any help????
my wife's battery life is so bad
I use set cpu and turn down the speed when the screen is off. My battery performance is almost equal to what I used to get from the Droid1. It'll last me all day with moderate usage,
I use SetCPU as well but I am a little more aggressive.
ScreenOff = 300Mhz
Less than 50% Batt = 800Mhz
Less than 25% Batt = 600 Mhz
I also have it set to throttle down to 800Mhz when temp goes above 50C but thats not really about Battery Life.
You really don't notice the lowered CPU at all. Especially during phone calls or TXTing.
I think the real savings is in the screen off. My guess is the stock automatic scaling is not doing a good enough job on it's own when the phone is sleeping. and most of our battery life was being blown away in standby.
With those settings I have been able to go almost a day and a half on a charge with moderate use where before even light use would only get me 6-8 hours.
And that is with a BP6 not a 7!
With those settings as your battery goes lower the longer it will take to drain. It really was remarkable.
Computer Dreams said:
any help????
my wife's battery life is so bad
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Disable WiFi or BlueTooth ..
I've found it harder than I thought to try and compile battery statistics...however, that being said, what kind of times are you guys able to get, say with average levels of use?
I think the most relevant stat is the one for screen on time, the screen seems to be the biggest killer of battery.
In my most recent use, Better Battery Stats tells me that I've been on the battery for approximately 1 day and 12 hours, and that only 5 of those hours have been for the screen on. I'm now down to 15% battery, so in general, I think that 5-7 hours of screen-on time (with the lowest brightness) is what I usually manage.
How.about the rest of you guys?
how do you work out how many hours the screen has been on?
i mostly use my flyer as an ereader during the week...i get about 4 days usage from 100% to 20%, and have airplane mode on mostly
n7of9 said:
how do you work out how many hours the screen has been on?
i mostly use my flyer as an ereader during the week...i get about 4 days usage from 100% to 20%, and have airplane mode on mostly
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I use a very useful app called Battery Monitor Widget. I highly reccomend it. Its able to split my usage between awake time, screen on time, wifi on time, and Bluetooth on time.
That sounds about right for me as well, 5-7 hours of active usage. Obviously depends on what you're doing, but I use it extensively and struggle to get more than 7 or less than 5.
veethree said:
That sounds about right for me as well, 5-7 hours of active usage. Obviously depends on what you're doing, but I use it extensively and struggle to get more than 7 or less than 5.
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Yes. So from our two experiences, 5-7 with screen-on time is somewhat standard. This is why I'm somewhat bemused when people say they've been using the battery for a week! I'm left wondering...were they using less than an hour of screen-on time each day?
If 5-7 hours of screen-on is the average, then my definition of light-to-moderate usage is when I can stretch that out to two days before recharging. Keep in mind that my 5-7 stat is with screen brightness on the lowest setting, and with Juice Defender.
battery depends on use. I have had it last 48 hours with 6 hours screen time and I have had it go in 16 hours with 3 hours screen time. With all the diferent variations of this device, as well as custom roms/kernels and GB vs HC I am not certain there can be an expected battery life span
TSGM said:
Yes. So from our two experiences, 5-7 with screen-on time is somewhat standard. This is why I'm somewhat bemused when people say they've been using the battery for a week! I'm left wondering...were they using less than an hour of screen-on time each day?
If 5-7 hours of screen-on is the average, then my definition of light-to-moderate usage is when I can stretch that out to two days before recharging. Keep in mind that my 5-7 stat is with screen brightness on the lowest setting, and with Juice Defender.
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Yes, I think 5-7 of screen-on time is about standard.
I ran my test and used my Flyer (wifi only) mostly for light work. It lasted 11 days. I mostly used it for notes, quickly checked website couple of times a day and read emails. I have played a game once for 20 minutes and another 20-30min were spent on Plex and Google Music. Screen was on for 4h13m. Wifi on for 16H.
Here is what I figured from that test:
Runtime: 10D 20H = 260H
Idle: 43%. I didn't check how many hours it said it was on idle. But let's say 250H. 43%/250H= 0.172% per hour (standby). That's 4.128% per day. That's very consistent with my observation. So, if you run Flyer for 10 days, you will spend 41% just to have it on standby. It will die in about 24 days, even if you didn't use it at all.
Screen-on (Auto brightness): 4h 13m = 4.22H. In 260H it ate 40% battery. 40%/4.22H = 9.479% per hour. So in theory (haven't tested this), you can get around 9-10 hours reading books(?).
Watching movie also puts load on the cpu and power goes to deliver sound, so I would say you will be using around 12-15% per hour. Probably around 20% per hour while streaming. A lot depends on sound level and video material. Also choice on the player and codecs used might make a bit of a difference.
