I have noticed, using Battery Monitor Widget, that when in standby, my MT4GS uses more mAh than when not in standby. In standby I see roughly 250 mAh drain. When not in standby, it drops to around 150. The lowest draw I have seen was about 60 mAh and only for a minute. Interested to see what mAh others are seeing. I have seen in some other phone threads readings as low as single digit mAh. Should I be drawing so many mAhs in standby?
These readings are on a stock, temp-rooted phone with most of the bloat frozen by TiBu, including wi-fi calling. Anker battery. Wifi, GPS, Mobile data off, 4g on. Screen at 40%. Running Go as the launcher.
9/12/2011 update - Looks like I was not using the proper mAh detection method for BMW. Changed it and now looks lower when in standby. Still interested to see what others are getting, especially for those on some of the new ROMs.
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Can someone help me out here this is for an Orbit 2 less than 1 week old. I charged the device this morning so by 09:00 it was on full power. By 14:00 its down to 75%. Usage below:
10 minutes phone calls
I have my email set to retrieve from Yahoo every 15 minutes
On battery the screen is set to 50% - 75% brightness
Co-pilot has live function and traffic updates, but I presume that is only when its actually turned on and running Co-Pilot
What is going wrong?
Firstly, did you give it 3 charges of 16 hours plus? I didn't, and don't have as good a battery life of some others that did.
Also, have you got Windows Live connected and checking your hotmail constantly? That killed my battery.
Finally, I leave HSDPA switched off, as I find it chews juice without being THAT much faster; 3G is fast enough browsing and downloading for me.
Good luck, keep us posted.
I've got a HTC TyTN (hermes) and i get the same problem: my battery wears off in maximum 3 hours after i fully charge it. all the connections are turned off,except for the phone function. also, while it's charging, no matter if it's charging through the usb or the AC charger, the battery gets very hot. PLEASE can anyone help
(i have the black satin normal rom, with the 1.43.00.00 radio version installed)
I all so have battery questions. This devise was advertised as an 7 hour talk time on GSM. Compare to my T-Mobile wing witch was only 5 hour talk time.
I don't use phone a lot during day only 5-10 min phone calls and every 60 min e-mail check. And T-mobile Wing (p4350) was going for 3 days no charge no problem. And This I have to charge every day. At the end of the day i have only 60% And T-Mobile USA don't have 3G eat.
I don't get it this phone supposed have one of the best battery life out of HTC phones. And I did charge it wan i first got it for long time before i tern it on.
About chargin and discharge our phones, whe have to remember that we do not use NiCd/NiMh batteries any more.
I have some facts about Li-ion batteries!!!
Guidelines for prolonging Li-ion battery life!
Unlike Ni-Cd batteries, lithium-ion batteries should be charged early and often. However, if they are not used for a long time, they should be brought to a charge level of around 40% - 60%.
Lithium-ion batteries should not be frequently fully discharged and recharged ("deep-cycled") like Ni-Cd batteries, but this is necessary after about every 30th recharge to recalibrate any external electronic "fuel gauge" (e.g. State Of Charge meter). This prevents the fuel gauge from showing an incorrect battery charge.
Lithium-ion batteries should never be depleted to below their minimum voltage, 2.4v to 3.0v per cell.
Li-ion batteries should be kept cool. Ideally they are stored in a refrigerator. Aging will take its toll much faster at high temperatures. The high temperatures found in cars cause lithium-ion batteries to degrade rapidly.
According to one book,[35] lithium-ion batteries should not be frozen (most lithium-ion battery electrolytes freeze at approximately −40 °C; however, this is much colder than the lowest temperature reached by household freezers).
Li-ion batteries should be bought only when needed, because the aging process begins as soon as the battery is manufactured.[13]
When using a notebook computer running from fixed line power over extended periods, the battery should be removed, and stored in a cool place so that it is not affected by the heat produced by the computer.
/Krypto
BadTasteUK said:
Firstly, did you give it 3 charges of 16 hours plus? I didn't, and don't have as good a battery life of some others that did.
Also, have you got Windows Live connected and checking your hotmail constantly? That killed my battery.
Finally, I leave HSDPA switched off, as I find it chews juice without being THAT much faster; 3G is fast enough browsing and downloading for me.
Good luck, keep us posted.
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16 hours?!?!?!!?
