Database Users

battery life

Anybody heard anything yet about what the battery life is supposed to be like with this phone? I know when I came from the TP to the hero my increase in battery life was like night and day. I am wondering since this has a fast processor and more memory if the battery life will be less than the hero. It just seems to be a waste to have a phone with these kind of features only to be crippled by low battery life. I hope it isn't.

ElAguila said:
Anybody heard anything yet about what the battery life is supposed to be like with this phone? I know when I came from the TP to the hero my increase in battery life was like night and day. I am wondering since this has a fast processor and more memory if the battery life will be less than the hero. It just seems to be a waste to have a phone with these kind of features only to be crippled by low battery life. I hope it isn't.
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It is more than likely be less than the hero, it has the same size battery mah wise as the hero but the voltage req will probally be slightly higher, so that will mean larger physical size. As far as run time, 4g sucks more juice than 3G, snapdragon at full speed 1ghz sucks more down than the 528 MHz in the hero and the bigger physical screen will also need more power than the smaller hero screen, they both use LCD as apposed to amoled which is amazingly good on your battery. They could and probaly should have went with amoled in my opinion.
I can only speculate but the stock 1500mah battery will probally see an 3600 mah extended battery from seidio about 3-4 months after release, about double the physical size of stock battery and extended back protruding 2-3 mm from the back of the current thickness. The evo is a rather thin phone comparatively so that shouldn't effect it. They usually run around 60-70 usd.
I will definitely be getting one if what I believe is correct, but the only potential problem will be the kickstand, I'm currious as how hay are going to overcome that obstacle. My guess is you will have to sacrifice it like some other phones like the palm pre extended battery that made you get rid of the touchstone functionality. They are good at molding compatible plastic moldings, and great at the batteries themselves, but not so good at engineering anything else into it.

i am going to have to agree with the post above...
same battery cap as the Hero, but with everything bigger and needing more power to function...guessing there will be a lot of people that will be complaining about the battery life (including me!).
I think HTC needs to reconsider this before they release this phone to the market. I am sure they can put 1800-2000mah battery in there.
since we are comparing HERO and EVO... and that we know they will have the same kind of screen...
The Hero's screen is very tough and scratch resistant. I have seen and tested the durability of the screen and I love it!!!
Will the EVO's screen have they same awesome tough screen??

Dan330 said:
since we are comparing HERO and EVO... and that we know they will have the same kind of screen...
The Hero's screen is very tough and scratch resistant. I have seen and tested the durability of the screen and I love it!!!
Will the EVO's screen have they same awesome tough screen??
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yes it should, the hd2 has the same screen, and it's basically a hardware clone of that phone, very nice and tough. HTC has done very wise in going with the tempered glass, costs more, but definitely worth the added cost.
I heard the moto droid has an even tougher screen with their "gorilla glass" technology. I haven't seen one first hand so I can't compare, but after 2 face first drops from waist height with no screen protector, the hero's screen is as nice as the day I got it. I'm hopeing I can say the same for the evo once I get it, but I'm fairly confident it will.

hd2 tough screen video
There's a video out there somewhere of a guy hammering his hd2 screen with a key and not a scratch.
hd2 extended battery actually gave it the kick stand. I imagine the an evo extended battery will have one too.
I wonder if it will stand up on its own in the portrait orientation like my Mogul does (it has sort of a foot). Doesn't look like it from the pictures.

Manicmobileaddict said:
There's a video out there somewhere of a guy hammering his hd2 screen with a key and not a scratch.
hd2 extended battery actually gave it the kick stand. I imagine the an evo extended battery will have one too.
I wonder if it will stand up on its own in the portrait orientation like my Mogul does (it has sort of a foot). Doesn't look like it from the pictures.
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No, but it does look like the kickstand might work with EVO in portrait or landscape orientation. We won't know for sure until we can get our hands on it.

Hero Battery life is crap.
On my Hero, I get about 3/4 a day's worth of battery... but that might because I am running rooted 2.1 on the device that is not optimized for my phone, but as long as the phone can get me through one full day on the device, I will be fine.

Manicmobileaddict said:
There's a video out there somewhere of a guy hammering his hd2 screen with a key and not a scratch.
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Lol, people act amazed every time they see this done to a glass screen, and it makes me wonder just what they're being taught in science class these days. Glass is harder than the metal your keys are made from so of course it won't scratch. Same thing with razor blades and pretty much any other metal they throw it at in videos like these. What they don't show you is that sand will still tear your screen a new arsehole. Unless you live somewhere absolutely devoid of sand, this phone is still going to need a protector or a slip case.

I've never had problems with my screen getting scratched without a protector. Back on topic though I'm a little worried about the evo's battery life. I get great life on my hero but with all the added goodies I know the evo will get far less. Fortunately I'm rarely without a power source so unless it's totally horrible I'll deal with it.

Evo without 4G?
I live in an area without WiMax (for now), so do you guys think that if I don't have the WiMax radio on it will get at least a days worth of battery?

