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Desire battery consumption

I had big battery problems but found this when i googled 'htc desire battery trick', this is basically what it tells you to do. 1) run your battery right down as low as you can before it goes completely flat then do a hard reboot ie a battery pull. 2) turn your phone on and put it on charge, now charge it for at least 8 hours (I actually charged mine for about 9.5 hours). 3)after this long charge, unplug the phone and turn it off, now put it back on charge for another hour (leaving the phone off) 4) after the hour charge unplug your phone and turn it on for 2 minutes then turn it off again and put it back on charge for another hour (again leaving the phone off) 5) after this your phone is now ready to use and should have double the battery life!! Sounds ridiculous I know but i tried it overnight and finished the cycle at 10:00 yesterday morning it is now 17:00 the following day and the battery has just this minute gone into the orange zone, and that is after downloading 2 apps playing games going on facebook sending numerous texts and making calls as well as recieving many emails, so for some really strange reason this process does seem to work - give it a go and see if it works!!!
 
The biggest factors in improving my battery life DRASTICALLY were:

1. reducing the screen brightness to 2% via the my settings app

2. Using the spare parts app to detect which rogue apps were preventing the desire from going into sleep mode, and adjusting/deleting these rogue apps as necessary
 
I recently uninstalled four or five apps that I wasn't using very often and since doing so I've noticed my battery is lasting longer. The strange this is, none of them were partial wake culprits.
 
i did the calibration thing and it worked for me in that it put my battery level up to 4182– when 100% full----- but then it slipped back down to 4114 when 100% a couple of days after- why could this be?
 
Yes, 3G is the most power hungry of connection types. Infact overall power consumption wise it is second only to the display I think
 
I haven't received any updates (for the phone or for apps) and all of a sudden, the battery life has become really good. Normally I get off work and I have 60%, but now I have 75% or so, and today it has been on for 10 hours and there is still 80% battery left!

I have pretty restrictive settings so I was wondering why the battery life wasn't like this to begin with! I have twitter set to pull every hour, weather every 2 hours, mail every 15 minutes, and screen brightness set to about 40%.
 
Getting a full 48hrs out of my battery now using Baadnwz 1.8c DHD rom...

With 3G/Wi-Fi on and twitter/Facebook/Pushmail updates enabled

:-)
 
Ah but how much screen on time? Unfortunately other than changing the brightness, theres not a lot that can be done about that
 
SUroot said:
Ah but how much screen on time? Unfortunately other than changing the brightness, theres not a lot that can be done about that
Click to expand...

Quite a bit...not many calls over the weekend though.

snap20110131_010659.png
 
I've noticed that even when the battery is showing fully charged I.E original battery icon fully green and green led on, also battery monitor showing 100% as soon as I unplug it from the charger and begin to use it the battery immediately drops to around 83% . I use the browser on wifi and 3g and have to charge the phone every day.
 
Uridium said:
Quite a bit...not many calls over the weekend though.

snap20110131_010659.png
Click to expand...

Wow, your cell standby is only 18%, mine is at 38%!
I'm using stock 2.2 on t-mobile (time on 4h 11m, time without a signal 0%), made 0 calls or texts so far today.

The rest is: idle 31%, android sys 10%, display 10%, wifi 8%, media 3%.

Anyone know why this is so high and how i can decrease it, i can easily get a day out of my phone and sometimes nearly 2, but if i can decrease this i should be able to get 2 easily.
 
AceMathias said:
Wow, your cell standby is only 18%, mine is at 38%!
I'm using stock 2.2 on t-mobile (time on 4h 11m, time without a signal 0%), made 0 calls or texts so far today.

The rest is: idle 31%, android sys 10%, display 10%, wifi 8%, media 3%.

Anyone know why this is so high and how i can decrease it, i can easily get a day out of my phone and sometimes nearly 2, but if i can decrease this i should be able to get 2 easily.
Click to expand...


Thing to notice is that all the components add up to 100% of battery use.

Uridium is on a custom rom with a custom kernel so display is probably highest.

Reason for this is any other component that uses CPU has been optimised for better battery life, but diplay is a drain on its own and doesn't use CPU at all.

Also, he may well have a newer, more efficient radio than you because he is rooted, he can change these himself).

Furthermore, Battery used depends on signal strength. The lower the signal, the more power is used to maintain a signal / connection.


My Cell standby is 16% - 6 hours, 3 Mins. But this is because my display is 53% battery at 30 mins

Phone on 6 Hours 3 mins (82% battery left).

Phone Idle 14%, Phandroid 7%, akmd 4%, XDA 3%, Gmail 3%, Android OS 3%

For somereason that adds up to more than 100% though.
 
I've noticed that my HTC Desire uses a lot of power in standby, around 300mA...
Normal for me was around 6-7mA
I have Leedroid 2.3d rom and countts kernel.

I've tried flashing different radios , roms (aosp and sense based, even gingerbread) but power drain stays the same at standby and phone is quite hot.i get around 3h of battery life just in standby...

I've also disabled automatic time set, 3g, deleted all power hungrey apps, no wifi bt or whatsoever.I've also noticed in spare parts that Android System uses the most CPU.
Its just like CPU wont go to somekind of sleep, it just seems to run at full speed all the time.

Any suggestions what should i do ?
Is it also possible that this is somekind of hardware damage, since when this happen i didnt do anything special with my phone for days (no new apps, just browsing and calls)
 
I've also noticed while putting phone to airplane mode, that in this case "Phone Idle"
uses the most battery.But battery drain is still 300+mA.Which is wierd since this suppost to use least power.
It looks like my Desires CPU doesnt actually enter sleep mode at all....
 
Ive read somewhere that reseting battery stats in recovery helped some people with similar problem.
Ill try this if it help (i have to get my battery charged first ;) )
 
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