yashsingh1/xdaforums huggingface dataset:
[HD7 General] sutt359:
I've had mine 2 days now using it non stop lol can't get it out of my hand. I've charged it twice I'm hoping once I've got over the shock of Wp7 I can get it to last a little longer. If you turn off all the auto sync options should last 2 days.
[HD7 General] xma1e:
Also remember, all new phones should be fully charged and then fully discharged a couple of times before you start to see the "life" of any further charging.
[HD7 General] lqaddict:
Did HTC outfit the phone with a Ni battery? It's a joke! You should calibrate your phone OS to the battery, but going "you must condition your battery" was relevant with old batteries with memory chips in them.
[HD7 General] xma1e:
Since you're so knowledgeable, maybe you should go and find out rather than take the micky of others?
[HD7 General] Will101:
Out of habit I always cycle new batteries fully a few times but reading about Li-ion batteries on Wikipedia, it appears they aren't susceptible to the same characteristics that Ni-Cads were.
[HD7 General] Adam86:
Finding battery life quite poor so far...althought its a bit odd that when the lights turning green to say its charged when i look in WM status its showing about 3 qaurters :-S do you think theres something wrong?
[HD7 General] adesonic:
It is a big screen smartphone. It needs charging every day just like my Desire, My HD2, My Palm Pre, My Touch Diamond2 etc.
[HD7 General] lumpaywk:
i just make a habit of plugging it in at night and i get my full days use each day :) one thing I did note was turning the setting that update Microsoft off saved a lot of power.
[HD7 General] diablos991:
A lot of phones, including my nexus one, the charging light will turn green before the 100% battery level. My nexus one's light turns green at about 90%.

I believe there is also a feature to cutoff charging once it reaches a certain point to avoid over-charging.
[HD7 General] Adam86:
Hmm i wake up at say half 3 in morning and see its green and 3 qaurters charged and then when my alarm goes off its exactly the same :-s
[HD7 General] adesonic:
Where is WM status?
[HD7 General] Eskibo:
I wonder why they don't use AMOLED screens like Samsung. Their Omnia 7 supposedly lasts 16-18 hours even if played with massively.
[HD7 General] Spybreak:
Because that is not true. For one, S-AMOLED screens have lower pixel density which makes everything look fuzzier, especially text. Yes, contrast ratio is fantastic, but I'd rather have a clear, sharp screen than a contrasty one.

As for power, they use very little when showing black, but consume a LOT when showing white, even more than LCDs. So they're awful for browsing the web as most websites use white backgrounds.

http://images.anandtech.com/graphs/wp7_102010191901/25168.png

http://images.anandtech.com/graphs/wp7_102010191901/25169.png

Look at how the AMOLED based phones are last on the list, due to the screen; and that is even considering that all the Samsung Galaxy S class phones (Focus, Omnia 7, Captivate, Epic 4G) use a 1500mAh battery, which is greater than what HTC has been putting on their phones (1200-1300mAh).

The winner in WP7 battery life is the LG Optimus since it uses a standard LCD screen AND a 1500mAh battery.
[HD7 General] forelli:
Hey folks, to all of you interested in bettering the battery life: when I had my Desire, someone posted an interested trick in a thread, can't find it anymore but I do remember the procedure and indeed it imroved my battery life, so just try it and please report:

1- With the phone on or in standby mode, full charge until the led turns green,

2- Unplug and power off the phone

3-Plug again the AC charger into the phone still powered off and wait until the led turns green.

That's it, now your battery life should be better now, and the good thing is that you need to repeat the operation only if you buy a new battery.

f.
[HD7 General] mikee1680:
The battery life is definitely poor. I've been using Android for 2 years, and I thought their battery life was bad. Overall, I'm very satisfied with the HD7. It gets the job done for me.
[HD7 General] adesonic:
With moderate use I easily get 16 hours out of mine with charge to spare
[HD7 General] pittphan:
Its better than Android and the amoled screen, so I'm happy with the HD7 battery life.

