Develop Bugs

Story @ Tech Crunch.. QUESTION FOR CURRENT EVO USERS

In the story he states that the batter would last four hours? any truth to this? he also explained that there is lag in the sense?
http://techcrunch.com/2010/05/29/htc-evo-4g/

Maybe 4 hours of non-stop web browsing with the brightness all the way up while on 4G. Also, I've never had any lag with Sense.
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The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
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hmm, alright i mean this is big for a person who is out 24-7. (arnt we all) i wonder if it has to do with anything similar to what the hero had when it was released.

My battery life is not perfect. But people always have this problem. I was a G1 owner and everyone complained about the battery life when it first came out. And then slowly after a mont or two everybody stopped...why? Because the battery life got better with time. From 5 hours or so to 9 or 10 hours.
Then I went to an HD2. The first week I was so scared I had made a huge mistake because the battery would last about 4 or 5 hours. After I did as suggested and let the battery completely burn out and then completely recharge for about three cycles, the HD2 had the best battery I had ever seen. i could use it for 2 days and have 60% left.
Now I have an Evo. And the first stay (with constant use) it died after about 4.5 hours. But I am going through the process of draining and then FULL recharge of 6-8 hours and I'm sure it will be fine.
People think they plug the phone in an hour or two and it says 100% and they have charged it. My opinion is that it takes the battery a while to know what 100% and 0% are on any given battery. After it cycles through a few times it will actually have a true accounting of the battery life, power consumption.
That is all my opinion and experience. I am hoping the EVO has a similar battery life to the HD2. That would be perfect for me.
EDIT: And as for lag....the guy is obviously on crack and just saying stuff to say stuff. I doubt he even has an EVO. He's reading about Sense Lag on the HD2 which there was some) and passing that information on. Anyone who actually HAS an evo have any lag? I think not.
And if he thinks an iPhone 3GS in ANY way blows the EVO out of the water...he is obviously lying. I mean based on feature set alone. There is no way the iphone can browse as fast (4G...hello), operate as fast (gee isn't that processor almost twice as fast), take better pictures? No. Have a front facing cam? No. Oh yeah...that screen size on the iPhone sure is better than the EVO. WTF?
Some people's kids.

ministersin said:
My battery life is not perfect. But people always have this problem. I was a G1 owner and everyone complained about the battery life when it first came out. And then slowly after a mont or two everybody stopped...why? Because the battery life got better with time. From 5 hours or so to 9 or 10 hours.
Then I went to an HD2. The first week I was so scared I had made a huge mistake because the battery would last about 4 or 5 hours. After I did as suggested and let the battery completely burn out and then completely recharge for about three cycles, the HD2 had the best battery I had ever seen. i could use it for 2 days and have 60% left.
Now I have an Evo. And the first stay (with constant use) it died after about 4.5 hours. But I am going through the process of draining and then FULL recharge of 6-8 hours and I'm sure it will be fine.
People think they plug the phone in an hour or two and it says 100% and they have charged it. My opinion is that it takes the battery a while to know what 100% and 0% are on any given battery. After it cycles through a few times it will actually have a true accounting of the battery life, power consumption.
That is all my opinion and experience. I am hoping the EVO has a similar battery life to the HD2. That would be perfect for me.
EDIT: And as for lag....the guy is obviously on crack and just saying stuff to say stuff. I doubt he even has an EVO. He's reading about Sense Lag on the HD2 which there was some) and passing that information on. Anyone who actually HAS an evo have any lag? I think not.
And if he thinks an iPhone 3GS in ANY way blows the EVO out of the water...he is obviously lying. I mean based on feature set alone. There is no way the iphone can browse as fast (4G...hello), operate as fast (gee isn't that processor almost twice as fast), take better pictures? No. Have a front facing cam? No. Oh yeah...that screen size on the iPhone sure is better than the EVO. WTF?
Some people's kids.
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I understand what you are saying. That was the only reason i am worried about buying an EVO. This author must have had all the applications syncing every 15 minutes. I have an apple itouch not sure how close the phone and this thing is but I like it. It is smooth and quick. (buts its not a phone). When it comes to android... Its about the experience that comes with it.
But this guy is positively being paid off haha

The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
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With light usage I had 36% remaining after 14 hours the other day. I think you just need to give the battery time to get adjusted. However, I have noticed that it seems to drain faster from 100-80% than it does from 80-50%.
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TheBiles said:
With light usage I had 36% remaining after 14 hours the other day. I think you just need to give the battery time to get adjusted. However, I have noticed that it seems to drain faster from 100-80% than it does from 80-50%.
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Well I actually just recently noticed the same about my iPhone 3G. The first 10-15% go really fast.

