yashsingh1/xdaforums huggingface dataset:
[HD2 General] Highl1:
I applied the power management cab, and got great results. I took off the phone from the charger at 9pm on Thursday. On Friday, around 10am I switched on the WiFi. Now its Saturday, 1 AM almost, battery is on 20%, WiFi was on for the whole time, and I had around 20 minutes of calls, 35 sms, and got around 50 e-mails on Exchange push account and GMail account that I setup to download mails every ten minutes. FB and Weather sync is also, along with Push email always on
[HD2 General] padmanaban:
Some times due to weak signal strength, the mobile phones takes more battery power to get the data while browsing. Else may be some other problems with your device.
[HD2 General] anx7501:
For those in the USA who have power monitor software please check my post here

http://xdaforums.com/showthread.php?t=591098

From this single change, useful life during the day is about 1.5 times better. Of course this doen't apply to UK users, you want HSPDA/3G, but here we can only use EDGE (so I'm just forcing the phone to use all it can use anyway). Along the same lines, I have noticed that WIFI uses less power than EDGE over GSM, especially when sending/receiving large files with weak signal - the exact opposite of my Athena. Do others notice this too?

I am curious as to the power difference with / without the aforementioned change.
[HD2 General] erosennin:
In 7 hrs of flight mode I loose around 7% with very minimal use. Either you have some software that's causing this depletion or else the battery is defective. Did you try a soft reset?
[HD2 General] elburna:
@Jabbawalkee

Sorry for not postin man... had lots of stress at the weekend and now its again around 1am. Will try to check your logs tomorrow.
[HD2 General] jabbawalkee:
No problem man...take your time. I took one member's suggestion of switching phone bands from Auto to GSM (since I'm in the US). I had done that before but didn't leave it, so I was unable to figure out if it affected batt life. It seems to help a little bit.

Anyways, get back to me when you have some free time. I appreciate it thanks :D
[HD2 General] ATomCZ:
I tested it again next night, I turned off all application and battery lost only 6% during night. Maybe same application prevent to go to sleep. But problem is that I don't recognize when device is sleeping, when is only display dimmed or when GPS module is on. Use notification LED for this would be great.
[HD2 General] erosennin:
Since I installed Touch X Taskmanager, which basically closes all applications when you hit the X, I never experienced any shocking battery depletions again.

In 60 hrs the battery was down to 35% with many phone calls, txt messages, taking photos, browsing and listening to music. Oh and auto update is always on, that's the way this phone is meant to be.

I suggest to all of you out there to install that application, it's bloody well worth it.
[HD2 General] jabbawalkee:
I have that as well and it definitely comes in handy. But, here in the US, I'm still not getting anything near 50/60+ hours of battery life haha...nowhere near that! I guess you're just lucky
[HD2 General] ATomCZ:
I know it. But HD2 has huge RAM and isn't necessary to close all application immediately. I prefer to have it running to faster reuse it. But some information like "Which application prevent to sleep" will be usefull.
[HD2 General] meegulthwarp:
I'd like to share my experience with my HD2. Firstly, when I received the phone I let the battery drain to 0% and then left it to charge overnight (as the HTC Care manual states you should do).

I've owned the phone for almost two weeks now and so far my battery has lasted two days before needing a recharge. Below I've outlined my general phone usage per 48 hours:

Phone calls: 40mins

SMS: 30

HSDPA/3G browsing: 4 hours (at work)

Wifi browsing: 5 hours (Wifi only on at home and not using 11n)

Gaming: 1 hour (I'm using Experiment 13, Electopia and Xtrakt)

Music: 1 hour (using headphones)

Camera: 6 pictures (about half in daylight and half in dark using the LEDs)

3 mail accounts syncing hourly (no Exchange push)

Facebook account syncing hourly

2 hours of using Total Commander looking through the registry, general exploration of the phone and installing various programs

Other things to note:

I have Dutty's Taskmanager installed and generally close most programs when not using them. I have not modified any settings in regards to battery life, everything is stock and Autobacklight is on.

At home I have a strong HSDPA signal and at work it flips between a weak HSDPA and strong 3G signal. HTC Location Service is always on but I do not use the HD2 as a satnav.

Yesterday morning my HD2 was at 100% now at 20:20 it is at 26%. I may try some of the tweaks mentioned here to see if I can get a third day out of this beast.