I read the Touch Pro 2 Battery will work on the EVO anyone know if that's true? I don't remember if numbers of it but I am wanting to say 1400 and i have an extra one that's less..

Rose4uKY said:
I read the Touch Pro 2 Battery will work on the EVO anyone know if that's true? I don't remember if numbers of it but I am wanting to say 1400 and i have an extra one that's less..
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The EVO uses a RHOD160 1500mAH battery... The battery commonly found in the TP2, I believe.
http://forum.xda-developers.com/showthread.php?t=677678

ihakr said:
I live in an area without WiMax (for now), so do you guys think that if I don't have the WiMax radio on it will get at least a days worth of battery?
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Not having WiMax or having WiMax will have no significant impact on battery life at all. I have no idea what your phone use habits are so it would be hard to say if you'd get a day out of it or not.

Thanks, So even my generic extra would work then?
keatre said:
The EVO uses a RHOD160 1500mAH battery... The battery commonly found in the TP2, I believe.
http://forum.xda-developers.com/showthread.php?t=677678
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Sebrina said:
Not having WiMax or having WiMax will have no significant impact on battery life at all. I have no idea what your phone use habits are so it would be hard to say if you'd get a day out of it or not.
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Technically speaking, if you were to turn the WiMAX antennas off, you would increase battery life. The Evo offers the ability to connect to 4G and if not, then 3G... OR... Just 3G, thus turning the WiMAX antennas off.
Will this increase it significantly? Can't really tell you much yet.
Rose4uKY said:
Thanks, So even my generic extra would work then?
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As long as your extra is a RHOD160 1500 mAh, you should be fine -- no worries.

keatre said:
Technically speaking, if you were to turn the WiMAX antennas off, you would increase battery life. The Evo offers the ability to connect to 4G and if not, then 3G... OR... Just 3G, thus turning the WiMAX antennas off.
Will this increase it significantly? Can't really tell you much yet.
As long as your extra is a RHOD160 1500 mAh, you should be fine -- no worries.
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Click to collapse
If you turned your 4G radio off your 3G radio would take over and I don't see a significant improvement there, now if you turned all data radios off you would definitely see an improvement but at what cost? You'd basically be carrying around a phone with no data capabilities.

I am not sure about the battery. I thought the touch pro 2 battery was the one that works in the hero. It would be surprising to find the hero battery working in the EVO although I would not complain.

Sebrina said:
If you turned your 4G radio off your 3G radio would take over and I don't see a significant improvement there, now if you turned all data radios off you would definitely see an improvement but at what cost? You'd basically be carrying around a phone with no data capabilities.
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you can specify what type of connection in the stock image of sprint android devices. You can tell it 1x or evdo or auto, I would venture to guess they will have a similar option to disable 4g in areas it's not available in.

johnsongrantr said:
you can specify what type of connection in the stock image of sprint android devices. You can tell it 1x or evdo or auto, I would venture to guess they will have a similar option to disable 4g in areas it's not available in.
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I think that turning the 4g radio off in areas with no 4g rather then leave it on would help battery life, thus it wouldn't be looking for a 4g network all the time

My one that came with the phone says RHOD160 1500 MAH . The generic one says 1400 mAh 3.7 V. And under the ID number it says HTC with numbers and letters. So will 1400 not work? Reason I am asking is one extra battery is all I will really need. I have this cradle that charges the extra battery now while my Touch Pro 2 is in the cradle/ But my friend is getting the same phone switching from a BB Tour. I said oh I don't need 2 extra batteries I'll give you one of mine which of course was going to be the generic one. But then I thought about buying back my phone to Sprint when I get the EVO which is 82 bucks. Almost as much as selling it for a 100.. So I don't know what to do yet..
As long as your extra is a RHOD160 1500 mAh, you should be fine -- no worries.[/QUOTE]

Battery life is GREAT, until you use it?!

This is not another thread about battery life obsession. It's more about a curiosity.
I have my Evo tuned so that it has great battery life on standby. When I use it for anything--SMS, data, local apps--the battery drains very fast.
I know that data, CPU, and display are the major consumers, but...
I have a Nexus One, with also a 1Ghz Snapdragon, and almost exactly the same loaded apps. Same screen resolution, both on 2.2. Both have 1500mAh battery. The only difference is the display technology and radio (GSM/EDGE/HSPA vs. CDMA/1xRTT/EVDO).
When used equally, the N1's battery does not drain nearly as fast as the Evo. How come? I know AMOLED is supposed be more power efficient, but by that much? I know CDMA can be less efficient, but again, by that much?
- - -
Duh! Edited from Hummingbird to Snapdragon (got confused-I just picked up an Epic which has Hummingbird). Thanks for correcting.

They both use Snapdragon, Hummingbird is Samsungs CPU codename, it's based on the same architecture but uses a smaller process.
What software are you running?