Sent from my HD7 using Board Express
[HD7 General] /)4rk H4r8!n93r:
I have had mine for about two weeks now and I charge it every evening while I sleep. It will last me the 12 hours I am at work and still have 1/3 of a charge approx. when I get home. I have the screen turn off after 30 seconds, and the bluetooth is off but other than that it update emails as soon as it sees new ones, my WiFi is on, and I use it to look up things off and on all day probably about 3 hours of web surfing during the day. Over all I am very satisfied with battery life. I could probably get more if I turned off the updates for email, turned off the 3G till I needed it, turn off the WiFi till I need it, lower he screen brightness, etc. But if I can make it through the day with it configured the way I have it now with 1/3 of a charge to spare I am happy.
[HD7 General] rysky007:
When you plug the phone in to charge while its powered off, it auto turns it self on, no?
[HD7 General] rob_p:
How long have you had the phone - that sounds like the OS is still adapting to the battery and hasn't yet worked out the full range?
[HD7 General] digime:
From a full charge I get about 3 hours streaming music playback before the phone turns itself off.

I love the HD7 but really wish they'd put a bigger battery in it.
[HD7 General] zeka1974:
Correct, this happened to me too.

I saw in user guide that this situation can happen when we charge our HD7
[HD7 General] phenixdragon:
For me it's the best battery life I have ever seen from a smart phone. Better than my extended battery for my Treo 700wx, HTC HD, HTC HD Pro, iPhone 3G, iPhone 3GS, Nexus One, and G2. None of those phones could I make it a day while the HD7, I'm making it well over a day.
[HD7 General] V3RMILLION:
Just thought I'd throw this out there, but last night I was looking through the menu settings and I found an option under "Phone Update" that says "Use cellular data connection to check for updates" and one under "Music + Videos" that says "Connect with Zune."

I turned both options off and today I found my battery performance to be noticeably better. I made it home from school and found my battery at around 50-55% (estimating it off the little bar since there is no actual % indicator) where normally I'd come home to around 20-30%.
[HD7 General] yly3:
A strange thing happened to mine. I charged it so far only untill it gets fully charged and I got a full day I guess but after I tried charging it longer (a kind of "format") it lasted me yesterday only 9 hours with 3 and 1/2 hours of music playback and ocassional browsing (I think 30 minutes in total). Not really impressive.

I am still waiting a bit longer maybe it will catch up , it's been only the 4-5th charge so far the first one being through laptop. If things does not change buying a 2nd one is not too far away
[HD7 General] chr5s11:
I noticed a great increase in battery life after I disabled the setting for my GPS.
[HD7 General] rysky007:
I see the first setting, but cant find the music and zune one, can you give step by step to were you control that setting?

Thanx
[HD7 General] rysky007:
Fully charged mine over night, started using it at 7:30am.

Email set to auto check and dl every 2 hours - 4 separate accounts. 173 Emails today

Made 18 phone calls, a few lasted 30 min, avg was 6 minutes per call

28 text messages.

Phone shut off by 5:43pm.

Will monitor this every day and report.
[HD7 General] V3RMILLION:
Sure, it's Settings>Applications>Music + Videos. Also, my GPS is off so that probably contributes to my battery life.
[HD7 General] rysky007:
I must be on crack, but I dont see a applications in my settings, we are talking about the HD7 right?

I got :

Ringtones and sounds

Theme

Airplane Mode

Wi-fi

Bluetooth

Email and accounts

Lock and wallpapers

Location

Cellular

Date and Time

Brightness

Keyboard

Region and Language

Ease of access

speech

Find my phone

Phone Updates

about

Feedback

No Applications, that was on the HD2 we had that, but not HD7
[HD7 General] V3RMILLION:
My bad. You're under System. Swipe to the right and that will take you to Applications and then you'll see Music + Videos.
[HD7 General] nrfitchett4:
you do know that in almost all things you can swype side to side for more things. You can even see the beginning of the word (applica)
[HD7 General] Sultan1993:
Thinking of buying HD7, and I have a question :)

Will battery last a full day if I will be:

- Listening to music for 8-9 hours

- Surfing web with 3G for 40-50 minutes

- Playing games for 30-40 minutes?
[HD7 General] yly3:
Almost surely not. But who knows you might get some lucky device. Just check some replies from this topic.
[HD7 General] rysky007:
U see the chance and jump in to be a smart ass, figured you would,

the person that message was intended for, answered it in a proper helpful form.