Also worth noting is that HTC are releasing an Extended Battery for the HD2 Price and Availability TBC.
[HD2 General] vangrieg:
If that is the effect you get than it's a faulty application that caused the battery drain. There's no need to exit [well-written] applications that don't do something in background all the time. An IM client may need to be busy even when your device "sleeps", but 99.999% of other apps should be paused when going to background, and not consume any CPU cycles. Going to standby essentially pauses all threads and powers off most hardware devices on board unless some app prevents standby and forces the phone to go to unattended mode instead. Memory consumption per se doesn't affect battery life, memory chip's consumption doesn't depend on whether it stores 0's or 1's. So your solution is a bit too drastic, in my opinion.
[HD2 General] CristianM:
Hey guys,

I've been reading this forum for 1 year now, never registered.

I bought the HD2 and the Touch Pro 2 about 1 week ago.

After both of them (especially the HD2) lasted for less than a day, I began, like you guys, to worry a bit.

After reading pretty much everything there is to read about battery life in Xda forums, including this thread, I started to see what can i do to improve my phone.

My HD2 lasted about 9 to 15 hours at best, with a single charge, using less-than-moderate usage. That means:

- 15 mins talk time GSM

- 20 mins 3G data through Opera

- 20 mins Wi-fi data thourgh Opera.

- Location on, wheather update 3 hours, email POP3 update, 30 mins, headers 5kb.

- pretty much it.

I started to see what I can do to increase the life:

1. I have not applied any registry tweaks at all to my HD2, so no power management = on.

2. I have fiddled with ONLY the stock rom settings on my HD2.

3. I have installed battlog and it shows about 140-150 ma consumption during normal usage, as well as 5-9 mA during off times.

4. I have switched off WCDMA permanently, using only GSM (from Auto).

5. I have manually entered the GSM 900+1800 band, from Auto.

6. Stopped keys vibration and sounds.

7. Stopped location service and wheater updates.

8. Stopped tweeter and any other automatic updates, including email, and put them all on manual.

9. Stopped the Internet time Sync. I can adjust my own clock.

10. Disabled the Customer feedback AND error reporting.

11. Wireless LAN , power save mode = best battery.

12. I have disabled auto backlight and set it to 20% (it's super ok even in the brightest sunlight).

13. Dim blacklight after 10s, Auto off after 1 minute, auto off

After doing all this, charging the phone full, and removing the cable at :

20:19, Sunday night

It's now Tuesday 3:23 AM and my battery is at 57%.

So basically ~ 30 hours with less than half battery drainage.

I had still, less than moderate usage.

30m phone

30m browsing Wifi

60m just fiddleing with the phone

10-15 photos with camera at hi-res.

I have to mention that after I bought the HD2 I didn't made any .. "formatting" of the battery like others have said. Discharging, and charging for X hours or something like that.

As others know, I too know that Li-Ion do not have the memory effect, thus they don't need any formatting.

I'm pretty happy with my battery life now, especially since I live in an area where my GSM signal is 1-2 usual, top 3 lines (out of 4), and sometimes even disconnects seeking the GSM signal again.

Chris.
[HD2 General] EM_shift:
battery

I have disabled sense and use taskmanager. close all data com after use.

mine last 48-72 hours (2-3 days inc night) some bluetooth calls, 20-30 minutes of surfing every day and some fiddelig. I am happy with the battery as it is.

The battery is better after a 6-10 full charges then what is was brand new.

there must be something wrong with the HD2's that only last from morning to afternoon with "normal usage" since the two HD2's we have here at the office can last 2-3 days with normal charging and usage (thus "normal" usage is a wide definition)
[HD2 General] danielherrero:
Hi

In my experience the main reason for battery drain is to keep a 3g connection active. Simply setting 2G instead 3G (or auto) will keep your battery life for two days. HTC sense needs frequent internet connections and most of us use direct push. So if you want the battery lasts 24 hours or more simply switch 2G.