Same exact problem as OP...this baffles me.
Sent from my PC36100 using XDA App

Systemfraud said:
Same exact problem as OP...this baffles me.
Sent from my PC36100 using XDA App
Click to expand...
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Is it something new, or has this always been happening?
Was it after the new update or kernel WHATEVER, that you flashed?

If you’re running the stock kernel, do you think the fact that the screen is physically bigger may have something to do with the difference? I’ve always accounted the difference in the battery drain speed (between screen on and screen off) to the fact that most of us are running tweaked kernels that are overclocked when the screen on (with 5 point multi-touch, etc), and underclocked with the screen off.

The problem with battery life issues is that most of the time it can be just a perception and not scientific evidence at all.
Personally, I had an iPhone 3GS prior to getting an EVO and I would say the same exact thing happened with my iPhone. Especially when I was playing games. It doesn't seem to happen with my EVO.
Even seemingly silly things like the Battery Icon can help with the perception that battery life on the phone is bad. Since it only has 4 levels, it kind of tricks your mind into thinking your battery is draining really fast. Try flashing this.
Scientifically, The difference in battery life running the same exact apps under the same exact conditions would be almost negligible between an Evo and a Nexus one. You could even test them side by side and see for yourself.
Also, some facts:
- CDMA 3G is LESS power hungry than HSDPA when actually using it. Heck, EV-DO even uses less power than CDMA 2G(1xRTT)! Wi-Fi uses even less, so use it whenever you can.
- There's a huge misconception that AMOLED Screens use a lot less battery than regular LCDs, but in fact, that's only when the screen is showing LOTS of black color. During a web browser session with lots of white webpage viewing, AMOLED has no Power consumption advantage over LCD.

Signal is a HUGE contributor. I get about 12 hours out of my battery 3-4 out of 5 bars. I went to the sand dunes and had 5 bars and my phone lasted 28 hours.

zeuzinn said:
Also, some facts:
- CDMA 3G is LESS power hungry than HSDPA when actually using it. Heck, EV-DO even uses less power than CDMA 2G(1xRTT)! Wi-Fi uses even less, so use it whenever you can.
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there are some variables here - my router at home sucks, so I actually get better signal (and battery) with 3g and not wifi unless I'm in the same room as the router. Like the guy above me said, signal plays a huge part in it.
btw, were you really one of the few people that had an n-gage?

fachadick said:
btw, were you really one of the few people that had an n-gage?
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hahaha yeah. Still have it shoved in my closet, actually. I LOVED it.

zeuzinn said:
hahaha yeah. Still have it shoved in my closet, actually. I LOVED it.
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Man that's a lot of phones...

Plancy said:
Is it something new, or has this always been happening?
Was it after the new update or kernel WHATEVER, that you flashed?
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Click to collapse
Seems like it's always been problem for me..
Sent from my PC36100 using XDA App

Plancy said:
What software are you running?
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When I run Handcent, N1 uses about 20% less battery over ~400 messages. Browsing sees similar results. No exotic apps and I keep close eye of what is running/syncing in the background.
Plancy said:
Is it something new, or has this always been happening?
Was it after the new update or kernel WHATEVER, that you flashed?
Click to expand...
Click to collapse
I too, have seen this from day one, running all stock ROMs.
zeuzinn said:
The problem with battery life issues is that most of the time it can be just a perception and not scientific evidence at all.
Even seemingly silly things like the Battery Icon can help with the perception that battery life on the phone is bad. Since it only has 4 levels, it kind of tricks your mind into thinking your battery is draining really fast.
Scientifically, The difference in battery life running the same exact apps under the same exact conditions would be almost negligible between an Evo and a Nexus one. You could even test them side by side and see for yourself.
Also, some facts:
- CDMA 3G is LESS power hungry than HSDPA when actually using it. Heck, EV-DO even uses less power than CDMA 2G(1xRTT)! Wi-Fi uses even less, so use it whenever you can.
- There's a huge misconception that AMOLED Screens use a lot less battery than regular LCDs, but in fact, that's only when the screen is showing LOTS of black color. During a web browser session with lots of white webpage viewing, AMOLED has no Power consumption advantage over LCD.
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On both phones, I have a % battery gauge. I use both phones in good coverage area and have observed them over weeks of use. I would use one phone for the day, do the exact same thing, use the other phone the next, and consistently see the N1 having 20-30% more battery at the end of the day. I'm thinking of loading "current widget" to see the drain rate between the two phones.
On the subject of radios: I have seen manufatures list longer battery life for EDGE vs. HSPA and the same for 1x over EVDO. Also I [think] usually see longer standby times for a comparable GSM/UTMS phone over CDMA (e.g., Touch Pro2 on GSM/UMTS vs. Touch Pro2 on CDMA).
When one says that EV is less power hungry than 1x, are we talking about a time-use comparison or efficiency? Example: 1Mb download, 1x takes, say, 1 minute, while EV takes 10 seconds. Yes, for that download, EV took less power. But if one were to have 1x & EV both running for one minute, which takes more power? I ask because I remember seeing EV transmitting at higher power than 1x.

