yashsingh1/xdaforums huggingface dataset:
[HD2 General] Danielfr:
Battery drains even in airplane mode

I have charged it to 100% (led was green) . The phone was in airplane mode, and I haven't used it for 3 hours . But I had already lost 5%.

After in phone mode, without making a call, just checking mails via Edge, and consulting my calendar for 5 minutes , my battery indicated 90% an hour later.

My battery is maybe defective?

Daniel
[HD2 General] Pixel:
Are there any programs to automatically drop from 3G to GSM when reaching a certain battery level?

Alternatively, if anyone knows how to do it programatically I might try and knock something together to try and do this.
[HD2 General] Biffy:
I've followed the tips on the first post of this thread and am also keeping display on min brightness when indoors.

Last night, I made sure all apps were closed and no auto downloading. At 11.51pm I had 77% battery and at 7.06am I had 74% which I'm pleased with. Now at 10.19am it is 72% and only woke up once for an alarm. Oh and data connection was enabled the whole time but shouldn't have been used by anything.

I've also set the battery polling tweak to 60sec rather than 20sec, but this shouldn't be a huge factor.

I wonder if HTC didn't enable power saving features because they were keen to get maximum performance out of device or maybe just lazy / rushed.
[HD2 General] mallman:
after reerting back to original settings i am now able to access the marketplace over wifi. I left the sdcard power changes though and that doesnt seem to affect it.
[HD2 General] claude4:
batt life with blue tooth headset

Not sure why I have not found this asked yet BUT.... I have an X-7501 paired to a Jabra BT headset (had various models over the years, currently BT-5020) and I wear my BT headed set ALL DAY and have found that leaving BT always enabled on the phone DRAINS the battery BIG time. I can't last a whole day on one charge if I make many calls.

Long story short; has anyone tried to see what the drain is with HD2 with BT on all the time.

Will it last the day with light or heavy phone usage?

Curious minds want to know.

Thanks,

An ATT user who is hoping for miracles early next year, if you get my drift!
[HD2 General] rovex:
I have no issues with battery life. The supplied case seems to keep activating the screen all day, yet even with lots of use (showing it off still!) i still only lose about 40% in 18 hours or more.
[HD2 General] d3l1:
BT has some sort of power-savings when it is idle. You will have to try if it makes a noticeable difference for you if you leave it on. You should note that BT can be a securtiy problem when it is on all the time, it's quite easy to mess with your phone via BT. It's just not safe, same as WiFi. I can only recommend switching it off and only turning it on when you use it.

I got my HD2 yesterday and I charged it at around 5pm. It's running for ~20 hours now and I've been using it a lot, using HSDPA, Wifi, BT, ... and my battery is now down to 30%. I use flightmode during the night, my backlight is manually set to 30% with "auto backlight" turned off, I applied some tweak like "autodisconnect data after 60s" and others. I will see how long it lasts, recharge it and in the next week test how long it lasts with normal daily usage.
[HD2 General] Pixel:
From full overnight charge this morning at 7:50 to 60% at 12:30 - 40% drop in 4.5 hours. That's with wifi off, mail checking every 10 minutes (2 accounts), twitter hourly, weather 3 hours and 1 hour of calls. Bluetooth on, hidden and not connected. I've applied the reg tweaks at the start of this thread, and the auto-disconnect data tweak.

At this rate I'm going to struggle to get a full day. I hope they release the extended battery soon.
[HD2 General] Pixel:
What services have you got running? email, twitter etc... and what's your network coverage like? 3G or 2G?
[HD2 General] yngvebn:
I have now disabled all automatic downloading of data, I'm not checking mail, I've sent 5 sms' today, checked the news in Opera earlier this morning. Other than that I've turned on the display once in a while to check if I missed any calls/messages.

My battery has gone from 80% to 5% since this morning (6 hours)

As I typed that, I turned on the screen, and now it's 3%....

Seriously. Anyone?? This makes an otherwise brilliant phone useless!

EDIT: I've also checked that no applications are running in the background, and the only thing listed as "On" in comm-mgr is "Phone"...
[HD2 General] madindehead:
My battery is on 49% now. I unplugged it at 8.30. Now 12:48.

I have made 3 longish calls (10+ mins), browsed the internet a bit (15 mins or so).