It's a highly debated point, but it seems some who have done the old "3 charges of 16 hours" have a longer lasting battery than certainly I do.
In fact the O2 shop I bought the phone from advised the same, although I didn't actually do it!
Who knows the real best thing to do, all I know is I only get a day out of it, with light to medium use and HSDPA turned off.
Personally, I'm a little speculative of the 16 hour charge times.
I'm not gonna try to be an expert here, but aren't Li-Ion charge circuits designed such that when the battery reaches capacity, the charge cycle is complete? Ie. There is no further trickle charge to the battery? In that case, the 16 hour charge is not doing any good.
But in any case, I myself get 2 days fairly easily with about 1.5-2 hours of phone calls in an Edge area.
I am a firm believer a big difference comes from using of Standby and your signal strength. I've noticed where I go ski'in there is a very weak signal and my battery life drops to 40% or less in one day. So I think this is one major characteristic that will vary between all of us and will dramatically affect the battery life test results.
DaRacerz, you are absolutly right!
No trickle charge is applied because the Li-ion is unable to absorb overcharge. Trickle charge could cause plating of metallic lithium, a condition that renders the cell unstable.
So charging for 16 hours won't do anything.
Hey all, been on the forums a long time without much in the way of posting, but thought I would share some numbers with you all to see if others are in the same boat...
I love the Sensation, but I am highly looking forward to S-Off and rooting to get rid of Sense (Sure it's cool, but it's not THAT cool). However, I don't think that custom ROMs will help with my battery, as the major (read HOLY COW) drain on my MAh is from the Screen.
Currently:
Battery Level: 80%
Time on Battery: 3h 40m 41s
Display on: 48m 28s
Percent of Drain:
Display: 80%
Cell Standby: 8% (Time on: 3h 40m, W/out Signal = 16%)
Phone Idle: 6% (2h 51m 13s)
Wi-Fi: 4% (1h 25m 45s)
Voice Calls: 3% (50 seconds)
This is a pretty standard breakdown of my phone on a normal day by lunch.
The math itself becomes pretty easy:
Display = 80% of 20% = 16% of the battery over the course of 48 minutes (rounded down for easy math).
This means that every 3 minutes the display is on, I drop 1% of battery. That is 5mAH per minute. Mind you, this is with brightness set at 0%... When backlight is on at 100%, it goes to about 1% drop in every 2 minutes. (Unless I'm actually doing something and then i can drop almost 1%/minute)
This means to me that, if you are doing NOTHING on your phone, but have the screen turned on with 0% backlight, you will get 300 minutes, or 5 hours. That doesn't seem so bad, but if you are actually doing something on your phone (watching video, using any of the radios, etc.), you will get between 1-3 hours of usage.
This seems a little insane to me, as I am able to watch more than two full length feature films on my iPod Touch before the battery is anywhere NEAR drained.
How do these numbers stack up with what you all have experienced.
P.S. I know there are other battery discussions, but they all seem to be centered on extending battery life, which this is not. It is a simple discussion of the displays drain.
There's a problem: Your computing with 101% total Just kidding. I don't think the measurements are very accurate. For example, it showed me that 3% of my battery drain was due to the Dice application. Well, I rolled the dice about 3 times. Should not exactly drain that much... Now let me show you some other math: The Sensation battery has 1580 mah. There are various tools that will show you the current drain in ma. Dividing mah by ma leaves you with h, i.e. hours. Yesterday, I did the following: Turned on Wifi Access Point, Bluetooth, GPS, Mobile data connection, Music player, display @ max brightness and LED flash, plus me swiping the homescreens around for some time. The drain reached a peak of 900 ma. You will find 1580 / 900 = 1.75 which is already close to 2 hours for which you could do such funny things When watching a video, your power consumption will be much less (The flahs alone is like ~200 ma). I think you will get 4-5 hours with a moderate brightness setting and headphones if you're not streaming over WiFi or something. Try it out and tell us!
is it possible that "active" wallpapers are draining the battery more than "passive"?
I use Galaxy. On a 1900 Anker or the OEM, I seem to burn thru batts since the 2.3.4 update.
60% or more going to display use.
That's with Brightness at 16% and very little use during the day, 30 mins or so.
metropical said:
is it possible that "active" wallpapers are draining the battery more than "passive"?