Epic vs Evo battery differences

Epic vs Evo battery differences
Something I noticed while having an Epic and Evo under one roof was that although they both last about the same length on a charge, the components using the juice vary greatly. Here’s is a breakdown of the most power hungry items arranged from most power usage to least:
Evo:
• Cell Standby (most power usage)
• Phone Idle
• WI-FI
• Android System
• Display
Epic:
• Display (most power usage)
• Cell standby
• Phone idle
• Android System
Initially I thought that the Epic’s AMOLED screen was WAY more power hungry than HTC’s LCD. But if that was the case I would expect the Evo to outlast the Epic on a charge which wasn't happening. Then it hit me. Samsung’s Hummingbird CPU/GPU is 45mn and is supposedly eating less power than the older 60mn Snapdragon processors. If true this could explain the reversal of the “Display” from being at the bottom to being at the top. I suspect the AMOLED does require more juice than HTC’s LCD but perhaps not as much more as I originally thought. What is likely going on is that the system components are less power hungry on the Epic but the screen is somewhat more power hungry. This could explain why Evo’s and their custom undervolted kernels see a big improvement in battery life, simply because the underlying cpu/gpu is using a larger percentage of the battery’s life.
The other noteworthy item, Wi-Fi was always in the middle of the list on the Evo but doesn’t even show up on the Epic even though Wi-Fi is always enabled. I have heard the Epic uses a newer low power Wi-Fi chip and if that’s the case it seems to have paid off.
My Conclusions:
1. If you want more battery life on the Epic, turn off auto brightness and set the brightness quite low. Set applications to “dark” theme’s when available because black pixels draw no power on the amoled screen.
2. If you want more battery life on the Evo, you’ll want to look into rooting & custom undervolting kernels (and you’re in the wrong forum…haha).
I welcome your comments and to know if you draw different conclusions. Thanks!

Well I've heard the samoled takes less power than the lcd but idk. Just putting some info down.
Sent from my SPH-D700 using XDA App

rocket321 said:
Epic vs Evo battery differences
My Conclusions:
1. If you want more battery life on the Epic, turn off auto brightness and set the brightness quite low. Set applications to “dark” theme’s when available because black pixels draw no power on the amoled screen.
2. If you want more battery life on the Evo, you’ll want to look into rooting & custom undervolting kernels (and you’re in the wrong forum…haha).
I welcome your comments and to know if you draw different conclusions. Thanks!
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Click to collapse
1. If you want more battery life on the EPIC, get a custom ROM (viperrom) running 2.2. Helped me get from 8-10h with low use to 16+h with moderate/heavy use.

Yeah stock epic battery is horrible.
However, on dk28 its much much better battery life
Anyone else notice that the screen always takes up about 90% of the power? Lol but that doesn't mean it won't last long
I just made a thread about how I watched two full length movies on the highest brightness and I'm at 13hrs right now still kickin lol
Sent from my SPH-D700 using XDA App

deano0714 said:
Well I've heard the samoled takes less power than the lcd but idk. Just putting some info down.
Sent from my SPH-D700 using XDA App
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I have said both of this things on other threads today, but they bear repeating here.
First of all, SAMOLED uses more power than LCD in most cases. It uses less power than regular AMOLED. If you go back and read Samsung's press releases, they say that fact. They don't claim better battery life than LCD, and you know they would be the first to say it if it were true.
narn17 said:
1. If you want more battery life on the EPIC, get a custom ROM (viperrom) running 2.2. Helped me get from 8-10h with low use to 16+h with moderate/heavy use.
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The Galaxy S devices have software issues that cause some of them to use their antennas constantly. With this issue, the battery drains in 10 hours, at best. You should be getting at least 20 hours out of your battery with moderate use. If you are experiencing these issues, chances are it will happen on all ROMs (as it did with me). I know two other people who have Galaxy S devices and they both have this issue. Mine started getting 20 to 30 hours when I switch to DK28 (and my GPS broke, not to mention occasional FCs and a broken WiFi tether), so I am betting this will get fixed with the 2.2 update. The above quote further supports this theory.
BTW, the whole "recalibrating the battery" thing does not help and can be harmful to your battery. While I am dispelling myths, clearing a cache or resetting a partition more than once is a waste of time. If you ever hear someone say "clear system 3x", they are just being superstitious. Maybe they have accidentally hit "no" instead of "yes" when they cleared it in the past, and ever since then they decided to do it 3 times.
One more myth! Most benchmarking tools for Android are crap. Quadrant has been shown to give highly inaccurate and easily manipulated scores. I used to think Linpack was good, but I have heard of G2's getting like 33 MFlops, which is ridiculous and makes me think it is bad as well. Any benchmark that takes into account FPS is only accurate if you remove the FPS limiter on your phone. All phones that I know of are locked to a max of 55-60 FPS (Epic 4G is locked to 55.6). What that means, is if you put a 5ghz quad core CPU with a GTX 580 in your phone, you would still get 55.6 FPS with those benchmarks (such as Neocore).
BenchmarkPi seems to be pretty accurate for CPU. An3DBench seems to be OK for OpenGL and 3D benchmarks since they tend to tax the GPU so much that it doesnt ever hit its limiter.

