Database Users

Battery Life

Just wondering what battery life people are getting from their N1, considering an N1 or Desire v buying another HD2 on contract but would prefer a better battery life than I got on the HD2,

Not totally related to the OP... I'm considering getting the Desire/N1 from AT&T or Verizon (if and when they get them) Using the current state-of-the-art technology in these new phones.... is it still the case that CDMA consumes more battery power than GSM?

You guys know that you can do a search right? anyway I've been on wifi all night with light usage. So far its been 12hrs and I'm at 65%.

ram130 said:
You guys know that you can do a search right? anyway I've been on wifi all night with light usage. So far its been 12hrs and I'm at 65%.
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Maybe I searched in the wrong places in the xda forum. I searched in the Imagio forum which is the only HTC world phone currently using CDMA & GSM, but there was nothing specific to the battery life of GSM vs CDMA in those threads. I also searched under the TP2. I know that the the CDMA N1 has yet to be released, so was looking for battery life information related to recent CDMA phones models which are also available in GSM... like the TP2. Maybe you found a CDMA vs GSM battery life thread that I missed, can you point me to it?

tamanaco said:
Maybe I searched in the wrong places in the xda forum. I searched in the Imagio forum which is the only HTC world phone currently using CDMA & GSM, but there was nothing specific to the battery life of GSM vs CDMA in those threads. I also searched under the TP2. I know that the the CDMA N1 has yet to be released, so was looking for battery life information related to recent CDMA phones models which are also available in GSM... like the TP2. Maybe you found a CDMA vs GSM battery life thread that I missed, can you point me to it?
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Nope didn't see one here. Just saying to do that first. As for the CDMA I suggest you search else where because no one gonna know an answer for CDMA vs GSM in an N1 thread. You can just wait til its released, the phone ain't gonna go anywhere you know, it will be available after a month of release too.

Getting approx 48 hrs with standard use (bit of surfing, email, txt's few calls bit of music on the way into work etc).
Decent 3G coverage at work and wifi at home, phone rarely has to hunt for signal.
Phone was charged last night and is showing 89% remaining - unplugged since ~ 7am thismorning.
Screen usually sits at the lowest brightness which is fine for indoor use.
I found a HUGE difference in battery life switching chargers. Originally used the supplied USB lead via a cheapy charger adapter thingy (how techincal! - it's the ones which allow you to plug in a USB lead and charge your phone)
Now switched to the charger which came with my bluetooth headset and that's helped no end with battery life. A full charge takes MUCH longer (usually ok as its charged overnight) so that maybe something to do with it.

My battery life was awesome for the first couple days, but now its just sucks... I lost 3 percent while it was just sitting on my pocket on my drive to work.
Yesterday I played Homerun 3D for 2 hours also and went from a 100% charge to 62%.
But mine is rooted, has the baked goods rom, and an auto rotating launcher with 7 screens while the brightness is always at 100%. Yea I guess you can say I'm a power user

I leave wifi on all the time and am getting 60+ hours of life out of it before a recharge. 3g is a battery killer .. roughly 18 hours with 3g on the entire time.

ram130 said:
Nope didn't see one here. Just saying to do that first. As for the CDMA I suggest you search else where because no one gonna know an answer for CDMA vs GSM in an N1 thread. You can just wait til its released, the phone ain't gonna go anywhere you know, it will be available after a month of release too.
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I see... I was looking for a "General" answer given the state-of-the-art of GSM and CDMA "HTC" smartphones as it relate to battery consumption. So the question still remains... given that xda is the forum where HTC smartphones are widely discussed I believe that posting the question here was adequate. The N1 is an HTC that uses components similar to other HTC phones. You might not think so... but we'll have to disagree on that.
EDIT: Btw, the question came to mind because a NYTimes article last week states that CDMA consumes more battery life than GSM. I recall this being the case in the past, but not sure if this is the case now-a-days. http://www.nytimes.com/2010/03/11/technology/11basics.html

To update - still at ~ 40%, no overnight charge. Moderate use last night.