cons: When you need high bandwidth (surf web, streaming, youtube, etc) you ve to switch to 3G. There re several programs to ease this process but I dont want to switch the band each time I open Opera and the switch back again. I didnt ve this problem since my HTC Kaiser. I hadnt this problem with Xperia X1, Touch Pro2, Omnia2 and OmniaPro, probably because of their 1550 mA battery. I dream with an extended battery for my HD2 :(
[HD2 General] erdoke:
Or you can dream of a new version of WMLongLife, which switches to 3G automatically when whitelisted applications start (for example Opera, RSS reader), and switches back to 2G immediately after you exit these apps. :cool:
[HD2 General] mikolas:
This is it for me. Battery seems to keep up very well when I'm at work where there is good constant 3G reception. At home, the phone keeps jumping between 3G and 2G all the time (there are like 4 different cells surrounding me and lot of hopping between those) and the battery drains quickly. Same goes for my commuting where the reception is really, really, bad at times. But, this is nothing exceptional - same goes for my iPhone 3GS and the battery life is really quite similar to Leo with similar usage (lots of web browsing and multiple email accounts syncing). Performance does come with a price :-)

Hopefully some radio firmware update will at least enhance the battery life.
[HD2 General] SimonW500:
Can someone please confirm whether or not this statement is true? I've read conflicting opinions..
[HD2 General] mox123:
i will confirm if ive noticed a difference in a few days, ive been playing around with the phone, about no more than 10 sms a day, i made a call for a couple of minutes and it went down by 1%, then i did this again and then down again by 1%, this is with the data off,

however i did a 10 minute call then it only went down by 2%??

weird really weird,

i think there is a power drain when the screen switches off/standby and when it comes back on,

like turninf of a car engine and back on, it uses more petrol each time
[HD2 General] tkask:
I must say I was pretty disappointed after the first charge (6 hours after first full charge). But it looks like the "battery training" works and after few charges the battery worked well. I got about 2 days with "default" UI. True, the tips pointed out here helped me also (to fix the mobile network, switch off automatic downloads etc (I did not tweaked the registry, though)). Now I'm using the SPB Mobile Shell and to me it looks it consumes even less battery. At least it's my third day and I just started charging. During those 3 days I was on the phone for about 20 minutes, used Opera on wifi for about an hour.. Did some contact profile photos... Managed some calendar entries.... Plus alarm every morning (SPB Time, as the default one did not work). Looks pretty good now...
[HD2 General] eriche:
my battery suX

I am more then a little bit dissapointed :mad:

Last night I lost in standby (only weatherupdate every hour via HSDPA) 50% of my battery!

When just playing around - looking the menu - I loose almost every 2 minutes 1%.

Here is a battLog - ok I played a game - but during the rest of the time nothing special was running on my phone - and I lost damn much % of my battery :eek:

38% in a bit more then 2 hours

while 60% of the time was standby

http://gehts.freehostia.com/batLog.log

I can not post the whole LOG - so I put it somewhere else,...

Greet`s
[HD2 General] hkiride:
How long does it take till the battery's empty, when I am listening to music? Display's deactivated, little bit surfing on the internet. That's it.

Do you have an idea?

Thanks guys.

Cheers
[HD2 General] gargon01:
Hi guys,

As much as this being a very interesting thread, I feel that trying to compare battery performance from one handset to another is not really telling us too much. After all we would all have different apps and reg tweaks on our devices which could effect battery output in different ways.

If you ask me, it would be better for us to list what we have installed on our HD2's so we can compare and look for similar things so we can narrow down specific software or tweaks that could be responsible.

Initially, when I first got the phone, I was getting a good 1.5-2 days of moderate usage. After some installs and tweaks, I'm getting barely 24hrs usage and am sometimes losing up to 3% an hour on standby! I'll compile a list of what I've got installed, if some of the guys with severe battery drain could do the same, I'm sure that would be a good start.

Thanks
[HD2 General] bel_z_bub:
I think there's nothing wrong with the battery life.

I have weather checked every hour as well as email for 3 accounts, date/time, location service on and on standby it drains 1 % an hour.. I can use it for two days with an hour of calls, a little youtube, read a little forum.. about 20 sms.. couple of emails. two hours of music with bluetooth stereo, screen is set to 20% and dim after 10 seconds.. sleep in a minute.. bluetooth on.

I think that's pretty good for a device with the specs of a laptop from not so long ago that nearly lasted 3 hours on a battery the weight of 3 hd2's.

