic but it can also eat away at your phone's battery. If you've
got push email activated or your email client is set to check for emails very often, then
your battery is going to suffer. Try setting your mobile's email client up to check for
emails every hour, or longer if possible, and you'll find that your phone lasts even
longer.

Danger signals
Your phone is constantly trying to locate the strongest possible network connection.
Leaving your phone in an area of the house or office which has low signal will place
unnecessary strain on the battery. Leave it instead in that one corner of the house
where you know you'll be able to get a bit of signal. If you live or work in an area which
has a weak 3G signal it's a good idea to switch your phone to 'use 2G networks only', if
the option is available to you in your phone's settings.
Watch the wireless
If you don't need them, turn them off. Unless a friend wants to send you something
or you want to pair with another device then we're not sure why you'd want to keep
Bluetooth switched on. The same applies to 3G, GPS and Wi-Fi.
Charge athletically
It's often said that it's a good idea to let your phone's battery run down before
giving it a full recharge. This isn't always true. While it is true of the rechargeable
nickel-cadmium-based AA batteries you used in your GameBoy, the same isn't true for
modern mobiles, which run on lithium-based batteries. It's best to charge your mobile
at regular intervals. Charging your phone in a series of short, regular bursts - before
you go to bed, at lunch - is also a good idea.
Keep it cool
Phones get pretty warm when they're being charged up which isn't great for the
battery. So if you leave your phone charging for long periods of time then it can reduce
the battery's performance over long periods of time. BatteryUniversity says that a
battery regularly kept at temperatures under 25 degrees Celsius will retain 80% of its
maximum charge level after a year of use. Keep your phone somewhere cool and out of
the sun's light especially in the summer months.
Busy battery
Current Lithium batteries have a lifespan of around 2-3 years. A modern mobile's
battery will generally last you the lifetime of your contract. If you're not interested in
upgrading after your contract is up, getting a fresh battery is a good idea.