This question is terribly subjective to the user/location. As one person point out, WIFI is more efficient then 3g, so some people see a huge advantage here.
My building also gets HORRID service, so my phone is constantly trying to find a signal which kills any phone battery
I think one cuold easily make the general statement that no this does not have the battery life of a blackberry, but the battery life is more then adequate. You can easily tailor your use to whether a charger is near.
If i know I cant charge it, I either carry a 2nd battery or take a few steps to save life. I turn my screen down(I like full brightness), clock the CPU down to 883, you could even turn off 3g networks unless you need Data for some reason. It would not be too hard to get this thing to 48 hours with normal talking/texting/some light browsing etc..
I am very impressed with the battery life overall.

seanowns said:
This question is terribly subjective to the user/location. As one person point out, WIFI is more efficient then 3g, so some people see a huge advantage here.
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Let me qualify my question a bit more... Assuming that the signal strength from both CDMA and GSM sources are either at "optimal levels" or at "similar low levels" and using the "same model" state-of-the-art Smartphone... Will the battery of the Smartphone using CDMA, last longer than the same model Smartphone using GSM?
As it relates to the N1... I understand that when the N1 from Verizon comes out that folks will be able to compare the performance of its features against the performance of the same features on the t-mobile N1.

tamanaco said:
I see... I was looking for a "General" answer given the state-of-the-art of GSM and CDMA "HTC" smartphones as it relate to battery consumption. So the question still remains... given that xda is the forum where HTC smartphones are widely discussed I believe that posting the question here was adequate. The N1 is an HTC that uses components similar to other HTC phones. You might not think so... but we'll have to disagree on that.
EDIT: Btw, the question came to mind because a NYTimes article last week states that CDMA consumes more battery life than GSM. I recall this being the case in the past, but not sure if this is the case now-a-days. http://www.nytimes.com/2010/03/11/technology/11basics.html
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I'm curious about it too. I think you should create a thread with the title instead. That way when you get an answer others searching for it can find it easy.
Highland3r said:
Getting approx 48 hrs with standard use (bit of surfing, email, txt's few calls bit of music on the way into work etc).
Decent 3G coverage at work and wifi at home, phone rarely has to hunt for signal.
Phone was charged last night and is showing 89% remaining - unplugged since ~ 7am thismorning.
Screen usually sits at the lowest brightness which is fine for indoor use.
I found a HUGE difference in battery life switching chargers. Originally used the supplied USB lead via a cheapy charger adapter thingy (how techincal! - it's the ones which allow you to plug in a USB lead and charge your phone)
Now switched to the charger which came with my bluetooth headset and that's helped no end with battery life. A full charge takes MUCH longer (usually ok as its charged overnight) so that maybe something to do with it.
Click to expand...
Click to collapse
What was the name of that bluetooth adapter? better yet what are the specs on the charger?
jz9833 said:
My battery life was awesome for the first couple days, but now its just sucks... I lost 3 percent while it was just sitting on my pocket on my drive to work.
Yesterday I played Homerun 3D for 2 hours also and went from a 100% charge to 62%.
But mine is rooted, has the baked goods rom, and an auto rotating launcher with 7 screens while the brightness is always at 100%. Yea I guess you can say I'm a power user
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Click to collapse
amlwaycooljr said:
I leave wifi on all the time and am getting 60+ hours of life out of it before a recharge. 3g is a battery killer .. roughly 18 hours with 3g on the entire time.
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Guys, help me out here. I hardly even pass 12hrs with light usage on 3G with automatic brightness. Man what the hell are you guys doing to get such good battery life??? Did you charge the phone on the first day without turning it on? do you charge it off?? come on, I'm so angry that I got HTC to send me a new battery which should be here shortly. So any tips can help me out here.
I use wifi at home now, get like 14hrs, but with battery tools I get 20hrs last night. But there is something obviously wrong with my phone here. So please help me out here
Highland3r said:
To update - still at ~ 40%, no overnight charge. Moderate use last night.
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..wanna switch batteries

ram130 said:
I'm curious about it too. I think you should create a thread with the title instead. That way when you get an answer others searching for it can find it easy.
What was the name of that bluetooth adapter? better yet what are the specs on the charger?
Guys, help me out here. I hardly even pass 12hrs with light usage on 3G with automatic brightness. Man what the hell are you guys doing to get such good battery life??? Did you charge the phone on the first day without turning it on? do you charge it off?? come on, I'm so angry that I got HTC to send me a new battery which should be here shortly. So any tips can help me out here.
I use wifi at home now, get like 14hrs, but with battery tools I get 20hrs last night. But there is something obviously wrong with my phone here. So please help me out here
..wanna switch batteries
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my battery life is not what I would like to call great, but compared to some of these stories I guess I'm getting better than most.
The single biggest thing to help battery life is to have your phone rooted and use SetCPU to make a profile to not allow the processor to clock above 500 MHz when on standby.
Before all of you go crazy and say "OMG jz9833 I bought a 1 GHz snapdragon to run at 1 GHz" calm down. The droid runs at 600 MHz so when your screen is off why not have it run at speeds around the same as a droid? This helps.