Received one text, and sent two. And listened to music for about 15 mins or so.

For 4 and a bit hours that battery drain still seems quite fast to me. Maybe it's just my usage. My internet is usually always connected (when I have signal) and I appear to have better H signal than my old X1.
[HD2 General] wilbur:
so the notifications bar of my HD2 tells me I've been connected to the internet for 5:02 minutes (since i turned it on) and my battery is 78%. I have location etc on, pull POP3 email, but my exchange email isn't working yet (google issues), and i've been playing with the phone using Opera10. i'm pretty happy. I've been using the phone more than normal, but generally down to 20% by the time i get home at 7:30pm.
[HD2 General] HSKalay:
Hi guys, I'm totally new to this - have been briefly going over other threads as to the basics of tweaking - in regards to the battery ones, to apply these tweaks, i'd need a program to edit the registry im assuming (Resco?)

And as far as I know, the data auto disconnect one only applys to email (not sense app, like twitter, weather etc)

Any quick pointers would be great! and I'll get started on this.

As far as bat life goes - I was at 90% last nite around 11:30, put the phone in to flight mode at nite, till 7am - been doing the odd usage here and there, sending texts, no calls tho. at the moment i'm at around 34%. But I have turned updating off on twitter, weather, mail etc.

I was hoping it could of been a lil bit better, but yea :( it's running a pretty hefty CPU and screen.
[HD2 General] tboy2000:
This sucks. The battery life is the biggest negative of this great phone. There has to be a fix somewhere. Auto disconnect for all data downloads and on standby is what is needed.
[HD2 General] yngvebn:
This battery-issue has to be a serious bug from HTC. Check out this article:

http://www.htcphones.net/htc-hd2-battery-test/

It's pretty much the opposite of our problems.....
[HD2 General] jakem:
That doesn't seem right at all. To compare here's a rundown of my day:

The phone was fully charged when I unplugged it at 8am this morning. Since then, I've spent about 10 minutes in Opera, sent a few emails, made a couple of calls that rang out and spoke to someone for about 10 minutes. My inbox is connected to my Exchange account and I've been downloading mail all day and updating the weather every hour. Other than that, I've probably spent an additional 20 minutes just playing around.

6.5 hours later my battery is 79% full. My screen brightness is set to 30%.

The only tweaks I've made were to a couple of registry settings (not the ones in this thread) that disconnect the data connection when it's not required but the phone's reporting that I've been connected for the last 1:23.

EDIT: I've just seen your post above and I'd say that my phone is probably behaving similarly to the one in the article.
[HD2 General] shu8i:
i jost lost 30% in 1,5 hours
[HD2 General] yngvebn:
Thanks for your reply! Didn't get around to change the registry settings in the first post, and now the phone is out of battery.. Will try that when I come home, recharge, and post back here with my results tomorrow (or whenever the battery dies :))
[HD2 General] jakem:
One other thing, I'm a bit anal about closing applications once I'm finished with them so I rarely have anything sitting in memory. Perhaps that helps???
[HD2 General] shu8i:
i did this now, but could someone tell me what this does? only turn on powermanagement? and what is this powermanagement going to do? i would like to have my push mail weather twitter etc.
[HD2 General] Pixel:
Today I got through 60% battery in 9 hours, with email and updates on, browsing and a few phone calls. suggests 12 hours should be good. I'd like 24 though.

Interestingly, it seemed to drop to 50% really quickly, then slow down for the last 10%
[HD2 General] Areinu:
Considering how some people have really awful battery life and others just great it might be some kind of bug that even though phone does nothing drains a lot of energy.

Remember? Kaiser used to have a bug where after turning off GPS the battery would drain terribly fast and sometimes even device reboot didn't help. Obviously battery drainage has to be tested by someone who knows what he is doing...
[HD2 General] mr_Ray:
First full 24 hour usage

In 24 hours I've done

2-3 hours internet usage over 3G

30 minutes phonecalls

25 SMS

10-15 photos

1 short vid

40-50 minutes GPS

about 1 hour solid sync with MyPhone (tons of SMS)

1 hour ebook reading

15 minutes music

4-5 youtube vids

downloading and installing about 10 apps

3 mail accounts syncing hourly

twitter syncing hourly

frequent weather updates etc

tons of playing around with settings, setting up facebook sync, showing off Sense, marketplace, general getting used to the device.