My evo seems to do pretty good with the battery I can go the whole day without needing a charge but I do charge it when I get home. When I'm using it for games all day it drains pretty quick but at those time I plug it in... I don't know what they expect when your rocking a 1ghz processor, a 4.3 inch screen, and about every type of network connection you can fit in a phone... as far as lag goes on this phone I notice very little mainly when I'm installing like 3 or 4 apps at once... compared to my hero this thing is a rocket! And once Android 2.2 is put on here this thing will be smoking.
Sent from my PC36100 using Tapatalk

My Evo lasts for 8-9 hours. That's 70% idle with screen off. Cell Standby at 40+% is killing my battery.
My motorola droid in the same time still has over 50% charge. There's no question that the Evo is a battery drainer for whatever reason.

hate to say it, but once a fan boy always a fan boy. I used to have a win-mo device (touch pro) and i like it, then i moved up (should i say downgraded) to the instinct- worst decision ever. than i used the android platform on my hero. I'd have to say its leaps and bounds easier than win-mo.. My brother has an iPhone which i always play with when he comes over, and i think its a really easy interface to play with.. thats all. The speeds at which apps were open weren't any better than my hero. I also opened up maps on his phone and mine, and my location was dead on with the hero, the iPhone was 100meters. LOL.
But everyone needs to try other stuff out and make there own decisions, dont let someone who is obviously a fan boy tell you whats good and bad.

thechiman said:
The battery is is very poor. I'm not exactly sure why that's the case since the EVO doesn't report the screen as a large draw. For example, I unplug my EVO, connect my Bluetooth headset and listen to a podcast for 10 minutes. That drains the battery to 92% from a full charge.
You will most likely have to carry a spare battery to get through the day, with light usage.
I'm hoping its an optimization issue and they can fix the battery issue with an update. Fingers crossed.
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Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
thats ur prob ur using bluetooth it will use more battery and then ur playing the podcast at the same time any phone u do that on u will use more battery

the battery technology is a few years old. the cpu is 1ghz.. the phone is sniffing 3g/4g/wifi/bt plus the shiny screen and backlight all use power. the battery technology being used in this state of the art phone is not advancing as fast as the phones are...
the reason the top ~10% of the charge goes so quickly is due to the you taking the phone off charge.. the cells in Li-ION batteries are not created equal. some cells will get a stronger/longer charge than other cells. once you take the battery off charge, the cells that are stronger in charge than the others will feed that extra charge to those other cells, so your battery charge will fall down to around 90 or so pretty quickly out the gate.. from there the cells are all stable and equally charged and stay at a constant discharge rate for about ~87% to about ~55%.
once the charge falls below 55% the cells really start to lose their charge and the battery curve drops drastically.
when you "top off" the phone for , say, 30 minutes or so and you take it off charge and you see 100%. do understand that one or two cells have a fuller (my word) charge than others.. once the cells equalize, then you will see the tru charge (which will be much much less than 100%)...

I'll post my findings here although probably no one will believe me. I'm not a fanboi since i've phones on three carriers.
My EVO will lose 2% per hour sitting idle which is fantastic. My HD2 loses approx. the same amount, maybe a little less.
I've found the EVO to be no more power hungry than any "superphone" i've used including the iphone 3gs.

signal strength also plays a part
one thought based on my experience with a palm pre and htc hero: signal strength.
My office has very low signal strength (1 bar or less). The battery seems to drain quite fast here. If I'm somewhere else with good signal, my battery lasts much longer. Same battery drain if you're going in and out of evdo / 1Rxx.
Sean

My battery life is like all the other phones i had lately (see my sig).
No more, no less.

I have to say my battery is getting better with going through a couple full charges, as for lag nope none not here

“Phone idle,” and “Android system” that eat up over 75% of the life.
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LMAO, the fact that he wrote that puts severe doubt in his skills to review an android phone.