jz9833 said:
my battery life is not what I would like to call great, but compared to some of these stories I guess I'm getting better than most.
The single biggest thing to help battery life is to have your phone rooted and use SetCPU to make a profile to not allow the processor to clock above 500 MHz when on standby.
Before all of you go crazy and say "OMG jz9833 I bought a 1 GHz snapdragon to run at 1 GHz" calm down. The droid runs at 600 MHz so when your screen is off why not have it run at speeds around the same as a droid? This helps.
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Well im om stock so that aint gonna work for me. Thanks for the info tho. When I get root it will be the first thing to do.

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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Click to collapse
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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Click to collapse

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.
Click to expand...
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]

UnOffical- Offical Battery Use for the Evo

I will be getting the Evo when it will be coming out and I and probably 100 other people are worried about the battery life of this monster. What we know is this guy has a huge screen, a WiMax radio and a 1 GHz processor that will suck up the battery life crazy. However, HTC has made sure to put in a 1500 mAh battery that is almost as big as the phone. Coming from the Pre this is comforting but I am still kinda skeptical about the battery life if this monster.
So the purpose of this thread is for all of those lucky people who already have a Evo to post there experiences with the life of this superphone. What I need of you is normal daily battery life with 3G and 4G, normal screen brighness, how much you use internet, email check frequency, and anything else you what to mention. This will really help alot of people out here who are potential Evo owners.
Oh, and Thanks in advance!!!!
EDIT to moderators: This maybe a good thread to make a sticky.

http://www.seidioonline.com/ProductDetails.asp?ProductCode=BACY35HEV4-BK
This is the beast of a battery I'm planning to get for my future Evo. Can't wait to see what 2000 mAh of juice will do to its durability .

Mecha2142 said:
This is the beast of a battery I'm planning to get for my future Evo. Can't wait to see what 2000 mAh of juice will do to its durability .
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Keep in mind: this battery will add 25-33% to the thickness.

The extra 3 to 4 mm of thickness would make the Evo as thick as the G1 which to me is no problem at all considering my current phone is the G1 WITH an extended battery.

robertc1965 said:
Keep in mind: this battery will add 25-33% to the thickness.
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Not much of a problem for me; if anything, it will make the Evo easier to hold in the hand.

robertc1965 said:
Keep in mind: this battery will add 25-33% to the thickness.
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Click to collapse
That just may be perfect for the protruding camera lens many are worried about!

Well I live in a 3g area and work in a 4g area. I have a 2 hour drive each way and half way I hit 4g. Right now if I just stay on 3g the battery can last me all day with normal usage. I usually only charge the device while I'm driving home from work so I can listen to my music or podcasts. I'd say on normal usage you get about 12 hours. That's what I get at least. But here's a solution for you. The Evo takes a normal HTC Hero or Touch Pro 2 battery. I bought a TP2 battery on eBay for about $5. Now all I need to do is make sure I keep one charged and the other charged and in my car. Then I can swap if I need to.
Also note that as of now, 4g sucks battery big time. I think this is a bug in the software so once they fix that then we'll be fine. But right now if you leave 4g on permanently you probably only get about 4 hrs. Just a warning.

Thx for the comments so far! My experience with the Pre, which had alot of battery bugs at the start, says that after all the bugs are worked out it will give you 1-3 hours more. So with 4G running 5-6 hours strait is an ok deal. Just the most important thing to me right now is just to have at least 12 hours of usage with a far amount of browsing on 4G at the time.

