Étant personnellement un grand usager du téléphone et du WIFI, je
trouve cet article intéressant et vous l'envoie. Les recommandations
sont valables sur d'autres modèles de téléphones. Si votre batterie
est flambant neuve, la première charge doit durer 16 heures (même si
la charge indique 100%). Le meilleur moyen d'économiser votre batterie
est de toujours le brancher au chargeur si vous êtes près d'une prise.
10 Top Blackberry Battery Saving Tips

Here's a list of Tips that may work on all Blackberry phones... Enjoy! 
1. Use Wifi when available - Turn Off Wifi when not in use
Wifi seems to be the biggest influencer of battery life on newer
devices like the Bold 9900/9930. In all of our tests and real world
outings, having Wifi on and connected to a Wifi network was amazing
for battery life. Using the Wifi network for data instead of the
carrier network makes a HUGE difference in battery life (the radios
don't have to work as hard). The Bold 9900 can get a full "work day"
of use and still sit at around 80% battery life come quitting time all
thanks to Wifi.
However when you know you won't be using Wifi if you're out for the
day or somewhere where there is no Wifi connection, you can simply
turn it off to keep it from eating away at your battery. This keeps
the device from searching for networks and draining the battery.
Long story short - if you have a Wifi network available ... use it. If
you don't ... turn it off.
To Disable Wifi
Click on the Network Settings area on your home screen
Uncheck Wi-Fi (to enable Wifi repeat the process but check the box)
2. Dim the Backlight
When you fire up a new device, more often than not the backlight
brightness is set at 70%. This is all well and good to start as you
can see the screen clearly and everything looks great. Your natural
tendency to want to see things as bright as possible may have you
cranking it up to 100%, however this can more quickly drain your
battery as the extra juice needed to keep the screen fully lit up eats
away at battery life. Turning the brightness down (even just a bit)
can help immensely to extend your battery. Personally I always drop my
screen brightness to 10% and have never had an issue. It may seem a
bit dark at first for some, but trust me, once you adjust to it you'll
never know the difference and your battery will thank you.
To change your backlight brightness:
Go to Options > Display > Screen Display
Scroll to Backlight Brightness and change to 10
3. Change Your Backlight Timeout
Having the backlight timeout set to a low value keeps your screen from
staying on unnecessarily when you're done doing whatever you're doing.
In most cases there is no need to have the screen stay on for 2
minutes or even 1 minute after you're done using the device. I think
that sticking to 20 or even leavng it at the default 30 seconds works
just fine, though if you're really in need of more precious seconds of
battery life you can put it all the way down to a 10 second timeout.
Having a short timeout on your backlight keeps the screen from staying
on too long and eating up your battery.
To adjust the Backlight Timeout:
Go to Options > Display > Screen Display
Scroll to Backlight Timeout and change to 20 Sec.
4. Turn Off Bluetooth When Not In Use
Bluetooth is a great feature of BlackBerry smartphones. It lets you
connect with devices such as headsets, computers, speakers and much
more. However when not in use, having Bluetooth active can slowly take
away from your overall battery life. When you're not using Bluetooth
it's always a good idea to just turn it off. Granted you won't be able
to automatically connect to devices without turning it on again, but
it's only a few clicks away so it's never too much of a hassle to fire
it up again.
To Disable Bluetooth:
Click on the Network Settings area on your home screen
Uncheck Bluetooth (to enable Bluetooth repeat the steps but check the box)
As for Bluetooth while talking on the phone, the Crack team debates
this one back and forth. Arguably you should get better BlackBerry
life if you're on a call using a Bluetooth headset or Bluetooth
Speakerphone (since you're now saving your BlackBerry from having to
use it's microphone and speakers). Over the years we've found this can
vary a bit depending, so it's something you'll want to test out with
whatever Bluetooth Accessories you use. But for sure when you're not
using Bluetooth, turn it off.
5. Change Network Settings In Poor Coverage
This one not many people think of but it can also be a big help on the
battery. If you happen to find yourself in an area with poor network
coverage for your carrier, you can change up your settings or even
turn off data completely and save yourself some precious battery bars.
Sometimes when you find yourself in poor coverage it could be due to a
clogged network (as happens often to the Crack Team at tradeshows or
for those who are on AT&T in big cities like New York or San
Francisco). If this is the case, you can access your Network Settings
and change your device from 3G/H+ down to 2G. This drops your "3G
data" and gets you on the slower 2G network, but also clears things up
as your device won't constantly struggle to find a data connection. It
may sound a bit odd, but in times of need it definitely does the
trick. Depending on your situation, this could literally add a day,
never mind hours, to your battery life.