I can't believe this thread is going on seeing as that's an Apple Fanboy site. Will say anything to make his Iphone sound like the best thing ever. He lost all credibility when he said the Nexus One and Incredible were better phones.

marctronixx said:
the battery technology is a few years old. the cpu is 1ghz.. the phone is sniffing 3g/4g/wifi/bt plus the shiny screen and backlight all use power. the battery technology being used in this state of the art phone is not advancing as fast as the phones are...
the reason the top ~10% of the charge goes so quickly is due to the you taking the phone off charge.. the cells in Li-ION batteries are not created equal. some cells will get a stronger/longer charge than other cells. once you take the battery off charge, the cells that are stronger in charge than the others will feed that extra charge to those other cells, so your battery charge will fall down to around 90 or so pretty quickly out the gate.. from there the cells are all stable and equally charged and stay at a constant discharge rate for about ~87% to about ~55%.
once the charge falls below 55% the cells really start to lose their charge and the battery curve drops drastically.
when you "top off" the phone for , say, 30 minutes or so and you take it off charge and you see 100%. do understand that one or two cells have a fuller (my word) charge than others.. once the cells equalize, then you will see the tru charge (which will be much much less than 100%)...
Click to expand...
Click to collapse
the battery in the EVO (and pretty much every phone evar) is a single cell battery.
you have no idea what your talking about do you?

Screen killing battery

hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?

alvespt said:
hello my phone doesnt last 1 day of charge and it says 40% is due to display/screen can anyone help me?
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You can lower your brightness if it is not already at the lowest setting.

Unfortunately, the galaxy nexus has poor battery life. You could also try turning off data when you don't need it.
Sent from my Galaxy Nexus using Tapatalk

the screen is at lowest and it doesnt make sense turning of data if the problem is from screen right?

I'm having the exact same issue. Screen is totally eating up my battery life. It took 30 minutes for the battery to go down by like 10%. And the screen is 40% of the battery life issue.

Arrio said:
Unfortunately, the galaxy nexus has poor battery life.
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Maybe I just don't use the screen as much as you, but I don't find this to be true for me. I find it has great battery life. I don't sit for hours with the screen on, but I do regularly text and check emails throughout the day, do a bit of web browsing, take some calls, and play some Angry Birds or other games in the evening. The screen is always at the top of the list for battery usage, but even on an extreme day I still have more than 30% battery left by the time I go to bed. I throw it on the charger and I'm ready to go again in the morning.
I disagree that the Galaxy Nexus has poor battery life, in general. I would argue that: all high-end phones have "poor" battery life because of all the things they do (especially 720p screens), your personal use of it consumes a lot of power and you could benefit from an extended battery, or you have a faulty device.

hi there, i do that exact same things with no games, so less usage but i get less than a day... i love the phone but the batery is just no working...

I don't understand why people don't get that when you have a screen that is 4.65'' it will destroy the battery life. My screen use is always at 60% or more but yet I still get good battery life. The screen is going to use the majority of your battery when compared to other things, that's just how it is.

sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...

Most phones are $600 to $700, and name one 4g phone that will last more than 10 hours with moderate use and no extended battery, just not going to happen. You need to reset your expectations.

GN battery is giving lots of trouble, too. I picked up the phone from charge and it was 100% charged. ! hour of usage with 3g on. Usage includes 1 hours or music and reading of pdf books simultaniously and battery is dropped to 61%.

alvespt said:
sorry but thats not the point, when you pay 700 for a top phone, that is suposed to be the google experience to carry arround wiith you and you can only get 10 hours of battery time something went wrong in the process...
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I think you should take a look at every other android phone that has come out with the same specs in the last year. Everything from the EVO 3d to the thunderbolt have their default battery's not last more than around 6-8 hours with constant use because of the screen & processors.
THis is why Verizon offered the extended batteries at a discounted rate right off the bat, because default batteries have never ever lasted that long in topof the line smartphones. FFS the new iphone 4s I've heard from a friend that their phones don't even last 24 hours.
I have a galaxy nexus, and mine has lasted... let me see.. one sec...1 day 3 hours and 25sec's with 35% left. (of course I have the extended battery) but here's the kicker: the extended battery has basically the same back as the regular phone does. so if they so desired, verizon could technically put out another extended battery just like all the rest of the phones, but they might not do that. I'm content with the battery life as it is almost identical as the droid X from which I came. The only difference is since I have a lot of un-updated apps for ice cream sandwich one of them is using "mediaserver" A LOT. I'm talking about that being the top of my battery draining with the screen being second. They both have taken ~20% with android OS itself taking 13, PlayerPro taking 13, and other random things like calls and txt msging taking ~10% each.
So I would suggest not trying to watch a lot of stuff on your phone while on battery, or don't expect your battery to survive long while watching stuff on that great screen

hymn thanks for the feedback so the only solution I see would be to go for a bigger battery. I'm from Portugal were could I buy one and whays the power?
Sent from my Galaxy Nexus using Tapatalk

If your screen usage is less than 50%, it be more worried about what else is killing your battery........

