Motorola Atrix and Canadian Winters - Atrix 4G General

Im a wireless technician and when I need to climb a tower I tend to leave my phones in the truck (work phone is a S2). After a couple of hours of the phones being in sub zero temperatures, the Atrix loses about 60 to 80 percent of battery. Well, thats what the OS is telling me. It will continue to work throughout the day at 1 percent. If I charge it from that point forward it wont charge past 70 to 90 percent. Depending on how long I used it at 1 percent. Only way to fix it is remove the batter after it has been in the charger all night and put it back on once the question mark is there. And I need to do this almost every night. If I leave the phone for 30 minutes it might drop 10 to 20 percent. But just enough to mess up.
This doesnt happen with the S2. It does drain faster but it is not noticeable. Anyone else notice this? Oh and my Atrix messes up big time in the humidity so I have something to look forward to this summer.. I doubt the phone will last long enough to get ICS.
And something else I noticed. After I pick up the phone after it has been in the cold for a couple hours I will check SetCPU to see what my cpu temperature is at. I have never seen it below 18 C. Makes me wonder how accurate it actually is. If the phone is room temperature at idle, my CPU temp will be 39C. I bet it is actually only at 25 to 30 C.

I first saw this behavior when I took my Atrix camping in December. The phone was at 95% when I turned it off at night, and in the morning when I turned it on, it was at 40%. Another guy camping with us had an iPhone with a similar drop, but I don't know what his percentages were.
This weekend I was in Utah skiing and fully experienced what you are talking about...the phone was on the charger all night and it would only go to 70%. I pulled the battery and after the restart it was at 99%. This was in my heated hotel room and not outside.
I think the cold weather in general causes batteries to go crazy. Have a read:
http://batteryuniversity.com/learn/article/discharging_at_high_and_low_temperatures

I have the exact same thing happen to me as the OP and it has been happening for a long time even after i got a refurbished atrix so it is definatly something to do with the battery and not the phone itself. Damn cold Canadian winters
Sent from my MB860 using xda premium

Ratchet556 said:
I have the exact same thing happen to me as the OP and it has been happening for a long time even after i got a refurbished atrix so it is definatly something to do with the battery and not the phone itself. Damn cold Canadian winters
Sent from my MB860 using xda premium
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Hey we can't complain. Its very mild, well here anyways. And I love wasaga. Best may long weekend place to go!
And as far as the issue.. I have noticed it with my iPhone but once charged it was always go to 100 percent. Sucks that ours really messes up.

There is a wealth of information about lithium ion batteries if you look for it. They perform better in colder temperatures. They self-discharge slower in colder temperatures. Their lifecycle degrades slower in cold temperatures.The only real drawback is that the need to be warm to pass full current, so an extremely cold battery might not power your device properly until it warms slightly. If you let your battery discharge all the time it will severely decrease it's lifecycle, as lithium ion does not cope well with this.
NASA requires that their lithium ion batteries perform to -80C.
Remember that the batteries also have protection circuitry for safety. This may be set up in the Atrix batteries to discharge rapidly under certain circumstances.
I believe you can get a rapid discharge though if you go from an extreme cold temperature to a very warm temperature quickly, which could be the case if a phone sits in a truck all day at sub-zero temps, then you jump in, start it up, and start cranking the heat.
http://batteryuniversity.com/

Never had that happen.
Had the temp down to 12 C on the phone.
It did get a little hot during the summer months.

g2tegg said:
Hey we can't complain. Its very mild, well here anyways. And I love wasaga. Best may long weekend place to go!
And as far as the issue.. I have noticed it with my iPhone but once charged it was always go to 100 percent. Sucks that ours really messes up.
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Living here you come to know that May long weekend is the WORST time of year because the majority of tourists are jerks! Fun to watch them get arrested though Right now its cold as hell. And yea it kinda of sucks, no matter what i do i can't make it read 100% it just goes up to that on its own sometimes. One time i had my battery last 3 hours sitting at 1%.
Sent from my MB860 using xda premium

I've had my atrix shut off on me while skiing a few times. Get home and plug it in and it has plenty of juice...just cant push out enough current to power the phone properly.

My phone sits in my work truck all day (since its not intrinsically safe) and even when the temp is well below zero it never fails to come off the vehicle dock without a full charge just that sometimes it thinks 40% or 70% is a full charge fixed it pretty much the same way as you guys described. Other than that in low temps the touch screen responsiveness is sometimes an issue and ocassionally the external sd card wont show up until it warms up. but overall a reliable phone considering the abuse it takes. wonderfull build quality from motorola as usual.
However... I think heat is a bigger issue as I managed to melt my first vehicle dock this summer when it hit 34C in Calgary. The suction cup and part of the stem remained on the windshield but luckly the phone fell to the floor in the shade.
Really surprised I haven't seen any pix of melted atrix on the internet unlike the S2 & Iphone4

Related

Battery heats up...