I previously owned an HD2, which is nearly identical to the EVO 4G except for OS, and thought battery life was pretty good. Got at least a day out of it and I was on it all the time (wifi connection mostly).

this is pretty surprising that people are getting this much out of the battery.
i was figuring maybe four or so hours max. i can't even last a whole day on my droid with low usage, but the fact i dropped it in the toilet could have something to do with it.

turn said:
this is pretty surprising that people are getting this much out of the battery.
i was figuring maybe four or so hours max. i can't even last a whole day on my droid with low usage, but the fact i dropped it in the toilet could have something to do with it.
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Ha ha. Yeah toilets and phones usually don't mix. Unless it's WinMo in which case thats where it belongs
But yeah my battery has been very good to me. Definitely can't complain. On a side note it does take a considerable longer amount of time to charge than the Hero I was using but that only makes sense.

Yesterday I took my Evo to work with me for the first time since receiving it Friday. It had a full charge when I left the house at about 340pm. At about 1030pm, I got the message to connect the phone to the charger. In between that time span, I did some web browsing and sent some text messages (I love the Evo keyboard). I didn't make any calls because I'm still carrying my Palm Pre with me until the 4th when I can get my service switched to my Evo. But anyway the Evo lasted a lot longer than my Palm Pre. It probably would have even lasted longer but I had some programs pulling information every 15mins and some every 2 hours. So I set all them to pull information at longer intervals. So I'm going to see how long it'll take before I get that message again. But so far the battery that came with Evo serves me fine.

chuckhriczko said:
Well I live in a 3g area and work in a 4g area. I have a 2 hour drive each way and half way I hit 4g. Right now if I just stay on 3g the battery can last me all day with normal usage. I usually only charge the device while I'm driving home from work so I can listen to my music or podcasts. I'd say on normal usage you get about 12 hours. That's what I get at least. But here's a solution for you. The Evo takes a normal HTC Hero or Touch Pro 2 battery. I bought a TP2 battery on eBay for about $5. Now all I need to do is make sure I keep one charged and the other charged and in my car. Then I can swap if I need to.
Also note that as of now, 4g sucks battery big time. I think this is a bug in the software so once they fix that then we'll be fine. But right now if you leave 4g on permanently you probably only get about 4 hrs. Just a warning.
Click to expand...
Click to collapse
I have the Hero 1800mAh battery in my Hero and it's been a champ so far. Going to grab another one for my Evo once I pick it up this Friday.

turn said:
this is pretty surprising that people are getting this much out of the battery.
i was figuring maybe four or so hours max. i can't even last a whole day on my droid with low usage, but the fact i dropped it in the toilet could have something to do with it.
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What are you doing with a phone in a bathroom? Jerk off material?

As the owner of a Sprint Hero, I was very happy to discover that the battery is interchangeable with my Evo.

When I actually tested out the battery (second day of ownership): I was at 36% remaining after 14 hours of moderate use (auto-backlight, occasional texting, reading emails, installed a few apps, browsing XDA, etc). Some observations: The first 10-15% will drain more quickly than the others, incredibly intense apps like 3D gaming will extremely quickly drain the battery (like 6% in half of an hour), and keep your brightness on 20% or so because auto seems to always keep it very bright.
Yesterday I tried the typical "full discharge" test since people seem to rave about it, and I don't see any harm. I will see how this goes today.

jigglywiggly said:
What are you doing with a phone in a bathroom? Jerk off material?
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Ha ha. Ironic how someone named jigglywiggly said this And honestly, why not? That should be a selling point of this phone ha ha

chuckhriczko said:
Ha ha. Ironic how someone named jigglywiggly said this And honestly, why not? That should be a selling point of this phone ha ha
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Hell, that's the whole purpose of the kickstand, right?

TheBiles said:
Hell, that's the whole purpose of the kickstand, right?
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Ha ha. Amen brother

i had it on top of the toilet playing music while i showered...or so the story goes. lolol

Reviews of the HTC Thunderbolt have me concerned

Battery life estimates for the Thunderbolt are in the neighborhood of 4hrs due to Verizon's LTE 4G. There is no way to disable the battery draining 4G.
How would this affect our Xoom's? I think the general consensus is that the Xoom has "very good" battery performance but that's on 3G. Maybe it's not worth doing the free upgrade right away???
Just throwing that out there.

Snapdragon has never had good battery life to begin with.