How much battery life do you guys get with emulators?

I'm not sure if it's the battery that is the problem, as I bought this r800i the other day sold as a demo unit.
I've been experimenting with different roms/kernels and decided to stick with AtoMic Gb 7 and LuPuS-GingerBread-v12.
From all the research I made before buying it I was seeing posts on people getting 5ish hours with wifi off and lowest screen brightness etc, not sure how from my experience.
eg; Playing Yoshis Island with SuperGNES on the train, lowest screen brightness, wifi off, data off, gps etc off my battery went from 82% to 14% in 15 minutes.
Any ideas/tips/etc?

That sounds like an insane amount of battery loss try getting a new battery there like $10-$15 on ebay
sent from my Sony Ericsson xperia play ™ (r800x) using Tapatalk 4

Thought it was a little odd, my battery just now went to around 60% from 100% in 23 minutes according to the battery usage thing.
Time for a new battery, I'll update this when I get one.

WTF??thats crazy man,15 minutes will drain 5%(maximum)with screen brightness at 75%,get a new battery!!

Hey man, I was around back when lupus GB V12 was released, look at the posts from then and you'll see some users complain about bad battery life and excessive heating found only in this update (link here), use one of the official or user-provided links to get V11, I use it with Gin2JB overclocked to 1.4GHZ, smartassv2, sio, no undervolt, and get a good 4-6 hours on Mupen64Plus AE (configured for maximum accuracy) with a heavy N64 game such as Majora's Mask (which was so much so that it required the expansion pack and even then had its FPS capped at 20). With Snes9x EX+ I can go about an entire day using it, let alone little more than a mere hour. Safe to say, my battery life's pretty damn good, well, for my standards anyway. Stock battery too! I'm familiar with an X8 and a Galaxy Ace original, similarly modded by myself, both have comparably terrible battery life and performance, even in general. Still, I'm with Raven and CrazyMonkey as I certainly wouldn't rule out a perma-dead battery.

I've ordered a 2500mAh battery, should be here in a few days. I highly doubt it'll be 2500mAh, but also doubt it'll be less than 1500mAh.
I'll look at v11, too.
I get lots of power offs, too. Tends to happen more when I'm not charging and using anything that uses more power: eg; data/screen brightness/gps and it'll just instantly turn off. So it really looks like the battery is just a dud. Today I was trying to check something on google maps, I had to turn it back on around 15 times before I got far enough into the menu to turn data off for it to stop turning off on me.

azkay said:
I've ordered a 2500mAh battery, should be here in a few days. I highly doubt it'll be 2500mAh, but also doubt it'll be less than 1500mAh.
I'll look at v11, too.
I get lots of power offs, too. Tends to happen more when I'm not charging and using anything that uses more power: eg; data/screen brightness/gps and it'll just instantly turn off. So it really looks like the battery is just a dud. Today I was trying to check something on google maps, I had to turn it back on around 15 times before I got far enough into the menu to turn data off for it to stop turning off on me.
Click to expand...
Click to collapse
Haven't had any problems since getting the new battery. No reboots, poweroffs or 85% charge lost for no reason.

Battery drain

Hi, so basically I wanted to know how fact peoples' battery drains depending on the app. My brightness is on 50% with adjustment off. When I am using twitter it goes down by 1% in about 10-12minutes. But when I use Facebook or LectureNotes (main worry) its about 4 or 5 % per minute. Could someone do a test using these app and compare? All the things like GPS, blutetooth are off, wifi always on.

@kamilsss: You can see battery usage in the `battery´ section of your device's system settings.