I get about 4 hours of video or 7-8 hours of internet browsing / kindle reading.
a little bit comparism
mcord11758 said:
With all the diferent variations of this device, as well as custom roms/kernels and GB vs HC I am not certain there can be an expected battery life span
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agree with mcord,
it would be better instead of comparing randomly to mention :
Device Type : Flyer WiFi, Flyer 3G or Evo View
ROM : custom/ stock ROM + Kernel Info + CPUSet
Customization : or tweak or additional widget (Juice Defender, Better Battery Safer)
then the usage of application and hours spent, something like this.
Droff said:
Yes, I think 5-7 of screen-on time is about standard.
Here is what I figured from that test:
Runtime: 10D 20H = 260H
Idle: 43%. I didn't check how many hours it said it was on idle. But let's say 250H. 43%/250H= 0.172% per hour (standby). That's 4.128% per day. That's very consistent with my observation. So, if you run Flyer for 10 days, you will spend 41% just to have it on standby. It will die in about 24 days, even if you didn't use it at all.
Screen-on (Auto brightness): 4h 13m = 4.22H. In 260H it ate 40% battery. 40%/4.22H = 9.479% per hour. So in theory (haven't tested this), you can get around 9-10 hours reading books(?).
Watching movie also puts load on the cpu and power goes to deliver sound, so I would say you will be using around 12-15% per hour. Probably around 20% per hour while streaming. A lot depends on sound level and video material. Also choice on the player and codecs used might make a bit of a difference.
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Click to collapse
Device : Flyer 3G + Wifi (wasn't brand new, so i cannot figure out the previous owner flyer usage)
ROM : LeeDroid 4.1.0 HC + Kernel 2.2.0 + SetCPU scaling on smartassV2
Costum : using HC Launcher with out any additional Widgets and no additional Android apps for preserving battery
Runtime:
Screen On - Lowest Brightness + WIFI and 3G always on : 3 hours with 55 % left, mainly using on e-reader, taking notes, market access.(no multimedia usage)
I had around over 7 hours after i switch to the airplane mode in the last 7% battery left, with similar usage.
Hope this helps for utilize the battery lifespan.
I have a brand new Flyer 3G and I get about 4 hours of mixed use out of it (Airplanemode with wifi enabled, lowest brightness, 70% browsing, 30% video). I'm running stock HC 3.55.405.1 with root. No OC or custom kernel. Do I have a faulty battery? Seem like most of you get better battery life. 70% of the battery is used by the display according to battery stats. Is this normal?
metabeta said:
I have a brand new Flyer 3G and I get about 4 hours of mixed use out of it (Airplanemode with wifi enabled, lowest brightness, 70% browsing, 30% video). I'm running stock HC 3.55.405.1 with root. No OC or custom kernel. Do I have a faulty battery? Seem like most of you get better battery life. 70% of the battery is used by the display according to battery stats. Is this normal?
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If you are using it for 4-5 hours straight, then yeah that is probably normal. You might also need your battery calibrated if that is your first time. It learns and configures itself a few times after you charge it.
Stock honeycomb no root. Juice defender.
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kaijura said:
If you are using it for 4-5 hours straight, then yeah that is probably normal. You might also need your battery calibrated if that is your first time. It learns and configures itself a few times after you charge it.
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I charged it overnight and wiped the batterystats. I'm gonna use it for some days and see what happens.
---------- Post added at 07:51 AM ---------- Previous post was at 07:48 AM ----------
j510 said:
Stock honeycomb no root. Juice defender.
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How much screen-on time?
metabeta said:
I have a brand new Flyer 3G and I get about 4 hours of mixed use out of it (Airplanemode with wifi enabled, lowest brightness, 70% browsing, 30% video). I'm running stock HC 3.55.405.1 with root. No OC or custom kernel. Do I have a faulty battery? Seem like most of you get better battery life. 70% of the battery is used by the display according to battery stats. Is this normal?
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Click to collapse
If people are reporting 5-7 hours display on time, and you're getting 4 hours with 30% video, then no, I wouldn't say that that's unusual.
This is tragic. Such a great tab with such a big flaw. The iPad 2 has a 7000mAh battery and the screen area is twice as big, not to mention a much more powerful soc, and you get about ten hours use no matter what you're using it for.
Gotta be a bit more fair in your comparison. That was like comparing a house cat to a bobcat.
In all 7" tablets (including non-androids), I feel that right now the contender is the the express/flyer is the only one that reigns on top for the past year, and can't be beat for only ~$250 in today's market. The only thing the A100's have going for it are the AOSP experience, the Xoom is a direct competitor.
But if you want to compare battery life, the tf101 and prime as well as A5/A6's got this beat by a mile. Not to mention higher resolutions. Point is, these are arguments extraneous of a 7"incher tab.
kaijura said:
Gotta be a bit more fair in your comparison. That was like comparing a house cat to a bobcat.
In all 7" tablets (including non-androids), I feel that right now the contender is the the express/flyer is the only one that reigns on top for the past year, and can't be beat for only ~$250 in today's market. The only thing the A100's have going for it are the AOSP experience, the Xoom is a direct competitor.
