All About Symbian - Nokia (S60) and Sony Ericsson (UIQ) smartphones unwrapped

  #1  
Old 06-10-2011, 12:08 PM
shiftwork shiftwork is offline
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N8 battery life problems

Hi all,

New poster here, long time reader of AAS.

I have question about my N8 and the expected battery life. Recently I decided that the battery life was not good enough and after hard reset it and reinstalling Anna, it still only gave me about 8 - 10 hours use (I would have to stick it on charge as soon as I came home from work). So I took the plunge and ordered a new official BL-4D battery and installed that. It's been 4 or 5 cycles now and the battery life is still no good. This morning for instance it pretty much died at half 12 after only being on about 5.5 hours (I am using Battery Monitor). I would say I am pretty demanding on my handsets but when I read about people getting 3+ days out of their N8s, it makes me wonder if they use them at all. Here is my usage today for example:

- turned on at 7am, battery at 87% (I charged it and turned off before bed)
- listened to about 60 minutes of music through bluetooth headset
- Checked Facebook on Fmobi whilst doing this, browsed on Opera Mobile for about 40 mins on way to work
- Email is on MfE push gmail, had about six emails
- Took about 6 photos, edited and then uploaded one
- Wrote out some notes for about 30 mins
- replied to about 4 text messages
- had Nimbuzz running and replying to IM from about 10 to half 11
- Listened to 30 mins of music on bluetooth again while browsing
- Took about 15 - 20 photographs
- Browsed for about 20 mins
- By about half 12 it was dead

It should be noted that the screen brightness is about 20% and the network is almost exclusively on 2G (apart from the photo upload when I switched it back). Bluetooth was off when I wasn't using it.

I would say that maybe MFE was to blame, but I have used normal mail before and it wasn't much better - since I really want push, it was worth using MfE. Peak is 08:00 to 17:00, between those time it polls every 4 hours.

Yesterday using my N8 slightly less, it lasted until 17:30 (from 99% and being unplugged at 08:00).

It's strange because in the summer on holiday it lasted for nearly 48 hours, but that was using no data and maybe an hour or two a day of surfing using wifi. I get that my use is quite heavy and I get that using push mail and MfE will drain the battery faster, but with people quoting days of use and places like GSM Arena quoting nearly 42 hours whilst actually doing stuff (unlike my forced frugality on holiday, link here: http://blog.gsmarena.com/nokia-n8-ba...-not-the-best/), it makes me wonder what these people are doing. I heard one guy quoting over 4 days use! Is there something wrong with my handset? I'm at a loss to explain the battery loss.

  #2  
Old 07-10-2011, 08:21 PM
xcatch22x xcatch22x is offline
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I get through most of the day with mine and I use it alot for video and audio playback and browsing the internet etc. If I use it constantly for things like this then it can flatten a fully charged battery at about 4pm.

I tend to put mine on charge at night even though I use Eco Switch to automatically change it to the PSM. I also change it whenever I have mains power or a USB port available somewhere.

I went through all the battery issues back with the N95 and to be honest I was wasting my time. IF I am really worried about power for my phone I take the hypermac nano battery I have. Simple.

Wayne.

  #3  
Old 08-10-2011, 09:56 AM
monkeyandweasel monkeyandweasel is offline
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I found that Nokia Battery Monitor had a negative impact on battery life for my N8, so I un-installed it.

I also disable haptic feedback as I don't like it. Don't know how much power this saves.

I easily get through a day with heavy usage.
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  #4  
Old 11-10-2011, 08:58 AM
willem hordijk's Avatar
willem hordijk willem hordijk is offline
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Quote:
Originally Posted by shiftwork View Post
Hi all,

New poster here, long time reader of AAS.

I have question about my N8 and the expected battery life. Recently I decided that the battery life was not good enough and after hard reset it and reinstalling Anna, it still only gave me about 8 - 10 hours use (I would have to stick it on charge as soon as I came home from work). So I took the plunge and ordered a new official BL-4D battery and installed that. It's been 4 or 5 cycles now and the battery life is still no good. This morning for instance it pretty much died at half 12 after only being on about 5.5 hours (I am using Battery Monitor). I would say I am pretty demanding on my handsets but when I read about people getting 3+ days out of their N8s, it makes me wonder if they use them at all. Here is my usage today for example:

- turned on at 7am, battery at 87% (I charged it and turned off before bed)
- listened to about 60 minutes of music through bluetooth headset
- Checked Facebook on Fmobi whilst doing this, browsed on Opera Mobile for about 40 mins on way to work
- Email is on MfE push gmail, had about six emails
- Took about 6 photos, edited and then uploaded one
- Wrote out some notes for about 30 mins
- replied to about 4 text messages
- had Nimbuzz running and replying to IM from about 10 to half 11
- Listened to 30 mins of music on bluetooth again while browsing
- Took about 15 - 20 photographs
- Browsed for about 20 mins
- By about half 12 it was dead

It should be noted that the screen brightness is about 20% and the network is almost exclusively on 2G (apart from the photo upload when I switched it back). Bluetooth was off when I wasn't using it.

I would say that maybe MFE was to blame, but I have used normal mail before and it wasn't much better - since I really want push, it was worth using MfE. Peak is 08:00 to 17:00, between those time it polls every 4 hours.

Yesterday using my N8 slightly less, it lasted until 17:30 (from 99% and being unplugged at 08:00).

It's strange because in the summer on holiday it lasted for nearly 48 hours, but that was using no data and maybe an hour or two a day of surfing using wifi. I get that my use is quite heavy and I get that using push mail and MfE will drain the battery faster, but with people quoting days of use and places like GSM Arena quoting nearly 42 hours whilst actually doing stuff (unlike my forced frugality on holiday, link here: http://blog.gsmarena.com/nokia-n8-ba...-not-the-best/), it makes me wonder what these people are doing. I heard one guy quoting over 4 days use! Is there something wrong with my handset? I'm at a loss to explain the battery loss.
Try battery monitor for sure after a few days you know whitch app uses most of your battery power http://store.ovi.com/content/61776
 

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