No need to try to sound smart here buddy.
[HD7 General] rysky007:
Updated to battery.

Did a full charge at 7:30pm to about 9pm,

Then did the turn off and plug in till light comes on green trick mentioned earlier, just to see it would work.

Also disabled the additional functions mentioned earlier to improve time.

Played with the Market place a bit last night, they added new apps, and noticed the metal strip on the back of the bottom cover was getting hot while browsing, something it has not done before.

Removed the battery let it cool, started browsing the market again, it got warm again, not sure if its the heat from the screen or what but all the browsing I have done in the past have never felt that before.

DL'ed Shazam and a radio app last night, turned both on for a minute to test ( since no task killer) assuming they running in back round.

Turned on alarm app at 2:30am, it operates when screen is in lock mode, so were in stand by, when alarm went off at 7;30am, phone was on critical battery and shut off 8 minutes after I woke up.

I know this thing runs the apps in some minimal way, but im sure if we can get a task killer, we can all improve our battery life. I expected it to be 25% left, but not fully dead.
[HD7 General] Creka:
I don't understand why the other manufacturers offered WP7 with at least a 1400mAH battery (Dell Venue Pro) or a 1500mAH battery (LG and Samsung) where HTC only offers a 1230mAH battery. Is the HTC WP7 models more efficient?
[HD7 General] SugarMouth:
Ya largest screen device, smallest battery.
[HD7 General] yly3:
In fact, has HTC ever provided an extended battery for a phone? Much like Nokia did it in 2006 with BL-5C ?
[HD7 General] rysky007:
noticing more and more since the HTC hub update, my battery is lasting less and less and the back of the phone heats up when I use it.

I have disabled every auto update feature will see if it improves on that,

any one else having heat up issues?
[HD7 General] V3RMILLION:
Mine only really heats up if I game on it for a while. I honestly believe our battery issues are based on a giant phone trying to get by on a small battery. Stupid HTC.
[HD7 General] rysky007:
wow, fully charged last night finished at 9pm, phone sat idle till i activated an alarm app at 2:15am.

Just woke up, 25% left on battery?

WTF, every since i did the hub update, my bat life went to crap even though I have the auto features disabled,

We need a task killer.
[HD7 General] microhaxo:
I get ~ 15 hours of life from my hd7. Unplug at 6 am and by 9:30 the led starts blinking orange.

On average i listen to about 1 1/2 hours of music, browse the web a little and send ~ 100 texts with 5 phone calls each around 6 min.

I do not have the htc hub installed, gps enabled, feedback disabled.
[HD7 General] rysky007:
which brings me to a good point, how do we uninstall, just by holding it down and selecting delete from the menu? or is there an actual uninstall feature?
[HD7 General] microhaxo:
swipe to your list and long hold on the htc hub, uninstall is an option.
[HD7 General] rysky007:
thanks, that was a dumb question on my part, as soon as I sent that, i went and checked and saw the uninstall option there.
[HD7 General] yly3:
A miracle happened to mine. Just before I decided to buy the 2nd battery I did another charge. I didn't play music for 3 hours straight again but I did use some WiFi/HSDPA browsing for like 1 hour and some overall talking after 13 hours it's at 50% . Now that's some progress. Oh I forgot to say that I plugged it in right after the HTC Hub update. I doubt it had anything to do with it, but it's worth mentioning
[HD7 General] rob_p:
With medium use it has about 25% left at the end of the day. If I really hammer it then it will be nearly dead by the end of the day. I don't yet use it for music so still can't comment on that side of things.
[HD7 General] digime:
Aparently Mugen have just launched an 1800 mAh Extended Battery for the HTC 7 Mozart.

Maybe they'll do one for the HD7 soon.
[HD7 General] digime:
I sent them an email asking if they were going to do a battery for the HD7. Here's what they say:

"Yes, will be online tomorrow and the first shipment will be end of December."

Yay.