But if you want to compare battery life, the tf101 and prime as well as A5/A6's got this beat by a mile. Not to mention higher resolutions. Point is, these are arguments extraneous of a 7"incher tab.
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Yeah, I guess I was a bit unfair. I'm just a bit disappointed.. Expected a little more juice from the battery. Anyway, for 2500NOK(about 450$) it's not a bad deal. Btw the pen is included in Norway(and other European countries, I think). And the pen is the reason I got the flyer. It's almost as good as using a Wacom board for drawing. I just hope HTC doesn't abandon the flyer or have done so already. It would be nice with ICS.
metabeta said:
How much screen-on time?
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I knew I forgot something!
Rooted View, Gingerbread, GoLauncherEX. I disable the cell radio on each boot.
-About 33% screen brightness
-WiFi on
-Sync on
-Cell radio off
-Bluetooth off
-Location off
My View gets unplugged from the charger each morning, rides ~12 miles to work through non-WiFi country, sits on my desk at work and gets used maybe 60 min total at work, then goes home with me and gets occasional to moderate use browsing and reading mostly. By the time I go to bed and plug it in around midnight I am usually at about 20% battery. Less if I've been gaming a lot or watching video.
So all together my View is on battery for about 16 hours a day but only used 3 or 4.
I went on an overnight trip a few weeks ago and by turning WiFi off when I was on the road the View maintained battery life well.
sometimes battery percentage always stuck at one point for example at 65% or 85% and not moving when charging(phone on) if i restart it and suddenly it goes up to 99% is that from rom or need battery calibrated? or does my battery is damaged?
how long your battery last when playing 3D game or wifi browsing on airplane mode and every radio turned off + brightness on 5%?
already undervolt at minimum in dodova kernel with max speed at 1.2 ghz but the phone still get warm when playing 3D game near the camera,if i underclock it at 1ghz or maybe 800mhz will it save significant battery and reduce heat?
amdultra said:
sometimes battery percentage always stuck at one point for example at 65% or 85% and not moving when charging(phone on) if i restart it and suddenly it goes up to 99% is that from rom or need battery calibrated? or does my battery is damaged?
how long your battery last when playing 3D game or wifi browsing on airplane mode and every radio turned off + brightness on 5%?
already undervolt at minimum in dodova kernel with max speed at 1.2 ghz but the phone still get warm when playing 3D game near the camera,if i underclock it at 1ghz or maybe 800mhz will it save significant battery and reduce heat?
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Dude, first of all, I'd suggest to stay away from under volting anything as it severely affects performance and life span of the hardware. It needs a lot of testing to get it correct, else it simply damages the hardware. Yes you may get more battery life but it wouldn't be a huge difference as per stock.
As per your first problem, simply calibrate your battery using battery calibrator from the market. Do this with defaults volt values.
As for 3d games, yes mine too gets hot but that is due to the gpu as well, so underclocking only the cpu won't help. And if you underclock both of them, then it will affect gameplay.
My phone lasts for at least four hours with mobile network on, but that is because I am using a 3460mah battery, not the default one.
thank you for answering
i just want to play 3D game above 2 hour more i will calibrate my battery and trying to underclock than undervolt it to 1 ghz , on 1.2 ghz is still play gta 3 all max with smooth framerate
hey
i start webbing the net and set the brightness to half sun [30% or 40%]
and got that leakage
2% of battery for one min of webbing very high
i played a bit with the brightness and it went down
i test it at power saving gov'
0% bright = 150 mA
100% bright = 350mA
very abnormal no ?
here pics with battery drain
edit:
using global FW
suil's sense4.1 rom
the transistor of the screen is not functional well ?
350 mA is pretty low actually, although I measure with Battery Monitor Widget by 3c.
Can you get GSAM Battery Monitor and post the results?
Sent from my HTC Rezound using Tapatalk 2
thx for reply i did the same test now
and still got 2% for min even on 0% bright
It's not screen, it's CPU using much current. Flash custom kernel and limit cpu max freq. and you will see much better battery life. I managed to have 6hrs of display on time while reading with same rom and funky kernel and cpu set to 500Mhz max in airplane mode
Summer has arrived, the battery temperature has been around 38 °, because of the thermal engine the charging speed is only 2000 + mA, under normal it should be 4000 + mA
version:Android 13 beta 2
Thermal throttling of battery charging is a safety feature. I recommend not trying to override it.
Azusasen said:
Summer has arrived, the battery temperature has been around 38 °, because of the thermal engine the charging speed is only 2000 + mA, under normal it should be 4000 + mA
version:Android 13 beta 2
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Click to collapse
yeah if you disable thermal throttling and let it charge fast the battery will degrade faster because of high heat. If you really want to charge fast while not destroying your battery you could buy one of those Black Shark coolers for around $30, I got the funcooler 2 and my temps went from 38-40 down to around 17° (it'll be even cooler if you leave it running for a while). For a more inexpensive option you could just put an ice bag on the back of the phone