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Old 11-19-2011, 09:58 AM   #1 (permalink)
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Default Short battery life 9300

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Hi

I backed up all my data, did a security wipe of everything except the media card and restored. I then deleted all the games in case something was running. I have no apps downloaded. My battery lasts 8 hours if I am lucky. The battery is brand new, although the old battery tested as "excellent". I am more than frustrated. Anyone out there to help me?
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Old 11-19-2011, 10:19 AM   #2 (permalink)
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Default Re: Short battery life 9300

It is difficult to say since battery life depends upon use. Most likely you have something running in the background, i.e. Facebook, maps, etc.

Read this from our FAQ, maybe it will help. Maximum Battery Life - BlackBerryFAQ
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Old 11-19-2011, 10:27 AM   #3 (permalink)
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Default Re: Short battery life 9300

I've always had fb on my phone and have no maps. No-one can find any apps running in the background but if you can tell me how to make sure of that I would be hugely grateful.
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Old 11-19-2011, 10:35 AM   #4 (permalink)
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Default Re: Short battery life 9300

Thanks, went into FAQ and found that I had one thing running - have no clue what it was so closed it. Will also not let my battery drain down to nothing and will see what happens tomorrow. If no improvement will take it to my service provider and they can downgrade it for me.
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Old 11-19-2011, 12:03 PM   #5 (permalink)
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Default Re: Short battery life 9300

You can downgrade to another OS yourself. See the sticky at the top of the 9300 section. Pick the OS and then follow our instructions on how to install it.
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Old 11-21-2011, 10:14 PM   #6 (permalink)
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Default Re: Short battery life 9300

I too was facing a similar issue and finally did find the cause and fix. i found out that the problem is caused by a corrupt net_rim_bb_phone.app or net_rim_bb_phone.api. inorder to find out if this is the issue go to your CPU monitor and see if the Phone keeps clocking the CPU to 100% every few seconds. You can also see the number of hours this has been happening in the day. If this is too much then my solution might help.

For some reason if you try to reload the OS from the same computer again doesnt seem to fix the issue. Also, if you try to load a later version of the same OS from the same OS doesn't work.

1. Remove the installed OS from your computer
2. Remove Desktop manager from your computer. (i suppose desktop manager has some sort of cache that creates the issue)
3. Clean up your registry
4. install desktop manager
5. install the OS 6.0 whatever version that your carrier has authorized. Though carrier authorization should not be an issue if you delete the vendor.xml file
6. Connect your phone and reinstall the OS. you can use backup and upgrade.

Your phone should be working fine and the battery last as it used to be in OS 5.0
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Old 11-22-2011, 10:44 AM   #7 (permalink)
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Default Re: Short battery life 9300

Just to thank all those on this forum whose suggestions helped me. In case anyone else is having this problem then here is what I did and it seems to have worked. My battery is now lasting up to 48 hours. First I went and closed all the games that were open. As I could not close one of the games I deleted it, and then decided to delete them all. If I want them again I can always download. I then backed up everything on the BB website, went into settings, security and did a security wipe of everything except the media card. I then restored the data. The only drawback is that one loses all ones BBM messages, but one can live with that. If anyone finds this useful I will be delighted.
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