You don't have to worry since the 4G upgrade won't happen until around June and that is only what is speculated. Assuming June is the time frame to send back your xoom, Verizon should be coming up with a solution the 4G battery drain problem.
A few 4G smartphones are coming out in april (Motorola Droid Bionic, Samsung Charge, LG Revolution) which should give Verizon more feedback to see if these new devices are also draining battery like crazy using 4G. The hope is that by June/July, Verizon should have pinpointed the problem and have a fix by then whether that is small or big as long as there is progress.
Keep in mind that HTC is not known for its great battery life. Hopefully the Droid Bionic coming out in April does well since that is the phone I am planning to get and switch from Sprint to Verizon.

atoy74 said:
Battery life estimates for the Thunderbolt are in the neighborhood of 4hrs due to Verizon's LTE 4G. There is no way to disable the battery draining 4G.
How would this affect our Xoom's? I think the general consensus is that the Xoom has "very good" battery performance but that's on 3G. Maybe it's not worth doing the free upgrade right away???
Just throwing that out there.
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You can disable 4G threw an app called Network by Phillip Magelow. I have the Thunderbolt and 4G on it sucks the battery like no other. Plus, HTC is known for not having the best battery life (had an Eris and it sucked). Juice Defender and PowerMax have helped quite a bit.

I don't believe that 4G has much to do with the HTC Thunderbolts bad battery performance.
I have a HTC Desire HD, it doesn't have 4G and it's battery lasts maybe 4,5hrs of continuous use.

Wobblin30 said:
You can disable 4G threw an app called Network by Phillip Magelow. I have the Thunderbolt and 4G on it sucks the battery like no other. Plus, HTC is known for not having the best battery life (had an Eris and it sucked). Juice Defender and PowerMax have helped quite a bit.
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Yeah, I figured that most people on XDA would figure out how to disable 4G but I was mainly considering the avg Joe.
Let's see if Moto/Verizon figure it out. To date I'm a little surprised we haven't seem more OTA updates.

I don't know that this is unique to LTE, either. I know that Wimax on my Sprint Epic also kills the battery life.
However, I'd imagine the impact on the Xoom would be less visible, since the Xoom has such better battery life to begin with.

wynand32 said:
I don't know that this is unique to LTE, either. I know that Wimax on my Sprint Epic also kills the battery life.
However, I'd imagine the impact on the Xoom would be less visible, since the Xoom has such better battery life to begin with.
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Yes, all 4G technologies are battery hogs right now. The difference is you can disable Wimax and live on 3G if you wanted. That's what I do with my Evo. I treat Wimax just like wifi...I enable it when needed. LTE (as of now) cannot be easily disabled.
As for impact on the Xoom, I'd tend to agree with you. BUT, if you're device drops for 8hrs of constant use to 6hrs, I'm sure many people would complain.

atoy74 said:
Yes, all 4G technologies are battery hogs right now. The difference is you can disable Wimax and live on 3G if you wanted. That's what I do with my Evo. I treat Wimax just like wifi...I enable it when needed. LTE (as of now) cannot be easily disabled.
As for impact on the Xoom, I'd tend to agree with you. BUT, if you're device drops for 8hrs of constant use to 6hrs, I'm sure many people would complain.
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There is an app that turns it off with a push of a button, how much easier do you want it

Well, there's a few factors here that should be taken into consideration before getting your panties in a twist...
First, you can turn the 4G radio on or off on the TB, either by using an app or dialing into the test menu. I have no doubt the same will be possible on the Xoom. Second, VZ's LTE coverage isn't everywhere, so it may be a moot point for some folks anyway. Third, even if LTE is available in your area, some may not care to send their Xoom to Moto for the upgrade, even if it is free. Example- I hardly use the 4G radio on my EVO, though it was a big sellling point for me when I first acquired it. The only time I really use it is when browsing YouTube, or for wireless tethering (but of course YMMV).
Either way, nothing to get 'em in a twist over, eh?

It is known fact that faster modem consumes more power. Bandwidth is directly translated into power requirement.
However, because of larger battery modem energy consumption for Xoom may be only 5-10% of total energy available in the battery while that ratio might be 15-25% for the Thunderbolt having smaller battery.
I wouldn't worry about it for Xoom. Besides you can save it switching to Geico (or 3G).

Keep in mind that its not just the 4g radio that's draining the thunderbolts battery. It has a huge screen, fast processor, and a tiny tiny tiny battery (around 1250mAh?). Case in point the Evo 4g had crappy battery life even staying on 3g with a larger battery than the TB.
From what I can tell the screen is by and large the hugest drain on the Xooms battery, LTE will of course have more drain, but it won't affect it as much as it does on a phone I don't think.