A Complaint Letter to HTC - Battery Life

I just submitted the following letter to HTC's Customer Service:
"Phone = Telus Desire HD. I've been using my new Desire HD for awhile now but have come to conclude it has one major design flaw. If I don't cripple half of its options/features before leaving the house the battery has trouble making it through the day. Once half the features are crippled what's the point of having a smart phone? Please tell me HTC is in the process of designing/producing an upgraded battery? I have no issues with spending additional money to utilize my device to it's full potential, although I am alarmed R&D did not resolve this before launch. HTC did not make the battery cover replaceable nor did they add a little depth to the phone to allow a larger battery. Unless HTC can refine their battery design are all their current Desire HD customers forced to use their phone with reserve? It saddens me that I can't even recommend this phone to a friend because of the atroshish battery life. Lastly when I purchased this phone I did so because of HTC's reputation. I neglected to read current reviews prior to my purchase knowing that it was a flagship phone for HTC. After purchasing it I started browsing reviews and found only one common theme that never deviated. The Desire HD has a dismal battery life. What if anything does HTC plan to do about this??"
Yes guys I know that recent rom development has done leaps and bounds to improve battery life, and there are plenty of ways to extend it but the bottom line is HTC released this and knows that everyone has the same issue. They should come up with some course of resolve. If they found a way to refine the battery vastly extending its life this phone would be untouchable. I hope more users write to HTC and complain. It only takes minutes but as customers our voices should be heard.

JohnnyRebel said:
I just submitted the following letter to HTC's Customer Service:
"Phone = Telus Desire HD. I've been using my new Desire HD for awhile now but have come to conclude it has one major design flaw. If I don't cripple half of its options/features before leaving the house the battery has trouble making it through the day. Once half the features are crippled what's the point of having a smart phone? Please tell me HTC is in the process of designing/producing an upgraded battery? I have no issues with spending additional money to utilize my device to it's full potential, although I am alarmed R&D did not resolve this before launch. HTC did not make the battery cover replaceable nor did they add a little depth to the phone to allow a larger battery. Unless HTC can refine their battery design are all their current Desire HD customers forced to use their phone with reserve? It saddens me that I can't even recommend this phone to a friend because of the atroshish battery life. Lastly when I purchased this phone I did so because of HTC's reputation. I neglected to read current reviews prior to my purchase knowing that it was a flagship phone for HTC. After purchasing it I started browsing reviews and found only one common theme that never deviated. The Desire HD has a dismal battery life. What if anything does HTC plan to do about this??"
Yes guys I know that recent rom development has done leaps and bounds to improve battery life, and there are plenty of ways to extend it but the bottom line is HTC released this and knows that everyone has the same issue. They should come up with some course of resolve. If they found a way to refine the battery vastly extending its life this phone would be untouchable. I hope more users write to HTC and complain. It only takes minutes but as customers our voices should be heard.
Click to expand...
Click to collapse
I will do the same HTC India as well

Great News
Sheldon.mathews said:
I will do the same HTC India as well
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Glad to hear it, I hope more follow suit. The way I see it is the XDA forums in the Desire HD section gets an astonishing number of hits. If even 1 out of every 500 people that just read the Desire HD threads write a complaint in regards to a battery it will have a swift impact on a battery upgrade option for the desire hd.

Unfortunately I think this is the HTC policy. They never build a perfect phone; think about the HTC Desire and the Nexus One: they're legendary devices but they had multitouch (and weak reception on N1) issues. The HTC HD2 probably was the best phone they ever made, but it had a tiny 1320 mAh battery and Windows Mobile 6.5. Other phones had issues like camera, WiFi performances, etc... And now our DHD: no S-Amoled ( = more energy required to keep the huge screen on), a low capacity battery and a sub-par GPS.
I think this is their strategy to make sure ppl will keep buying their new phones. You get it, you recognize it has plenty of great features and most things work just as expected (unlike other manufacturer like Samsung, Motorola), you get a lot of software updates... But you have one or more issues which will let you consider to upgrade to their new models.
Just my 2¢... I'd love if HTC should announce a 1500/1600 mAh extended battery tho

Scarey to think about eh?
Drakknar said:
Unfortunately I think this is the HTC policy. They never build a perfect phone; think about the HTC Desire and the Nexus One: they're legendary devices but they had multitouch (and weak reception on N1) issues. The HTC HD2 probably was the best phone they ever made, but it had a tiny 1320 mAh battery and Windows Mobile 6.5. Other phones had issues like camera, WiFi performances, etc... And now our DHD: no S-Amoled ( = more energy required to keep the huge screen on), a low capacity battery and a sub-par GPS.
I think this is their strategy to make sure ppl will keep buying their new phones. You get it, you recognize it has plenty of great features and most things work just as expected (unlike other manufacturer like Samsung, Motorola), you get a lot of software updates... But you have one or more issues which will let you consider to upgrade to their new models.
Just my 2¢... I'd love if HTC should announce a 1500/1600 mAh extended battery tho
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Never quite looked at it that way but maybe it is a HTC conspiracy. Give them just enough to keep them coming back. Regardless I hope you voice you concern to HTC too and maybe we'll see that 1500/1600 mAh battery in the near future.