And I still have 15% battery left. I'm pretty happy with that!
[HD2 General] Nit3m4re:
Why do i find this hard to believe without a single charge lol?
[HD2 General] erosennin:
Could it be a memory leak of some sort? Using high amounts of memory although not in use will certainly drain this beasts power.

1 more thing re data connection, if data connection is connected and all auto downloads etc etc are disabled is it safe to say that no data will be used?
[HD2 General] mr_Ray:
It's not that unreasonable. It's in the same area as what I'd get from my Touch Pro and not as if any of it is really CPU or graphics intensive.
[HD2 General] snowblindd:
Hey guys, if the thread still goes on, for those who experience battery drop-downs, uncheck htc location service (or google location service), even disable it for good if you don.t use it (there is a cab around here that does that). Location service connects to network everytime you wake-up your device, to check your location/weather etc, huge data traffic constantly. Now it won.t do miracles but i noticed a big difference on my device after i unchecked that. 20%backlight on battery won.t harm your eyes either :)
[HD2 General] hnparedes:
To me, the biggest issue to a "bad" battery life is the network coverage. If the area where I am there's a good coverage, the battery life lasts long.
[HD2 General] jakem:
I don't find it that hard to believe.

When I got home last night my battery was at about 75% (see my previous posts in this thread). I switched on Wifi and left it running for the next 7 hours. In that time I connected the phone to my laptop three times for a total of about 5 minutes so I topped up a tiny bit. I was playing with settings, installing/uninstalling apps, using Opera pretty constantly for the rest of the night and when I went to bed my battery had just dipped below the 50% mark.

That's just over 50% depleted from 8am to midnight with lots of usage and only a tiny, unintended charge.
[HD2 General] Xaddict:
Rushed release

You may be right.

Maybe HTC wanted to show off the performance, and haven't optimised power usage.

I think they have been putting an enormous amount of energy into it though, going on the developement of Sense which we have been enjoying on this site, but sometime they would have had to stop and release it.

HTC are not very good with service packs/bug fixes, hence XDA-Devs.

I'm thinking of the Polaris.

Hopefully some power management optimisation can improve things.

With screen and 1Ghz cpu there must be a load on batteries, but from comments here, it still beats iphone.

I remember my XDA II was a power hungry thing, and so was the Flame.

The HD2 is still better than those 3, but not like the HD.
[HD2 General] d3l1:
finally somebody mentions that. most people just complain but forget that very important fact.
[HD2 General] mr_Ray:
Very much so.

Probably the worse place you can be is somewhere where you can just about pick up a 3G connection. The phone connects, struggles, trying as hard as it can to stay connected, fails, reconnects to 2G, sits for a while, notices that there's a 3G signal, disconnects from 2G, tries to connect to 3G, and the process starts all over again.

Doubly so if you add data connections into the mix.
[HD2 General] erdoke:
I can second that, it was also a significant boost in battery life for my HD2 after My Location service was disabled.

Theoretically the manufacturing process (GP) which is used for Snapdragon is different compared to the majority of chips, to OMAP3430 for example (LP). Lower quality materials used for gates which results in lower electrical resistance. This way lower voltage is enough to power the chip, but at the same time leakage is a bigger issue. So (again, theoretically) a Snapdragon consumes similar power when under load even at higher clock speeds, but loses more when down at stand-by stage. Translating it to everyday battery life experience, we should find shorter overall battery life mainly due to higher stand-by power consumption. If you are a hard core user, battery life is not much different (less than 1 day) to other devices. On the other hand if you do not use your HD2 a lot, battery life will be significantly shorter.

Check bottom of page over here.
[HD2 General] HSKalay:
thanks for the tweaks, they defo have made a difference as far as i can see!
[HD2 General] erik.alphenaar:
Today was my first full day of HD2 usage. Just got mine yesterday.

Being used to the exceptionally bad battery life on my old Touch HD, the only thing that I thought should be improved next to the speed, was the battery life.