I just had a couple of longish calls in a short period. Both averaged about 30 minutes or so.
The phone is HOT. It is hot on the screen and battery side. This is not the first time the phone as started to get warm after long use.
This has never happened on my Raphael. I had it happen the other day while I was using the GPS a lot too. This seems like a very bad thing to me as heat will destroy the battery and possibly chips.
Hmmm....supposedly from the HTC site:
Why does the phone heat up when I’m charging the battery or when I’m making long duration calls? more
It is normal for the device to heat up during charging. After charging, it will return to its normal temperature. It is normal for the device to heat up when you are using the same function for a long time, such as making long duration calls or recording a long video clip. Please rest assured that all HTC devices are factory tested before released. Was this helpful? Yes | No
(I say supposedly because only way to get it was using Google Cache...the page didn't pull up from the link.)
But this isn't 'warm' like I would expect from a battery...this feels hot, like when I tell someone not to put laptop on their lap because blocks vents...and then have them put hand on their laptop. That kind of hot.
Install System info widget and check the temperature of your battery, should be at 98F - 106F
I've had mine get too hot a few times. I'm assuming that's what this means, but when the phone is hot, I see the led indicator light alternate flash between green and Orange. I've taken out the battery and let it cool down and then everything was normal again. I'm beginning to agree with other people that I don't like this phone. I never had this problem, or any problem, with my Samsung moment. If this crap continues with this phone, I am giving the Samsung epic some serious thought. People have ranted and raved HTC phones. The Evo being my first one, I'm not very impressed with it once I played with it for awhile. Yeah, the specs looked impressive on paper but in real life, I don't care too much for it. I guess I will wait and see what happens.
Sent from my PC36100 using XDA App
Any idea why the phone would get warm when screen is off and you have no background apps running? I get this at work amd im sure its not caused by signal searching Im outside all night
My phone shut down from heat today.
I got into my car, turned on gps and bluetooth, put the phone into the mount, and started navigation. Sure enough, the thing shut down in about a min. The car and the mount were kinda hot too.
I had to take off the silicone case and point 1 air vent at the phone, to get the temperature to a pretty cool 31C (with charging at the same time).
On its own, I haven't seen the battery heat up, especially when the screen is off.
Perhaps that batter is defective, or you have a rogue process that's running the battery down.
How fast does your battery drain when it heats up, and normally?
The normal speed for draining the battery with the screen off is about 1% per 1 hour.
Covers, cases, holsters, in your pocket, being in a hot car (even not in direct sunlight), etc. Pretty much anything that can keep the heat from escaping the phone or add to the phone's temperature.
I hope cyanogen can be a miracle maker with the custom rom he's making, because this phone's quirks are getting on my nerves. Yeah, it's past the 30 day return deadline.
Sent from my PC36100 using XDA App
herbthehammer said:
Covers, cases, holsters, in your pocket, being in a hot car (even not in direct sunlight), etc. Pretty much anything that can keep the heat from escaping the phone or add to the phone's temperature.
I hope cyanogen can be a miracle maker with the custom rom he's making, because this phone's quirks are getting on my nerves. Yeah, it's past the 30 day return deadline.
Sent from my PC36100 using XDA App
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Which other phone can run 1Ghz processors and not overheat under full load and inside a case?
I think common sense tells me I should have expected that.
I get pretty good battery life from my evo. 20 hours of moderate/high usage took me to 30-40% but I work in a pretty well air-conditioned ambulance and drive around with my phone in my lap most of the time or in my pocket on occasion and when I pick it up sometimes the screen and back cover are warm. I look at battery temp and its like 32-36 degree celsius idling like that
Edit: phones naked btw no screen protector or case for now
After a couple hectic days of ebook reading and killing my battery my phone was getting hot like really randomly and when I had the screen on for like 10 mins or more, or when I charged it or pretty much if I even looked at it wrong! On a side note I have it in the body glove case from Sprint. Also my battery life was horrible. I was going down to like 30% in like 7 hour of practically no use.
Now I was running completely stock and unrooted( I hadn't felt the need to root yet) My solution was I rooted, installed DC rom then and I believe this is what fixed it cleared my battery stats from the recovery menu. Bam my phone hasn't even gotten warm since. Also it's been a week since I did this, and I'm getting crazy battery life now( like I'm down to 70-80% in 7 hours now with light use)

[Q] Does battery get better after a day? If not, what can I do?