You won't see it for a couple of reasons.
The Desire hd is near end if life in terms of being a flagship, and the technology simply doesn't exist to increase battery cell density further. The only way would be a physically larger battery which is impossible given the design of the dhd.
Sent from my Desire HD pocket rocket.

I don't know why people complain about the battery life. It is fine for me. And it is a smart phone, what are you going to expect, 2 days of battery???
I easily get a day out of it without any problems. Display is 20%, Wifi on, 3g on, sync on... I say the screen is on for around 1 to 1 and a half hours.

No offense, but I seriously hope you wrong!
dr.m0x said:
You won't see it for a couple of reasons.
The Desire hd is near end if life in terms of being a flagship, and the technology simply doesn't exist to increase battery cell density further. The only way would be a physically larger battery which is impossible given the design of the dhd.
Sent from my Desire HD pocket rocket.
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There is no doubt a new flag ship is just around the corner. And yes I've heard the density argument several times, but I'm praying they still have a trick or two up their sleeves that they have yet to reveal. ;0) Besides, it can never hurt to take a shot even when the odds look overwhelming. But hey who knows, when they respond to me they might just admit I'm SOL. We'll see what the future reveals.

Glad you're happy.
springy said:
I don't know why people complain about the battery life. It is fine for me. And it is a smart phone, what are you going to expect, 2 days of battery???
I easily get a day out of it without any problems. Display is 20%, Wifi on, 3g on, sync on... I say the screen is on for around 1 to 1 and a half hours.
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A day and a half and I'd be ecstatic. I get a full day too, but refrain from allot of the everyday tasks I'd also like to accomplish. I spend 14-16hrs away from home 5-6days a week. Normally by the time I return home my phone is warning me about 15% battery. Yes I could charge it while in my car, yes I could swap batteries (but I HATE the battery cover), and finally yes I could plug it into an outlet for awhile (abandoning my contact with 99.9% of the world) . To me 1230mAh seems exceptionally low for a smart phone doesn't it? Especially is you design one with such a power hungry screen? There are tons of things I do love about this phone and I mean tons. But in a year if this isn't resolved I'll remember it as the awesome phone that ate batteries. Lastly though all I can say is thank god for all the brilliant developers who are coming up with commendable ways to stretch our battery life further. And shame on HTC for just standing by on the sidelines.

The thing is, I don't think anything can really be done to make a battey big enough. Yes you can buy some 1300mAH - 1600mAH but they tend to be worse then the 1230mAH we have in the DHD. The software can be optimised but the main thing is the screen. To be honest, the DHD had a design flaw, a slot that was not big enough to house a battery that can contain more than 1230mAH. The only way we can go forward is hope that new battery technology comes out soon, but this is around 3-5 years away from current experiments technology from what I have seen...
But also, other phones are in the same situations. All battery of under 2000mAH will be terrible. Phones if you want it to last would need at least 10000mAH in my opinion, and again we are around 3-5 years away from this happening at the earliest for a credible solution..

Hate to say it but complaining will be fruitless as htc already have your money.
Sent from my Desire HD pocket rocket.

Yes, there is no point complaining because they have no obligation to comply. Even if they really have the technology to provide a better battery, it simply not a viable business strategy to design a new battery for a phone that soon to be replace by next generation of androids. Its not just HTC, every business is like this, they provide a good product, but always reserve better for the next product cycle. Thats why most updated technology usually takes 5-10years to actually reach consumer market.

I don't think the battery of the HTC Desire HD is so bad, I easy get about 1 day and 12 hours with all options on, ofcourse I don't use battery comsuming apps like twitter, I mean if you are so active with a phone then most smartphones will barely make the day.
I think we should be happy that the battery is removeable, just look at the iPhone, the battery is not removeable and to extend the battery life they need use a external battery, no thanks then I rather carry one spare battery with me for just in case I would need it.

http://www.telegraph.co.uk/technolo...nes-could-run-for-months-between-charges.html
That is the technology I head about 6 months ago... now widely reported... this is what will solve our battery problem... Having 1500mAH won't do anything about from extend the life for a few hours.
Too bad we are 3-5 years for it to get anywhere near market consumption

omg
really the battery in the htc desire hd is hopeless....