When the led started shining a beautiful green after a short 2hr charge, I was eager to start working with it right away. Why should you leave a device like that laying 'round to charge for hours :) . This resulted in the battery dropping like mad, reaching 50% in just a couple of hours. This kind of scared me, having had the bad HD experience. After around 5 hours the battery had only 27% left, and I started to look through this thread.

I used all registry tweaks, changed intervals between mail synchronisation, disabled HSDPA (3G only) and half way today, I've also disabled the location service.

Unplugged it from the mains at about 8:30 this morning, and it just died on me at 0:00 this evening. In my opinion, a staggering 15 1/2 hrs of showing off the device quite a lot ;), downloading multiple megs, browsing and zooming through a lot of high res pictures, benchmarking video in coreplayer, etc.

So basically, I've just should have left it to charge a bit longer :D . I'm sure it'll reach longer battery life once fully discharged and charged again.

Like discussed here earlier, I do travel through an area with lots of dim coverage for quite a long period a day, where 3G is either just available, or just not. If I would disable 3G in those area's, should that decrease some drain?

Thanks for all of the tips here to keep drain to a minimum, but I do feel it shouldn't result in users having to disable all of the features they bought it for in the 1st place...
[HD2 General] snowblindd:
It.s so funny how this happens all the time :)

The HD2 is by far the best device i had, perfect for what i use a gadget for ( mobile phone is too little for what HD2 can do).

BUT, again, if i really want to use it at full potential i realize i can.t, not if i want to make calls in the afternoon :)

I just hate the fact that we have to spend 600 euros for a device that has to be used on edge with dimmed light, location and data services disabled (nice features by the way)...it kind of rips off the actual potential of the phone

Anyway, the ideea is that HD2 it.s just like any other high-end device on the market (better in specs though) when it comes to battery. If you want to last, you kind of have to abandon some featureas (i for example just hate switching between 3g and EDGE)

To get back to the topic, for the ones of you that are not that keen on 3g connections at all times, try wmlonglife:http://xdaforums.com/showthread.php?t=478519 it is one of the greatest apps in my opinion and saves alot of battery (it switches betweend 3g and 2g automatically depending on how you configured it + nice interface) Give it a try and see. (but do read instruction first ! :) )

PS: I wonder how many movies i cand watch on the go on that gorgeous HD display before it dies on me :)
[HD2 General] erdoke:
I kind of disagree on that. The My Location service is not really useful 99 % of the time and does make a difference to battery life. Usually I want to know weather conditions for another city not for the one I am staying in. For that it is much easier to look out the window... ;)

Also, the animated weather Home is fun only for a couple of days, after that becomes more and more annoying.
[HD2 General] snowblindd:
i said nice, not useful (though to some people they are), anyway my point is that u can.t use the phone at a fully potential without running out of juice really fast.

and for example i do use alot of 3g but others prefer edge; some do alot of gamimg on it while others use it for browsing the internet, so the use of features depends on the user

ps: i don't use location service either:)
[HD2 General] Pixel:
agreed. even with 3g and location on. I was hammering it yesterday with browsing and footprints, on top of normal regular twitter, weather and email. from 8 to 5 70% - may seem a lot but I was using this where I might normally use my netbook, which only gets 2.5 hours. treating this as a mobile computer is obviously going to hurt battery life.
[HD2 General] CobraMods:
GumMobile

those in the UK looking for a source for the sim free HTC HD2 should give GumMobile a shot.

http://www.gummobile.com/phones/HTC_HD2_Sim_Free.aspx

top notch service to say the least.

as a word of note i first tried play.com, called to verify they had them in stock before i placed the order, was told they had "Plenty" so i hit the button to order online.

3 mins later i get an e mail telling me thank you for your order, we are sorry but we currently do not have that model in stock and it will be between 6-7 days before new stock arrives.

i picked up the phone as if i were a prospecting customer again and asked about stock, was told, yep we have 16 of them in stock right now ready for delivery.

at this point i am surprised i was able to keep my cool without shouting at the moron on the phone who is obviously paid to take as many orders as he can regardless of stock or not and asked him, well if you have them in stock ready for delivery then why is it i have an e mail saying i have to wait a week for new stock to come in before they can send my unit out..

funny enough the phone went real quiet for about 15 seconds, his reply was " oh i am sorry, the system is showing our incoming order as being in stock , i was looking in the wrong column"

told him politely to piss off and had the card transaction reversed by my bank.

