battery usage follow up
 

i checked my battery usage periodically today in order to understand a bit wheres is the drainage concentrated... i had edge enabled, skype disabled and the display lit to the 3rd level... i must say the battery is improving compared to the first 4 days of use... here's the log:


Right off the charger with the green light:
~ $ lshal | grep percen;date
battery.charge_level.percentage = 92 (0x5c) (int)
Fri Dec 25 07:19:25 EET 2009

Updated a couple of contacts, tried syncing mfe w google in vain sent/received 5 sms:
$ lshal | grep percen;date
battery.charge_level.percentage = 84 (0x54) (int)
Fri Dec 25 08:24:21 EET 2009

2 phone calls + 3 sms;
~ $ lshal | grep percen;date
battery.charge_level.percentage = 77 (0x4d) (int)
Fri Dec 25 11:20:30 EET 2009

many phone calls + smsing + emails checked and sent
~ $ lshal | grep percen;date
battery.charge_level.percentage = 71 (0x47) (int)
Fri Dec 25 13:03:57 EET 2009

idle since last check
~ $ lshal | grep percen;date
battery.charge_level.percentage = 61 (0x3d) (int)
Fri Dec 25 16:10:23 EET 2009
~ $

20 min of wifi and a couple of calls:
~ $ lshal | grep percen;date
battery.charge_level.percentage = 54 (0x36) (int)
Fri Dec 25 17:37:43 EET 2009

basic usage (calls, smsing checking mail)
~ $ lshal | grep percen;date
battery.charge_level.percentage = 26 (0x1a) (int)
Fri Dec 25 22:33:01 EET 2009

1 long call (15 min)
~ $ lshal | grep percen;date
battery.charge_level.percentage = 25 (0x19) (int)
Sat Dec 26 00:17:24 EET 2009

Re: battery usage follow up
 

it doesnt seem that it correlates to usage, as silly as it seems..

Re: battery usage follow up
 

A bit of a side-topic, but did anyone compare the lshal batery percentge with the battery indicator on the status bar?
Right now my lshal says 72% but the status bar indicator show the battery as basically full. From the status bar alone I would estimate the battery at 95%.
I noticed similar 'differences' at other battery levels.

Does the status bar not relate to the lshal percentage, or maybe not in al linear way?

Re: battery usage follow up
 

I think the status bar uses battery.charge_level.current, which goes from 0 through 8. It seems to correspond to percentage in an almost, but notstrictly, linear way.

Re: battery usage follow up
 

if we can put it in a very "simple" or lets say "shallow" way, i find the battery indicator to miss the correct percentage by around 15% .... what i mean by it is that when it shows full on the green bar, your battery is actually anywhere between 85 and 97% (ive never seen it reach 100) and so on... which can be quite misleading...

Re: battery usage follow up
 

What's "wifi use"? Just having the wifi on consumes almost no power at all, as long as the access point isn't broken...

Re: battery usage follow up
 

That's not really my experience, but i've not been too careful to separate being connected from any network activity.

Re: battery usage follow up
 

bug raised ==> bug#7636

pls vote/comment.

this is for the battery level not reaching 100% even when fully charged ( green indicator flashing )