Concerns about Xoom 4G upgrade (Verizon)

I have read some disturbing reviews about the Thunderbolt which is a 4G LTE Verizon phone. Although the phone itself sounds great, what concerns me are reports that the battery life is around 4-5 hours with 4G turned on.
So my question and concern is, once we upgrade the Xoom to 4G when available, are we going to be victims of the same poor battery life with 4G?

You're not required to have data connection on all the time. A toggle switch widget can fix the problem. Just turns it on when needed. But yeah I do agree that 4g and 3g will drain the battery.
Sent from my Nexus One using XDA App

I already keep my Xoom on airplane mode to disable all radios that I don't specifically activate. Seems to help with battery life. I downloaded some toggle Widgets to shortcut all the steps.
[sent with Xooming Android technology]

wang1404 said:
You're not required to have data connection on all the time. A toggle switch widget can fix the problem. Just turns it on when needed. But yeah I do agree that 4g and 3g will drain the battery.
Sent from my Nexus One using XDA App
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That is not really a solution. Currently with my Xoom, I can be on Wifi at home and when I am out, 3G kicks in. I do not want to toggle a widget when I need data (which is always) as I am sure most other people will not want to do. My battery life is totally acceptable currently with 3G and no toggling on/off. So will the 4G upgrade cause the battery life to be cut in half or worse?

keitht said:
That is not really a solution. Currently with my Xoom, I can be on Wifi at home and when I am out, 3G kicks in. I do not want to toggle a widget when I need data (which is always) as I am sure most other people will not want to do. My battery life is totally acceptable currently with 3G and no toggling on/off. So will the 4G upgrade cause the battery life to be cut in half or worse?
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I seriously doubt 4g will be much (if any) worse than 3g is now. The only way would be that you are on it more and keeping the screen on for longer times because it will RULE! lol

ghoticov said:
I seriously doubt 4g will be much (if any) worse than 3g is now. The only way would be that you are on it more and keeping the screen on for longer times because it will RULE! lol
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Just debating here but why do you think that? Why would Thunderbolt have a 4-5 hour battery life using 4G? You think that poor life is not 4G LTE related? And they have the luxury of swapping batteries which we cannot do with the Xoom.

I don't know how closely it is to sprint's 4g, but enabling 4g on my evo is a battery killer too. the good thing is that you can toggle 4g off and run in 3G mode. no need to disable data completely

madsquabbles said:
I don't know how closely it is to sprint's 4g, but enabling 4g on my evo is a battery killer too. the good thing is that you can toggle 4g off and run in 3G mode. no need to disable data completely
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That begs the question,why get 4g if you have to manage it manually like that?

keitht said:
That begs the question,why get 4g if you have to manage it manually like that?
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Keep in mind, that the 4g upgrade will be OPTIONAL and if you are seriously debating whether the upgrade will be worth it or not, then simply don't send it in for the upgrade! The less people to send it in (like you), would in turn mean faster return time for my upgrade! I personally don't give a damn about having to click a toggle switch when I want to download at crazy fast speeds!
Just my .02
I can also guarantee you that 4g will have a pretty noticeable impact on battery life. And to be perfectly honest with you, the HTC Thunderbolt (stock), even with 4g turned off, still has absolutely horrible battery life.

Instien said:
Keep in mind, that the 4g upgrade will be OPTIONAL and if you are seriously debating whether the upgrade will be worth it or not, then simply don't send it in for the upgrade! The less people to send it in (like you), would in turn mean faster return time for my upgrade! I personally don't give a damn about having to click a toggle switch when I want to download at crazy fast speeds!
Just my .02
I can also guarantee you that 4g will have a pretty noticeable impact on battery life. And to be perfectly honest with you, the HTC Thunderbolt (stock), even with 4g turned off, still has absolutely horrible battery life.
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Your response is very defensive and that is not the purpose of my questions. I am looking for meaningful conversation regarding the possibity that a 4g upgrade will significanty reduce battery life on the Xoom. All speculation but something to talk about.