Change your Network Settings to 2G:
Click on the Network Settings area on your home screen
Choose Networks and Connections > Mobile Network
Choose the dropdown box next to Network Mode and select 2G
Alternatively, you can totally disable data on your device by simply
turning data services off in this same menu. Keep in mind this will
kill all data to your device, so apps, emails, BBM and the like won't
be received.
6. Use the Auto On/Off feature or Bedside Mode
This is a simple yet not well known feature of BlackBerry Smartphones.
Built into the OS is the ability to automatically turn the device on
and off at given times. This is extremely useful for saving battery
life as well as turning the device off when you're sleeping, in daily
meetings etc. In BlackBerry 7 you can set the Auto On/Off for both
weekdays and weekends and if you learn to use it correctly it can help
out tremendously with your battery life. Keep in mind that this will
totally shut down the device so you won't receive emails, phone calls
or SMS messages as it's essentially the same as powering off the
device. The good news is that if you have an alarm set before your
turn on time the device will power on to sound the alarm.
To use Auto On/Off
Select Options > Device > Auto On/Off
Check Enabled for Weekday, Weekend or both
Choose the time you'd like the device to turn on and the time to turn
off (ie. 10pm to 7am)
Also lumped in with the Auto On/Off is Bedside Mode. This nifty
feature is accessed through Clock > Options and lets you automatically
turn off the device LED and Radio as well as dim the screen when
Bedside Mode is active. This feature lets the device remain on while
not taking up any extra battery life with the device radio or LED
active. The clock will be displayed and the screem dimmed, so if you
don't want to worry about missing phone calls or SMS messages, this is
definitely a better way to go. You can also power off the display
fully in Bedside mode, further saving battery life (just hit the
screen lock button once in Bedside mode). Read more on using Bedside
Mode here.
7. Lock Your Device and/or use a BlackBerry Case w/ sleeper magnet
While locking the device is something you should do anyway (better
security when you use a password) it can also help save battery life.
When your device is in your pocket or purse and it gets banged around,
sometimes the screen will activate when a key is pressed. To prevent
this you can either use the lock button on your device or set a device
password with a timeout. This is a good practice to keep the device
safe while preventing the screen from turning on when you don't want
it to. You can also use one of the many BlackBerry holsters that
contains a sleeper magnet - automatically putting your device to sleep
when you put it in the holster.
8. Exit Unused Apps
Simply closing unused apps can go a long way in helping battery life.
In particular apps that constantly pull your GPS location or perfom
other tasks really hinder your battery life when not in use. To easily
close these apps you can use the built-in App Switcher to see what's
running on your device, then close anything you aren't using.
To close unused apps:
Press and hold the Menu button to open the app switcher
Highlight and select the app you want to close
When in the app, press the Menu button again then exit (shutdown,
logout) the app
9. Change App Refresh Settings
Apps like Twitter, Facebook and others that run in the background on
your device can eat up precious battery life in no time. These apps
constantly refresh at set intervals and slowly chip away at battery
life you could be saving. For any app that has a background refresh,
you'll want to turn the refresh rate up or even off completely.
Twitter for example can be set to refresh at anywhere from 5 minutes
to 1 hour. Having the app refresh every five minutes isn't the best
idea if you're looking to conserve battery power, so changing it to 1
hour or even turning it off and manually refreshing as needed goes a
long way. The same is the case for Facebook, Social Feeds and other
apps that refresh in the background.
10. Charge Your Device (and buy a spare battery!)
Last but not least is the "no brainer" of the bunch. Charge your
device whenever you have the chance. Be it at home or in your office
with a standard wall charger or BlackBerry charging pod, in your car
with a car charger or wherever you happen to be. Charging in your down
time is obviously the best way to keep your battery up and running all
day long.
If you happen to be on the go daily and fear your device won't make it
through the day, why not just carry a spare battery? This is the best
way to ensure you're up and running when you need to be and will leave
you worry free knowing you have an extra battery ready to roll when
you hit the red.
--
SIBOMANA Jean Bosco
Google+: https://plus.google.com/110493390983174363421/posts
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http://www.youtube.com/user/sibomanaxyz999
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Posted by: Jean Bosco Sibomana <sibomanaxyz999@gmail.com>
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