Website here:

http://www.mugen-power-batteries.com/
[HD7 General] eternalemb:
Nice! =D definitely getting one
[HD7 General] yly3:
Sweeeeet. But I really want that Vaja case so I will have to deal with 2 genuine batteries :)
[HD7 General] digime:
OK, looks like they do a 1300mAh extended battery with existing back cover:

http://www.mugen-power-batteries.com/mugen-power-1300mah-extended-battery-for-htc-hd7-t-mobile-9292.html

And a huge 3900mAh one with a new back cover (no picture yet):

http://www.mugen-power-batteries.co...tended-battery-for-htc-hd7-t-mobile-9292.html

Shame, I was really hoping for something inbetween the two with the need for a replacement back.
[HD7 General] yly3:
Ok

Apparently I have a strange issue. It seems my phone lasts longer when is online (most of the time HSDPA) with mail syncing every 15 minutes and a couple of other live tiles than just standing on offline standby (no internet just reception) doing nothing !

It happened twice already and while I am somehow happy since live tiles is one of the reasons I got this phone it is also strange to say the least. Anyone having similar experiences ?

Currently somewhere around 60% after 10 hours of constant syncing , 30 minutes of music through loudspeaker , some messaging and I think 20-30 minutes of talking.

EDIT: And about Mugen .. they were able to stick a 1800 mAh in a Mozart with ORIGINAL CASE but they couldn't built one for the HD7. Utterly disappointment !

http://www.youtube.com/watch?v=ae5L4ccdIjc :(
[HD7 General] buzzhoodriver:
cheaper/better 1300mAh battery for hd7

Seidioonline.com also has a 1300mAh battery for the hd7.

I have used their batteries before, and they are very nice.

Hope this helps, enjoy!
[HD7 General] pNoyr3D:
Got my HD7 a few days ago & battery life has been terrible so far.

I just took it off the charger around 1PM & now at 3PM it's half way gone. Most likely because I was playing youtube videos & reading news, playing games but still, the battery life is horrible.

I have 3G turned off, Wi-Fi off & I turn it on when I need it, brightness medium (low I can't see ****), mail pushing when I get an email (one account), location off, feedback off.

What's going on?! Does the battery get better over time?!

If it stays like this, I am definitely going to get a Venue Pro, I love the HD7, its awesome but the battery life is just sooo bad!

** That 1800mAh battery would be awesome for the HD7! Hope hope hope
[HD7 General] chr5s11:
I really don't know what you do with your devices. I get through a day without any problems with my HD7. Battery life can always be better (that was the reason I pre-ordered a Mugen 1300mAh battery).

I get push contacts, mails and calendar via exchange on my device. My calls last around 40 minutes a day. I write around 40 text messages and mails per day and surf occasionally or play a game for a few minutes. Even 45 minutes of livestream internet radio is possible.

And I have most things turned on: data, general location, Zune, XBox Live are always on. Display brightness is set to auto.

The only time my battery died really fast was while playing The Harvest. This game seems to draw the battery life like crazy.
[HD7 General] nrfitchett4:
so wait, playing games kills the battery???

I didn't know that.....
[HD7 General] HTC1111:
Thank you good sir/madam

Im waking up to a dead phone every morning (late too now!)

but ill admit i have dropped the phone once or twice so ill put it down to that

but right now this is the worst battery ive ever had
[HD7 General] HTC1111:
i dont see any cases for the HTC HD7 on their site though?#

**ignore i see that the case for the HD2 fits it***
[HD7 General] frankd14321:
Better than anything I could get on the HD2... Normally the HD2 would barley get me through my workday 6am-3pm. But this one goes all day until I go to sleep. That is with very heavy usage.
[HD7 General] tfn:
I dont know why people have such bad battery life with the HD 7, as for me no problems lasts me from 7am to 11pm with heavy usage and Yeah I charge every night regardless if battery is left or not.

am used to the nightly charges having come from android and am happy with the Hd 7 as well..

People should realise all new smart phones wont give you more than a days battery unless you stop all sync and just use it like a plain old phone only for calling

wish you guys luck
[HD7 General] pNoyr3D:
lol bro come on, its like 10 mins. of ****ing reversi lmfao, that ain't ****.
[HD7 General] digime:
It is a disappointment but they say 1300 mAh is the physical limit for a battery the size of the HD7.