Well the main power consuming piece of hardware inside our phone is the screen.
Qualcomm have invented a new type of display called the mirasol display, and it uses a lot less power than the traditional LCD. Since HTC and Qualcomm are partners we could be seeing this type of display in future HTC devices.
Source: http://www.androidpolice.com/2011/0...-screen-technology-teased-ahead-of-ces-demos/

JohnnyRebel said:
I have no issues with spending additional money to utilize my device to it's full potential...
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This obviously doesn't solve the root cause, but if you're willing to spend around 50 USD google for something like "PB-5000 Phone Charger", it's 5000mAh...

my Desire HD has the exact same issue, with only 10-12 hrs maximum with half the features off. i am seriously considering buying the HTC Desire, just for the sake of the battery.
there is a very easy and acceptable solution for this problem. can't they make a charging case or a charging cover or a case holding the 2nd battery being in action for the HTC Desire HD? they have done it for the iPhone. i have mailed so many companies with this idea (including mugen and HTC), however no one replied.
I also have a question: how much does LeeDroid improve the battery issue??? as in how many more hrs does it give me?
Thanks, Best Regards, Android Asim

Trouble? Not so much.....
What kind of services are you running?
I listen to music to and from work, wifi is on all day at work + listen to music and watch a video or two. LiveProfile is on all day as well. I normally don't use Livewallpapers. A charge will last all day for me with this typical usage. Now, If I start rocking "Dungeon Hunter" or some other game or am using GPS then battery goes way down and I have to hit the trickle charge at work ( USB to Computer )
I normally charge overnight.
It is a Smartphone with a huge screen and chip, it's not a MOTO RAZR.

dhiral.v said:
Well the main power consuming piece of hardware inside our phone is the screen.
Qualcomm have invented a new type of display called the mirasol display, and it uses a lot less power than the traditional LCD. Since HTC and Qualcomm are partners we could be seeing this type of display in future HTC devices.
Source: http://www.androidpolice.com/2011/0...-screen-technology-teased-ahead-of-ces-demos/
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Click to collapse
Sounds pretty good. I like my DHD and all its awesome functions but having to be so careful about battery consumption really is a pain in the ***. The phone's screen is pretty darn nice to look at, but I have it set to 25% brightness just to keep consumption down a bit. Seriously, using the DHD's screen for 4 hours the battery is almost empty.
I'd really have no problem settling with a 'less pretty' screen if it would mean I could use my phone for more than 4 hours a day.
chumbagen said:
What kind of services are you running?
I listen to music to and from work, wifi is on all day at work + listen to music and watch a video or two. LiveProfile is on all day as well. I normally don't use Livewallpapers. A charge will last all day for me with this typical usage. Now, If I start rocking "Dungeon Hunter" or some other game or am using GPS then battery goes way down and I have to hit the trickle charge at work ( USB to Computer )
I normally charge overnight.
It is a Smartphone with a huge screen and chip, it's not a MOTO RAZR.
Click to expand...
Click to collapse
My typical use during a day:
-Unplug it at around 8:00
-Making calls for about 30 minutes
-Sending ~25 SMS
-Internet for about 2 hours (1 hour wifi and 1 hour 3G/H)
-Listening to music for about 1 hour
-Checking my awesome team in RunFootball ~5 times a day
-Plug it in at around 22:00
At 22:00, the battery is usually down to below 15%. I have GPS, BT, wifi and 3G off unless actively using them. With my screen brightness set at a low 25% the maximum screen time I can get out off my DHD is 4 hours. There are no rogue apps running in the background.
Honestly, a phone with this type of power consumption needs atleast an 1800mAh battery to last me through a day without me worrying about it.

Did anyone manage to have 40hrs++ battery lifetime?

Dear People,
I am posting this out of big ENVY from my friend's story of his iPh*** 4 battery life with 40hrs ++ of usage (social network on, moderate usage, data always on, bla bla bla) and he still got 20% left of his battery!!!
I was just wondering did anyone managed to experience 40hrs ++ of battery lifetime? My best achievement with my nexus s battery life is
1 day 3 hrs with
MIUI Rom JB 2.8.17
Marmite Kernel 4.3
SmartassV2/deadline
100/1000
Automatic brightness on
Could we EVER achieved 40hrs ++ battery lifetime??? Since Iph*** 4 has practically same specs with Nexus S
It has 1Ghz procs, 512mb ram, 1500mah battery, bla bla bla
Any comments?