It also seems to disconnect after 6 minutes als after checking mail and when in sleepmode, the location service keeps running but I have a feeling it only updates time, weather etc when you wake up the device.. and still it disconnects after a while.. no tweaks..

I think we underastimate htc a little bit.. I think the battery just needs a little time to awake, and when we take it out of the box it's still so much asleep it drains in a day but also mainly because you use it all day when you just get it.. it made me paranoïd at first and looking for tweaks but non made any changes, in fact the tweak in the tips guide sticky in this forum made it worse. Also the newer roms have a different registry entry. Then it made me think.. why would htc make a device that drains the battery when you aren't using it. If it really was the case, that would be the first thing to fix. not an update for your calendar..

Probably not needed anymore with current batteries but I did "train" my battery as in letting it drain to only a few percent the first few charges and charge it all the way every time. I still have a feeling it helps.
[HD2 General] josep54:
I totally agree.

Since i've pretty much stopped "playing" with it and now just use it for calls, sms, email, weather and internet (slightly more than I used my compact 4) I get 2 full days out of it and it seems to be getting longer and longer between charges.

I also got a couple of spare micro USB cables - one for car, one for work. Now I can charge it pretty much anywhere (home, work, car, on the move through my laptop) I don't even have to think about how much charge is in it.
[HD2 General] prankstarr:
Battery life on HTC HD2

Hi,

I have had two HD2's. The first one went back after some random behavioural issues it displayed but I mention it becasue the battery life started out, well, crap. I used to get maybe 10hr off a full charge so I was charging over night and also in the evening at around 6pm - give it an hour or so charging and then id go out and about on my business and then before bed charge it up overnight and so on and so forth. Without the overnight charge, it could be at 100% before bed, and 8hrs later be at 65% with no back light on etc - data was on though. HOWEVER, after a period of time (that I did not track), may have been 3 weeks, I noticed that the battery started losing perhaps 8% over night under the same conditions and i actually got about 35 hours out of one charge with fairly heavy usage - 2 Mail accounts syncing every 5 mins (Hotmail as mail arrives), Weather updates every 15, stocks as required and twitter every 15mins as well. I would brows the web for maybe 1-3hrs per day. It was a marked improvement and I made no tweaks. I assumed the battery just "settled down". That said, I sent the phone back as I say and the new one is still experiencing poor battery life in line with the above - eg 2 charges a day could be required if i wanted to ensure i had battery life in the early hours of the morning if i was going out or what not. The irritating thing is that i know how good it can be! Im not sure if I was lucky with the first phone or if this new battery will also settle down after a number of charges - does anyone know if this is a common trait of Lion batteries - ie they have extended life cycles after a number of charges? If so, any idea how many charges? Thanks All!
[HD2 General] corleno:
Am I the only one who has no such battery Issues ?

I use the phone for just music/push mail/light browsing. I get battery life till midnight average
[HD2 General] pa49:
This is exactly how to treat the battery to echieve max capacity!
[HD2 General] pa49:
Your observations are in line with how these batteries perform better after a while of constant charging!
[HD2 General] emsee:
Where do I find the backlight settings to adjust them on my HD2?

ta

emsee
[HD2 General] paul211b:
Settings > Sound and Display > Backlight at the bottom.
[HD2 General] denizenx:
lol I tried flight mode for 8 hours overnight and didn't lose a single percentile...
[HD2 General] dameon12:
I got my HD2 yesterday and i cannot understand the power drain issue in some of your devices.

I only charged it 2 hours when it arrived (then it was about 3.00 pm) - then i used the whole day excessive like youtube, mp3, camera (i looove the camera), myphone sync, ... and the power went down to 21% till 3.00 am.

For a snap dragon this should be pretty normal and i remeber that the HTC HD was almost the same and really reached full battery life after 5 or 6 full loadings.

Today i didnt use the phone too much after loading it overnight and it still is over 60%. Of course i am using Duttys Task manager as i cannot understand why HTC dropped it in the HD2??!! Having opened 10 apps will clearly drain the power out of our beloved device.

I will try to use the fixes tho and report how long the battery will last with excessive use afterwards.