Beware anyone selling anything bigger without a replacement back!
[neoTouch S200 General] bevoc:
i currently own 3 units of s200 and have flashed them with cooked roms. however i have discovered a very disturbing fact about almost all the ccoked roms here - the battery driver is screwed up. i ended up changing 2 of the 3 phones battery because it only charges till 55% and 74% respectively, the 3rd phone charges to 95% and is stuck there

2 of the devices came from a same build september 2009 and the third phone is from jan 2010( i guess because it only says on the service receipt).

am i the only one who is experiencing this or there are more of you who had been infected by this bug?

i finally flashed all three phones with 3.03c official for malaysia/singapore

one more thing i noticed, all the roms effected were using somekind of tsowens taskbar icon as well as using non acer dialer.
[neoTouch S200 General] brainmaster:
Which Custom ROM did you used?
[neoTouch S200 General] bevoc:
used a couple of kubino's

arto's latest

one of yours. (if i remembered correctly... i have to check my download folder)

additional info, the battery will get stuck on the last maximum charge before flashing... lets just say i have 55% batt and i flashed a custom rom... after flash, the battery will not charge more than that.

(it is safe to say that you must flash the phone in 100% batt... my bad, i flashed as soon as the charge goes over 50%... pardon my obsessive flashing disorder)

i even have left the phones connected to the charger overnight and in the morning it is still displaying the same level of charge (+ over heating = almost dead battery = buying 2 mugen 1500mAh's)... at first i thought it was a minor battery update lag bug, but the phones will die within 5 to 6 hours. sometimes they will be switched off for no apparent reason

i seriously want a 6.5.x rom running on all 3 devices because of the touch friendliness but the fact that it gives me battery errors turns me off.

just hope i can use custom roms like i used to on my previous htc devices.
[neoTouch S200 General] brainmaster:
Well your battery is broken.

I have already flashed with only 30 % of battery and nothing happened. Have also flashed my Phone over 200 Times in the last 6 months, in the last 3 days over 50 times - and the battery is still functioning without any problems.

On my Sencity ROM it holds for 2 days without loading.
[neoTouch S200 General] bevoc:
thanx for feedback

i think i'll experiment on a few more roms. as far as my devices go, the problem was rom specific where flashing the stock rom eliminated the issue.
[neoTouch S200 General] sinocreate:
In my opinion, it is the issue of your battery, not the driver. If you use the original battery, you will find it works fine! The high capacity battery maybe need the special charger. Maybe just because the phone can not recongnize the battery's capacity.
[neoTouch S200 General] sinocreate:
By the way, I found that the battery does not work well with the new style roms. The battery always exhausts faster than the old style rom. For instance, the rom 23140 exhausts battery faster than rom 21057. My battery can stand by for neary 4 days with rom 21057, more than 3 days with rom 21895 or 219xx. But it can only stand by for about 2days with rom 23140 or 28xxx.
[neoTouch S200 General] bevoc:
well the drivers are just ****ty

i searched thru the forums to find out what is missing... and i find then post that says new roms = new base drivers = recalibrate battery

guess what, i recalibrated my battery even the "broken" ones. now all are working perfectly.

the catch

1. recalibrate all batteries

2. delete any battery icons / taskbar enhancement (can be reinstalled after all this)

3. use any regedit find string "state" without the quotes. find "battery", and change all values to 0

4. charge batteries without turning on device, wait till light is green.

5. turn on device, make sure battery % is showing 100%

6. take off batteries, wait 10 seconds, reinsert battery

7. push vol+ and vol- and press power button (hard reset device)

8. voila... perfect charging battery

tested for 1 day already. the broken battery were not broken after all, its the battery driver. it will not make changes or detect changes from the battery because its from a different base driver (even if the drivers were said to come from official 3.03c bla bla bla.

sorry mates.. its not my batteries. if just one device its understandable. its from 3 seperate devices (one is actually my girlfriend's) so i made a conclusion that even roms cooked from same base will actually have a flaw that can kill your devices......... slowly

bottom note - only flash your phone at 100% batt and reflash stock rom in between flashes.
[neoTouch S200 General] bevoc:
@ sinocreate

BTW the mugens were bought to replace 2 ORIGINAL batteries that had been damaged by the roms. do read the post carefully.

i think you are competent enough to understand my simple english.
[neoTouch S200 General] sinocreate:
In your step1:recalibrate all batteries. I just want to know how to recalibrate the battery?

I remember that the system can recalibrate the battery automatically from maybe WM6.1 or newer core...