A very big advantage of the iphone is the very dim (to my opinion) screen backlight. If you change that to default 1 min instead of 20 on a custom rom, and then change your auto brightness values as well to lower ones your lifetime should increase alot. At least mine does. Also I use Llama to close mobile data after 5 minutes of sleep and then instantly turn it on on unlock. Anyway..we will never be able to win versus apple at some things. They have one operating system made for one device. We got one operating system for like..1 milion devices? That's the same story of console vs pc games.

andrei.voinea93 said:
A very big advantage of the iphone is the very dim (to my opinion) screen backlight. If you change that to default 1 min instead of 20 on a custom rom, and then change your auto brightness values as well to lower ones your lifetime should increase alot. At least mine does. Also I use Llama to close mobile data after 5 minutes of sleep and then instantly turn it on on unlock. Anyway..we will never be able to win versus apple at some things. They have one operating system made for one device. We got one operating system for like..1 milion devices? That's the same story of console vs pc games.
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Never used iOS devices before...So they have those kind of things hey..
I agree with you with the point that their OS was made for one device, while us is for millions
Thanks for the comment

I've been getting pretty excellent battery life lately, will put up a screen shot but got almost 52hrs battery life with wifi and 3g on until it got to about 15% with about 2h 24m screen on time, although this was pretty light usage to be fair.
Using codename 3.3.2 with standard kernal, I turned NFC off and this seemed to help massively although I've also heard the new Maps app has solved some battery drain so not sure which has contributed the most.

cptblubear said:
I've been getting pretty excellent battery life lately, will put up a screen shot but got almost 52hrs battery life with wifi and 3g on until it got to about 15% with about 2h 24m screen on time, although this was pretty light usage to be fair.
Using codename 3.3.2 with standard kernal, I turned NFC off and this seemed to help massively although I've also heard the new Maps app has solved some battery drain so not sure which has contributed the most.
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52hrs?????? Cant wait for your screenshots man!

You may think the specs are the same, but the hw in the iPhone and power management is still superior. They get a push notification, even while the 3g radio is in idle and almost off (in which it saves more power). It's hard for Android to optimize the power management specially because of that many hardware variations, it's not only the CPU that counts.

madd0g said:
You may think the specs are the same, but the hw in the iPhone and power management is still superior. They get a push notification, even while the 3g radio is in idle and almost off (in which it saves more power). It's hard for Android to optimize the power management specially because of that many hardware variations, it's not only the CPU that counts.
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Click to collapse
Well, thats good to know, but since its the software differences (meaning coding and stuff), surely (i assume and hope) that we could also applied it (somehow) in our devices through tweaks, can we?

IMHO not much is possible since this is older hardware already and a question for how long will Google bother with it. It might be alot of work needed and you gain some insignificant amount of savings.
Would be nice to see some kind of power management tweaks in coming version of Android though.

well its halfly because android works differently and half way because of the hardware.
yes, the hardware is similar, but the nexus screen takes up more power, the processor is not very efficient, and nfc takes up power... also, the 3g radios are honestly HORRIBLE on the nexus s and that might have something to do with it.
but, the software side does make a major impact. iPhones do not multitask like android, which saves power on slower devices like the iphone 4. thats only half of it though, for instance, the iphone 4S has much worse battery life than the nexus s (by far). ROMs make a big difference also, I am very picky when choosing a ROM- if it doesnt have great battery life then I immediately replace it by another ROM that does.
I get on average about 16-20hours pretty consistantly if you are wondering, and I am OK with that as long as it makes it to the end of the day... I wake at 3:30 and normally it does. My advice is to experiment with different ROMs, I would suggest some, but I use an S 4G...

I don't really believe it. My friend has an iPhone and he uses it quit a bit and seems to have to keep it plugged in as much as I keep my phone. I think he said he usually gets about 8 hrs out of it. And the screen is pretty dull compared to mine so that might make a difference to
Sent from my Nexus S 4G using xda app-developers app

The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium

heccubusxda said:
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
Click to expand...
Click to collapse
Or an extended battery...
Sent from my Nexus S 4G using xda app-developers app

heccubusxda said:
The iPhone screen is a lot smaller too and that's a big tradeoff.
I always get a chuckle at the iHerd people I see on the bus holding their tiny screen 6 inches in front of their face so they can read it.
If battery life is really a concern get a couple of spare batteries and a charger.
Sent from my Crespo using xda premium
Click to expand...
Click to collapse
Thats a good point too, smaller screen

Use this as yours to shut him up apples wack i got this oc to 1400 on stock with air kernel 186
Sent from my Nexus S using xda premium

nucleor1989 said:
Use this as yours to shut him up apples wack i got this oc to 1400 on stock with air kernel 186
Sent from my Nexus S using xda premium
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Whoaaaah! What rom and settings? Awesome!
Sent from my SGH-T959V using xda app-developers app

Data was on all the time ? Ive got 33 hrs once but this is insane

I have achieved 50 hours on cna ... yes codename android but dang I forgot to take a screenshot of it I didn't have data on that time though
Sent from my Nexus S using xda premium

Lasting 40+ hours is easy if you don't use the phone much...
The screenshot was taken on a long weekend a while ago. I was busy during the weekend and didn't use my phone much apart from listening to music for no more than 2 hours.

Si_NZ said:
Lasting 40+ hours is easy if you don't use the phone much...
The screenshot was taken on a long weekend a while ago. I was busy during the weekend and didn't use my phone much apart from listening to music for no more than 2 hours.
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Thats true, but from the iphone their data was on all the time, mid moderate usage.
But, just like some people said, power managwment chip, the os, makes big differences
Sent from my SGH-T959V using xda app-developers app