I was afraid when i read about this topic but for my first day with the divice i would say im pretty pleased with it. And like in every other case MORE is always better - so if the tweaks work i even get more power.
[HD2 General] afropolak:
My Leo works almost 3 days , everyday I make 3, 5 calls each for 3, 5 minutes, few sms, few mms , little playing with tools/games, or radio, and about 30 min. of wifi / day.

about 70h - really nice about 30% at day, and 10% at night

Basic rules - install all apps on device not on card, card reading really drain battery, fixed backlight to 40%
[HD2 General] cgrec92:
alright guys im not really sure what ive done but i seem to have fixed my battery life! ive even increased the backlight to 60% instead of 20%

from 8.00am to 10.20pm now im still on 65% battery with half an hour of browsing, about 50 sms, half an hour of music, about an hour of general playing around

below is what ive done:

1) applied the power management tweaks posted at the beginning of the thread

2) installed wmlonglife - actually very useful! can be found in this forum, it simply turns off and turns on 3g/connections to what you set it as, very convenient!

3) (this seems to have done it for me) i installed bsb tweaks and enabled the power management setting

i am using artemis rom v 5.5 which has eReader

i have formatted my sd card three times - this didnt really make a difference for me

hope this helps guys
[HD2 General] nasserbaig:
I am sorry If this is silly but I cant find either advanced Configuration in my phone nor do I know where to find

HKLM\Comm\AsyncMac1\Params OR HKLM\ with anything where do i find these HKLM folders
[HD2 General] cgrec92:
install the total commander cab which can be found in this forum, then just double tab the folder called // and double tap registry.

voila
[HD2 General] elburna:
Man sometimes i wonder why people just dont google... Would be ten times faster than an answer in a forum...

Advanced Config = Program NOT installed on your HD2, get it somewhere on the web

HKLM, HKCU, etc. are no Porgramfolders on your phone but registryfolders/-entries. Use a registryeditor such as the one from Resco Explorer (costs), Total Commander (free) or similar

Cheers
[HD2 General] HTCHD2_2010:
I do get worried about people who have not got the concept of where to find

registry setting, wanted to play around with their HD2 settings.

I would say do some basic reading before messing up your HD2 as it is not

an Iphone or Nokia but admittedly it is very powerful and fun once you

got the fundamental concepts.
[HD2 General] illanz:
With my current usage I remove the charger at 7 in the morning and it turns out of battery at 9 in the evening.. That's so poor...

No MP3, a bit of internet (HSDPA) and a dozen of calls...

I'm a bit desperate...
[HD2 General] arch3rm:
I'm a long time lurker here and first time poster,

Just read through this entire board, been having real issue with my battery, I'm thinking its being in poor reception, I'm gonna test day to day usage with a Telstra Sim to see how that goes.

But I'm was thinking about this and no ones mentioned it

but wouldnt the features of Pocket mode ahd Dim ringer on pick up use quite a bit of battery as per the G-sensor would always be active?

Correct me if i'm mistaken here.

Testing tomorrow with Telstra Sim, 30% brightness and messed BSB tweaks, shall post results
[HD2 General] Wildcopper:
I'm a lurker too, reading since a while.

I'd like to stress one thing that has been said in the first pages already...

The HD2 is a multitasking device which doesn't automatically close most applications when you just use the "cross" top right on the screen. It just puts them to the background, but they still run.

I have put the Task Manager Icon on my starting screen, and I regularly clear up background tasks I no longer use, specially when I'm about to stop using the phone for a while (like for the night). It makes a huge difference in battery life.
[HD2 General] Eggy88:
Managed to change the name on of the keys, should the be a space between the "C" and the "L" in SDMemory_C lass (HKLM\Drivers\SDCARD\ClientDrivers\Class\SDMemory_C lass\High_Capacity)

Looks like it in the post but if i recall right the should be no space in keys.

Thnx
[HD2 General] fards:
wrap it with

[\Code]and it will format properly...
[HD2 General] typex:
BT a battery drain

Thanks to all for your posts here.

I have been worried by my HD2 battery consumption, some 5% per hour as a minimum so I did some testing using battlog.

I have activesync always on with items synced as they arrive. its the only program running.

With bluetooth on I have an average current consumption of 45mA.

But with BT off it goes down to 12mA, 4 times less!!!

I did not see a big difference between 3G and EDGE, but I need more testing on it.

So it is goodbye to BT for me.
[HD2 General] jnlinh:
turn off your phone to save many more :D
[HD2 General] Richy99:
i found disabling wifi made a huge difference