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bitziz is offline bitziz
2010-01-17 , 07:43
Posts: 35 | Thanked: 8 times | Joined on Jan 2010
#61
generally speaking, anywhere above 90% and the n900 shows green. also the last bit (i.e. last 10%) doesn't charge as fast the first 90% this is to ensure that the battery isn't overcharged (i forgot the official name of this method).

also, wall charger charges faster than USB as i believe the phone is able to draw higher current from it.
 
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Kajko is offline Kajko
2010-01-17 , 09:10
Posts: 199 | Thanked: 54 times | Joined on Nov 2009 @ Canada
#62
Does anybody's N900 get warm when charging through usb on a computer? Mine does a little. But not when it's charging from a wall outlet.
 
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zwer is offline zwer
2010-01-17 , 09:43
Posts: 455 | Thanked: 782 times | Joined on Nov 2009 @ Netherlands
#63
It's perfectly natural to warm a little while charging, that's how LiIon batteries behave.
 
demirole is offline demirole
2010-01-17 , 13:38
Posts: 29 | Thanked: 5 times | Joined on Nov 2009 @ Lausanne, CH
#64
I find it curious that the N900 will not charge beyond 90%, my laptop has no problems pushing both batteries all the way to 100%.

You can check the state of your battery by running
Code:
lshal -u /org/freedesktop/Hal/devices/bme
in your xterm.

After charging (till LED shows green) I get:

udi = '/org/freedesktop/Hal/devices/bme'
battery.charge_level.capacity_state = 'full' (string)
battery.charge_level.current = 8 (0x8) (int)
battery.charge_level.design = 8 (0x8) (int)
battery.charge_level.last_full = 8 (0x8) (int)
battery.charge_level.percentage = 87 (0x57) (int)
battery.charge_level.unit = 'bars' (string)
battery.is_rechargeable = true (bool)
battery.present = true (bool)
battery.rechargeable.is_charging = false (bool)
battery.rechargeable.is_discharging = true (bool)
battery.remaining_time = 18000 (0x4650) (int)
battery.remaining_time.calculate_per_time = false (bool)
battery.reporting.current = 1099 (0x44b) (int)
battery.reporting.design = 1256 (0x4e8) (int)
battery.reporting.last_full = 1120 (0x460) (int)
battery.reporting.unit = 'mAh' (string)
battery.type = 'pda' (string)
battery.voltage.current = 4041 (0xfc9) (int)
battery.voltage.design = 4200 (0x1068) (int)
battery.voltage.unit = 'mV' (string)
info.addons = {'hald-addon-bme'} (string list)
info.capabilities = {'battery'} (string list)
info.category = 'battery' (string)
info.parent = '/org/freedesktop/Hal/devices/computer' (string)
info.product = 'Battery (BME-HAL)' (string)
info.subsystem = 'unknown' (string)
info.udi = '/org/freedesktop/Hal/devices/bme' (string)
maemo.charger.connection_status = 'disconnected' (string)
maemo.charger.type = 'none' (string)
maemo.rechargeable.charging_status = 'off' (string)
, so with only 87% charge level the battery reports full! Somehow that doesn't seem right...
 
tomaszf is offline tomaszf
2010-01-17 , 14:10
Posts: 47 | Thanked: 33 times | Joined on Nov 2009 @ Czerwionka, Poland
#65
For me it seems that N900 reports battery charge level relative to original design capacity and not current capacity. Battery capacity is decreasing over time (battery used or not) and I think that even in new devices it's not 100%. Maybe that's the reason why battery level indicator shows 100% even if lshal show only 80%. Indicator is calibarated to prevent user complaints (my battery doesn't charge to 100%!).

Nevertheless, I agree that 87% is low. In my 1 year old laptop, Ubuntu reports capacity at 90% (AFAIK it was about 95% when it was new).
 
bitziz is offline bitziz
2010-01-17 , 15:13
Posts: 35 | Thanked: 8 times | Joined on Jan 2010
#66
my battery general charge to about 95-98%

and on the n900, even when it's something like 60% the battery bar still shows like 4/5th full... generally speaking it'll show completely full until something like 70%

don't trust the battery bar, it's inaccurate like on most nokia phones...
 
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janszoon is offline janszoon
2010-01-17 , 18:21
Posts: 224 | Thanked: 80 times | Joined on Nov 2009
#67
dont know if this helps or hinders the conversation but:
I too was noticing a reasonably high drain after the 1.1 update, but I had also installed a new widget (Facebook) on the desktop and recently had firefox installed too.

In standby mode overnight, I had no connectivity other than 2g mobile, so effectively no internet but maybe some apps (facebook) and IM/SIP polling for connectivety....

In anycase, before update this was not really a problem, but now i was losing 1/4 battery overnight doing nothing.

I have since removed Firefox and runtimes, Facebook from desktop and went offline from IM and SIP accounts plus set the phone to offline overnight

results, still full battery when I awoke this morn.

I will now start to 'turn on' one thing at a time to try to identify the culprit(s). Could be the IM/SIP polling ???????
__________________
My N900 Photo Gallery and Slideshow
 
MrThunderfield is offline MrThunderfield
2010-01-17 , 19:25
Posts: 31 | Thanked: 9 times | Joined on Dec 2009
#68
Originally Posted by janszoon View Post
dont know if this helps or hinders the conversation but:
I too was noticing a reasonably high drain after the 1.1 update, but I had also installed a new widget (Facebook) on the desktop and recently had firefox installed too.

In standby mode overnight, I had no connectivity other than 2g mobile, so effectively no internet but maybe some apps (facebook) and IM/SIP polling for connectivety....

In anycase, before update this was not really a problem, but now i was losing 1/4 battery overnight doing nothing.

I have since removed Firefox and runtimes, Facebook from desktop and went offline from IM and SIP accounts plus set the phone to offline overnight

results, still full battery when I awoke this morn.

I will now start to 'turn on' one thing at a time to try to identify the culprit(s). Could be the IM/SIP polling ???????
It was probably Firefox. Start with that!
 
proff is offline proff
2010-01-17 , 21:18
Posts: 1 | Thanked: 0 times | Joined on Dec 2009
#69
In my case it looks like the Calendar app that seems to be draining the battery. After rebooting up the phone a few minutes later the calendar app is running in the background. There are no widgets on the desktop and I am not using any wifi. Does anyone know how to stop this? I have not activated the calendar app at all.
Attached Images
 
 
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janszoon is offline janszoon
2010-01-17 , 21:25
Posts: 224 | Thanked: 80 times | Joined on Nov 2009
#70
Originally Posted by proff View Post
In my case it looks like the Calendar app that seems to be draining the battery. After rebooting up the phone a few minutes later the calendar app is running in the background. There are no widgets on the desktop and I am not using any wifi. Does anyone know how to stop this? I have not activated the calendar app at all.
Let itgo through it's boot/load sequence...i.e wait 5 minutes then do top commnad again...it may hav just had pritoirty at theat moment while loading in...then settles back to very little?
__________________
My N900 Photo Gallery and Slideshow
 
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