So what I can gather is more or less around what everyone says. Get your 4g upgrade but don't turn it on and stick to 3g unless you feel you need the speed bump. So nothing will change except you know you have your turbo button-widget (yes old school) available.
That is unless it will be stuck on 4g at all times but looks like that is a feature that is toggled by today's hardware not permanent yet due to battery capacities.
Sent from my DROID2 GLOBAL using XDA App

foreverinpanama said:
So what I can gather is more or less around what everyone says. Get your 4g upgrade but don't turn it on and stick to 3g unless you feel you need the speed bump. So nothing will change except you know you have your turbo button-widget (yes old school) available.
That is unless it will be stuck on 4g at all times but looks like that is a feature that is toggled by today's hardware not permanent yet due to battery capacities.
Sent from my DROID2 GLOBAL using XDA App
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I am not one to complain without reason but I certainly hope this is not the case.

MY plan is to remove the dummy card right before shipping it out so I can put it back if I am unhappy with the battery life.

In theory, 4g should use less battery, not more. 3g chipset firmware is highly optimized, though, due to the technology having been around for a while.
It may be a few firmware revisions to hit minimum use for 4g, but it shouldn't use dramatically more than 3g.

The answer for this thread is simple. Yes 4G will use more battery power, that's the short end of the stick. If you live in a 4G area and don't need the speed boost and would rather save battery there will be a way to disable 4G and use 3G just like with the thunderbolt or evo
Sent from my Evo using Tapatalk

It isn't speculation. The evo has a long track record with 4g of a very similar type. 4g will be a battery hog. But I never use it on my evo unless I'm tethered or streaming. Otherwise I find 3g more than enough for most tasks. I will send my xoom in for the upgrade. But I don't activate it. I tether it to my evo. But yes it will be a battery hog. Whenever you use cutting edge technology they tends to develop the speed and reliability first and worry about power consumption last.

I work for Verizon and honestly rarely hear many complaints about the battery life on the Thunderbolt. Many of my customers get awesome battery life and we have 4g in my area. The LTE radio does consume more battery than 3g especially if you are downloading a large file or something. Another thing to consider is the Thunderbolt is like a big brother to the Incredible and that phone had HORRIBLE battery life. The Thunderbolt has a much larger screen, 4g, and does not have a very large battery. I don't see 4g having a huge impact for most people but for those that feel it helps there will always be a toggle widget or “turbo button” like someone said earlier. I will definitely be sending mine in right away...
Sent from my Xoom using Tapatalk

Ferradinho said:
I work for Verizon and honestly rarely hear many complaints about the battery life on the Thunderbolt. Many of my customers get awesome battery life and we have 4g in my area. The LTE radio does consume more battery than 3g especially if you are downloading a large file or something. Another thing to consider is the Thunderbolt is like a big brother to the Incredible and that phone had HORRIBLE battery life. The Thunderbolt has a much larger screen, 4g, and does not have a very large battery. I don't see 4g having a huge impact for most people but for those that feel it helps there will always be a toggle widget or “turbo button” like someone said earlier. I will definitely be sending mine in right away...
Sent from my Xoom using Tapatalk
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Sorry but you either live in a nice vacuum or a bubble or a cocoon because EVERYONE I know with this phone (friends, foes and customers too) loves it to death but hates the battery life with 4g on, and by default there's no way to turn off 4g when not needed.
Had to root for some friends and show them the 4g LTE off widget that came out the other day. At least that helps.
As for the Xoom, even if you might not want to use 4g or sign up, still send it in to be done. Definitely will help with resale value down the road.

my friend has the thunderbolt and the battery sucks, and he isn't in a 4g area. Mr verizon rep is on a feel good drug, or something.

keitht said:
I have read some disturbing reviews about the Thunderbolt which is a 4G LTE Verizon phone. Although the phone itself sounds great, what concerns me are reports that the battery life is around 4-5 hours with 4G turned on.
So my question and concern is, once we upgrade the Xoom to 4G when available, are we going to be victims of the same poor battery life with 4G?
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It's going to drain more then the cdma radio does, at least until the technology and the software support behind it is more mature. But that is to be expected with bleeding technology.
Also remember that part of the battery issues on the TB comes from the fact that people use it alot more then previous phones. Streaming data is alot more power intensive then just the comparable occasional usage their previous device saw. I have a TB and if I use the snot out of it then yeah I can kill the battery in a couple of hours. However if I am busy and use it like I used my D2 or DX then I can get through the day without having to recharge.
Also you can turn just the LTE radio off when you are not using it if you are that concerned
Sent from my Xoom using Tapatalk