I use Galaxy. On a 1900 Anker or the OEM, I seem to burn thru batts since the 2.3.4 update.
60% or more going to display use.
That's with Brightness at 16% and very little use during the day, 30 mins or so.
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Hi,
I would have thought that the fact that it is "active" means that it is doing something.
Therefore it will use power to do so.
Install watchdog from the market to see what processes are preventing your phone from falling asleep.
Sent from my HTC Sensation
The Live wall papers drain the battery thats Confirm. I installed that Live aquarium 3D wall paper which is so awesome but Drains my battery and gives me 30-40% lesser battery life..
I dont know why doesnt Android shutdown all processes.. On my CPU tracing I was getting constant 800Mhz usage even when the screen was off.. This proved that battery was being used by that 3D lieve wallpaper..
normal to all sensation user?
I would never, ever use live wallpapers. While many will turn off when the screen is off and barely affect the battery, others are always running, and will obliterate it. But to answer your question, yes, all phones are negatively impacted in battery life by all live wallpapers.
Even the good ones still affect battery life, oftentimes tremendously. If you're concerned with battery life, just switch to a static one.
I am using MIUI 2.2.10 with Faux kernel, and have seen a severe battery drain issue. Before when i was on stock, i had the issue where Cell Standby would drain most of the battery. When i switched to MIUI, somehow that problem dissapeared. But now, i have been using the phone for 6 hours, most of it just texting, and when I started I was fully charged. Now I am at 29%. I checked the Battery Stats and it said Display was taking up 73% of this battery drain. I have no idea what could possibly be causing this because i had the brightness on low, and yet i played music for 30 minutes and that didn't even show up on the list of things draining the battery. Could someone explain this to me?
First off how low is low?
It may not show music, it isn't that draining. Display is a big one, it will eat the heck out of your battery. Either start carrying your cable with you everywhere, or get the 3500 MAh battery.
Волк said:
First off how low is low?
It may not show music, it isn't that draining. Display is a big one, it will eat the heck out of your battery. Either start carrying your cable with you everywhere, or get the 3500 MAh battery.
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I had it on low as in the very lowest, and how much money is the 3500 mah battery?
http://forum.xda-developers.com/showthread.php?t=1148899
Here is a link to a thread about the 3500mAh Battery.
I personally think it looks really bulky and ugly.
There are other alternatives like extended bateries that fit the original phone backcover. I would check the Accessories section for more info.
Here is the link to the "better" alternative in my opinion.
http://www.ebay.com/itm/Extended-Sl...ccessories&hash=item4cfb202389#ht_1651wt_1163
.I purchased a 3500 mah battery and am loving it. I the only problem I'm having is that when. I turn off my phone, and the battery still drains... It lost 70 percent in 8 hours while it was fully powered off.... I don't know why
daygen4545 said:
.I purchased a 3500 mah battery and am loving it. I the only problem I'm having is that when. I turn off my phone, and the battery still drains... It lost 70 percent in 8 hours while it was fully powered off.... I don't know why
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Faulty battery.
The % in the Battery Stats is not how much battery is used. The screen at 73% means it was on 73% of the 6 hours which is 4.38 hours of the 6. If you add all the numbers in Battery stats it will be over 100.
IRASadPanda said:
Faulty battery.
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but the stock battery had the same problem.
I have had quite bad battery drain issues for a while, and searched BBS dump files and forums for an answer, but the logs appear normal with no unusual wakelocks. In short, the battery consumption profile is OK but it just goes too fast. So I concluded I needed a new battery and was too cheap to buy Samsung original battery and instead got a noname type (same capacity, 1500 mAh).
But it didn't help. Still 12-16 hr standby with low use (<1 hr screen time at lowest brightness).
So I tested the health of the two batteries by draining them as fast as possible. I used the app "Battery Drain" (https://play.google.com/store/apps/details?id=com.fuzzyoneapps.BatteryDrain) and drained using full screen brigtness, wifi, bluetooth, gps, CPU but NOT the vibrate function.
The results are attached to this post. As observed, there's no big difference between the two batteries. And I don't know what to expect.
So now I'd like someone else to do the same test so that we can compare the results
Basically, just 1) Run the app with all the settings turned on except vibrate, 2) make note of battery percentage, 3) leave it for exactly one hour, and 4) check percentage again. Is ~45% per hour normal for the nexus s?
Thanks in advance