10 mins later i found gum mobile and had the phone within 2 days.

e mail confirmation of order was quick and a follow up e mail when dispatched, the salesman there even shot me a personal e mail with a UPS tracking number just in case i wanted to follow the phone to its destination.

cant give them enough praise, for your next phone give them a shot if your looking for sim free =o)
[HD2 General] Hyweljh:
What does each of these do? I want to apply them but want to know exactly what they do so I understand whats been changed!
[HD2 General] d3l1:
oh come on, just read the parameter: "DisablePowerManagement"

is there more to say? it seems DisablePowerManagement is currently enabled which means it doesn't go to power-saving mode. so you disable that and voila it should go to power-saving mode.
[HD2 General] pinttas:
It would be nice a battery with more capacity.
[HD2 General] Hyweljh:
Yes but when a power saving feature is enabled it means performance is then hindered, for example SD power saving most probably means a delay when the SD card is being accessed, and because I use programs like tom tom which are intesive on the SD I wont be enabling that feature! I just want to know what the other regedits do so I know where to expect a performance decrease on a device that was bought for performance!

Maybe I should of been clearer in my original post!
[HD2 General] d3l1:
Power saving means it that the device that saves power (SD for example) goes to a suspended mode while it isn't accessed. When you access it, it has to go to a normal mode again (think of the sleep mode you have on your windows pc, it's back almost instantly) and will operate normally until it isn't being used anymore and then it will suspend again.
[HD2 General] cfu:
so am I the only person here who thinks that the battery life is good on this handset? I have been playing with it constantly and find that it can last 2 days easily. I have not done anything special with it. with hspda on constantly it lasts a full day. i.e. 100% at 8:00 - 15% at 23:30.

today 100% at 12pm - 85% at 8pm, wifi on and web browsing for 3hrs.

seems pretty good to me. icould never get this out of my hermes or iphone 3gs.

maybe i have mini fusion reactor in mine!
[HD2 General] Hyweljh:
Yes I understand that, but more specifically what does things like:

HKLM\Comm\PPTP1\Params

&

HKLM\Comm\L2TP1\Params

&

HKLM\Comm\AsyncMac1\Params

do?

I have no Idea what PPTP1 or L2TP1 are?

For all I know they could be something key to making the phone coverage work? you know what I mean?
[HD2 General] Step2p:
Enabling power management for SD card may corrupt the filesystem in your card.

It has happened to me before with my Silicon power Class 6 16gb SDHC.

I noticed that the corruption happened some days after I enabled the power management feature in my X7500 (Michyprima's R6.1 rom).

The problem may occur in the following way:

You open an application that uses the secure digital in order to write data (f.e opera using the sd as cache). The application initializes the secure digital. Then you minimize the application and continue to work in your phone using other applications without access to the card. Due to prolonged inactivity, secure digital enters the hibernation mode. So, if you now go back to opera and try to load another webpage it will attempt to write on a hibernated card (the application considers the card already initialized), which may create a file system corruption. Thereafter, the only solution is to reformat your card.

Power consumption due to sd is very low. I have tested it on my X7500 which gets weeks of standby (I use it only as a pda with radio off).

I would recommend not to change these values unless there is a device specific bug (like ipaq 210 and the Niellm syndrome, which was caused by compact flash power drainage)
[HD2 General] jabbawalkee:
Can someone tell me where I can find HKLM?

I've looked all over and can't find it. I obviously have File Explorer and I also have Total Commander...if someone could tell me how to find HKLM that'd be awesome - a lot of tricks require knowing where it is and obviously I'm a beginning and can't figure it out.

Thanks in advance guys.
[HD2 General] sumitescp:
You will need a Registry Editor like Resco
[HD2 General] leek:
HKLM = HKEY_Local_Machine, one of the top levels of the registry. You can find it with a registry editor such as PHM Regedit, which is free.
[HD2 General] jabbawalkee:
Just figured it out...thank you :)
[HD2 General] JecminekMaselnik:
minifusion reactor is the only way. 3 hours web browsing on wifi and 15% battery low only? I think, it cannot be true, sorry.

Touch HD I can 2 days use, but HD2 in the same mode only 1 day, ins't good....