I know you can, my concern is that my battery seems to be draining a little bit quicker than it should be when I compare it to others' notes

Same Issue Over Here..
Just Bought SM-P600 In "Open Box - No Signs Of Use" Condition From Amazon Warehouse.
I Play Clash Of clans Or a Video Over Wifi And Battery Dead After 1-2 hours Top.....

itaybl said:
Just Bought SM-P600 In "Open Box - No Signs Of Use" Condition From Amazon Warehouse.
I Play Clash Of clans Or a Video Over Wifi And Battery Dead After 1-2 hours Top.....
Click to expand...
Click to collapse
Clash of Clans is a battery destroyer, no matter what device.
I bought my tablet 1 month after release. It's now 1.5 years old. I wonder if we are starting to near that magical point where Li-ion batteries start to lose capacity due to age?

jak341 said:
Clash of Clans is a battery destroyer, no matter what device.
I bought my tablet 1 month after release. It's now 1.5 years old. I wonder if we are starting to near that magical point where Li-ion batteries start to lose capacity due to age?
Click to expand...
Click to collapse
I got mine about then also and just replaced the battery, it lasts alot longer now. I charged mine over 900 times. The only reason I know cause of a app that keeps count of how many times the battery is charged, the spen is taken out and headphones plugged in plus some other things. I went for a little bit expensive battery but totally worth it. I don't even have to charge the battery everyday like I had to before replacing it.

mikep2323 said:
I got mine about then also and just replaced the battery, it lasts alot longer now. I charged mine over 900 times. The only reason I know cause of a app that keeps count of how many times the battery is charged, the spen is taken out and headphones plugged in plus some other things. I went for a little bit expensive battery but totally worth it. I don't even have to charge the battery everyday like I had to before replacing it.
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I may have to try it. I watched some videos on YouTube and it looked pretty simple.

jak341 said:
I may have to try it. I watched some videos on YouTube and it looked pretty simple.
Click to expand...
Click to collapse
it was pretty easy. I did have to open it 2 more times to get it right but it was my fault. The first time a cable was loose and second time I didn't pop the power button in right so I couldn't turn off. Its all good now and definitely worth buying. It was a bit expensive but I didn't want a chance of getting a bootleg cheap one. I got it from new power 99. It came with all the tools and instructions on a DVD but I used you tube.

How much was it? I am thinking about changing my battery as well

sbattosai said:
How much was it? I am thinking about changing my battery as well
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Click to collapse
Around 65 dollars. I got from new power 99 and they have a guarantee for 1 year. I saw other samsung ones for alot cheaper but they come from china and I didn't want to get a bootleg one. I went with one a little more money and it was worth it.

Best way to use battery mods...

So I am curious how people are using their battery mods? I have a Tumi that came with my phone (swappa). I am grateful to have it though I realize it may be unneeded with the Z play. I was surprise the first time I used it to notice the phone does not sleep with the battery mod on. Is this normal? It correctly kept it at 80% for most of the day but I believe it probably wasted quite a bit of energy doing it.
Another thing I was surprised at was how HOT the MZP got when I charged it with the turbo charger. It was fast! I am curious at what cost this speed comes at. I am tempted to leave the battery mod on and charge wirelessly over night. This would be a much slower charge and possibly better for the phone's battery. I have had bad luck with batteries going bad and I would like to care for this one the best way possible. Would this be be better than just running a turbo charge for an hour each morning before leaving the house? I expect the phone will last the day without the battery mod without problems.
Anyway... I am curious to hear how others are managing their battery and using the battery mods in you have one. I am sure I can learn a thing or two. Also, any research on if turbo-charging decreases the life of the battery? I know they are designed for it, but they are also designed to last a little over a year. Moto won't be upset if I have to buy a new phone in two years. Thanks for the conversation!

Despite of what the research articles on Internet says, I have stopped plugging in my devices overnight on regular basis after I have had my share of bad luck with swollen batteries. I don't have a battery mod for my z play but I try to care for my battery as much as possible. Since phone gets charged in less than 2 hours with turbo charger, I generally charge it in day time or before going to bed. If I am at home and I am not in a hurry, I use a normal charger to charge my phone. It's well known that heat the known enemy of batteries and whenever I plug in turbo charger, my phone gets hot. Highest is 42 degrees only though ( ambient environments plays a role). As summers are approaching here, I simply switch on the fan whenever I charge using turbo charger.
Though turbo chargers are designed to charge fast acconpnained by the compatible chipset, I highly doubt that companies had some real progress in lithium batteries and they are not meant to be tinkled like that so I am a bit sckeptical regarding long term battery health when constantly used with turbo chargers.
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