[Desire General] Godo_PPL:
Hi. I know there are hundreds of threads on battery usage, but I felt I have a special story behind my test.

Lately I feel that my battery life has decreased, but I would like some second opinions on the case.

It's over a month now since I received froyo OTA, and I had some suspicions that my battery life went slightly down after that. I used it more to test the new features, so its hard to really know. However, the big problems occurred a couple of weeks ago.

At a party with a friend of mine, a friends friend literally pulls my Desire out of my hand and drops it into a mug of beer! :mad: As a joke!!

He had heard me taking about my Nokia 3720 earlier and decided to test it. However, ignorant as he was, he did not see that it was A DIFFERENT PHONE I was holding! :eek:

So it took 2 seconds in the mug, and the screen went black, and the phone was dead... Or not really, I took it out and dried it of with my t-shirt, turned it on, and the screen went garbeled green on me...

Decided that it was best to leave it alone, so I took out the battery, SIM and MicroSD, dried them off, put it in my pocket and continued the party.

But I have to admit it was kindof a partypooper for me... :(

Well, later that night, probably 3-4 hours later when I got home, I inserted the battery and tried to turn it on.. Screen turned on with the familiar white background, and green htc logo.. and some garbeled green at the top, argh...

I took the battery out again, left all the pieces spread out on the kitchen-counter and went to bed.

The morning after (or should I say afternoon ;) ) I looked at the phone, it seemed as it had dried out over the night. So I put in the MicroSD, SIM and battery, crossed my fingers, and turned it on. And it worked fine, like nothing had happened, phew!

But some days after, I am sure that the batterylife has decreased quite a bit, seems to not hold a normal 12-14hour day with normal use.

I did at one point post-froyo (pre-drowning) have it running for 2 full days before charging, approx. 40 hours, not very much usage though..

So, I decided to test it starting yesterday evening.

I let it drain fully (turned it on 1 time after it died, and let it die again). Charged it while turned off, and unplugged it and turned on after approx. 1 hour of full charge (green light).

Now, I have already ordered a new phone (a Streak is on its way over the North Sea as I write this :D . But I wanted to do the test just for the heck of it.

My girlfriend also has a Desire running Froyo, and I notice she uses her phone WAY MORE for gaming and stuff, and only charges a little more frequent than me.

They are both AMOLED phones, I got mine in Feb, she bought hers in March.

So, here comes the timeline:

@23:30, Turned it on after fully charged, went through all homescreens to activate all widgets. Did not run any programs.

I have no specially data intense widgets, only email and weather (3hr sync). Wifi off, and 3G (H) on always, no active background.

@08:00, On my way to work, Battery indicator (i use *#*#4636#*#* to check battery status) at 88%, recieved 1 email during the night.

Battery usage says: 49% Cell standby, 49% phone not in use, 2% android system.

I have noticed my phone struggling to keep connections while travelling even short distances(pre- and post-froyo), maybe a little worse of a problem post-froyo.

Did not happen today though! :)

I often need a reboot to get the connection back (Flightmode often works 1 time, but not 2 times. does not activate the second time I try it, just hangs...)

It's not only the data connection, there is no cell reception at all (apparantly).

Maybe I should start a thread on that also, but it is not a big issue for me (this phone is on a free use data plan, almost never use it for calls)

Dataplan here in norway costs around 50$ btw, no other extra costs for tethering and such in norway :)

@09:45, at work, recieved 2 more emails. now @84%, on EDGE network. battery usage: 53% Cell standby, 45% phone not in use, 2% android system.

not that bad actually... 10:21 "on" time, with 34 minutes active-use time.

Will try to leave the phone alone some more, and do some surfing on it around noon.

@12:55, still at work, used the phone for surfing and gReader for 25 minutes, on EDGE network. Downloaded a BOL revisited episode (podcast), I usually listen to an episode via bluetooth streaming while driving to/from work.

Now @67% and 35°C ( I noticed an temp. increase). Cell standby 47%, Not in use, 41%, android system 9%, screen 3%. uptime 13:35, waketime 1:07.

It connected to H (3g) the last 5-10 minutes or so of surfing. Turned on Wifi when I was finished, to see if I notice any battery decrease.

@14:25, did another 15-20 minutes of surfing, this time on Wifi, now @62%. also was a quick trip via google maps with gps on. battery usage states: Wifi usage 3% and google maps 2% already.. seems they use a lot of battery in a short time.

Wifi is set to turn off after 15 min of inactivety.

TBC....