So I got my G2 yesterday at about 4:30. I LOVE it, absolutely (a bit of a weak hinge, and I had a random reboot and trouble starting WiFi at first, but it's seriously fantastic). But I'm having problems with the battery. At the store the guy turned it on and handed it to me, and I used it on the way home to the point that, by about 1.5 or 2 hours after turning it on the first time, it was at about 15% battery. So I started charging it, and then read an article online that it should be discharged, so I unplugged it after it went up about 4 or 5% in battery life to 16% and used it a bit more to drain it all the way. Then I read a different one saying you should never discharge it because it's Lithium Ion, and so I turned it off until I could get to the charger and then charged it and left it charging until I woke up at 6. Then I unplugged it, used it for about 20 minutes in the morning, and turned it off. I turned it back on at 3 today, used it mildly (Angry Birds, an emulator, and the camera, but couldn't get data access except very intermittent EDGE, no Wifi or GPS enabled) until 4:10, and noticed that it was at 65% battery life. The screen is on automatic brightness, and I have animations and a live background, but those are my only concessions. It said 45% of battery use was Android and that was the highest thing, I think display was only second or third (unlike my parents' Vibrants where it's like 66% display).
So that's 1.5 hours for a third of the battery, with moderate usage (I would argue that no data or GPS or wifi or internet usage at all is very moderate). So, on average, I could expect to get 4.5 hours of battery life? At one point it went from 55m unplugged to 1:07 unplugged and the battery went down about 10%. That's worse than my parents' Vibrants, and they say they didn't do anything to train their battery--and I've seen reports, especially on here, of people getting 10 or more hours of use with more usage than I had. I know you train Android and not the battery, but still, I have seen SUCH conflicting information on this that I don't even think it'd be helpful to search anymore (and trust me, I have). So does anyone know about this, definitively? Does the battery life get better after I charge it and discharge it for several days? Should I let it go down to a full discharge or keep it above 35-40%? Does it harm it to keep it plugged in after it finishes charging, or does it have a thing to stop charging the battery and just run off AC once it reaches 100%? Is it too late to train my battery now? Are there any official or reliable large-capacity ones for the G2, like a 1750 mAh?
Thanks,
Rocky
Don't trust the battery meter. Fully charge your phone up, and it runs for forever. I've gone days where I unplugged it at 7:30 AM, and didn't plug it back in until 5:30 AM, and the battery was still above 20%. That was a day of fairly light usage, so that's not necessarily typical; with my normal usage (which is somewhat heavy), it's at about 30% by the time I plug it in at around 10:00 PM. The only time this isn't true is when I go for hours on an Angry Birds marathon :S
I have noticed on all my android phones that the first couple charges seem to drop much faster and each subsequent charge seems to get better. I run mine all day with push work email and vibrate all day and am upset when it is below 65% at 10PM and I unplug it at 7:30 am each day.
But did you guys do the same thing I did (15% then charge overnight) and then get around the same life, on your first day? Is it likely my short charge the first time did any damage? And are there any apps to provide a more accurate battery meter, preferably in place of the stock one?
Thanks,
Rocky
I did nothing special. I put it on charge when I got it but did not do a full charge before leaving work and going home. Did a full charge that night.
I plug it in each night when I go to bed and it has been as high at 70% and as low as 30% depending on how much phone and data time I spent that day.
I unplugged mine today at 7:36am and at 4:06PM it is at 79%.
I use battery indicator from the market. It does not poll and only listens for the OS battery change broadcast so it does not use up battery by running. Some poll and as such use battery to report.
The general thing about Lithium Batteries is that a full discharge is bad if the voltage level goes below a certain point to where the onboard circuits will disable that battery permanently. Most of the time the boards only do that if it's left discharged for a long time I believe, correct me if I'm wrong here.
Ideally, you're not supposed to turn on the phone when you got it. You were supposed to charge it till green and then you could use it, but I'm pretty sure not everyone can resist the temptation to turn on such an awesome phone . The battery life will blow the first week of use. I don't know why, but it just does; you'd have to break in that battery. Then the general rule I follow is to perform a full discharge once a month and then do a full recharge.
I also placed my phone on GSM AUTO PRL but for doing that I just exchanged some low 3G signal threshold for Edge; the extra battery life I got though is just that much more useful to me. Using WCDMA Preferred, the phone just wasted so much
To answer your questions, my experiences with the N1, Vibrant, and G2... battery life just blows in the beginning but gets better with use. The first charge you did shouldn't have damaged the battery but I think you may have wasted 2 of the possible 400-500 cycles that battery is capable of doing what you did. Finally, I use BatteryTime by Motalen for the status bar battery indicator which shows the % left.
Yeah, it just sucks because the guy at the store literally put my SIM card in and then turned it on and handed it to me. I probably wouldn't have turned it on until it had charged if he hadn't, or at least I like to think so.
So it's good to do the discharge thing once a month, and probably not bad for the battery to let it dip down as long as I don't prolong it too much? And I'm okay to just charge it and use it during the day, basically, from now on?
Does battstat poll the battery or just listen?
SeReaction said:
The battery life will blow the first week of use. I don't know why, but it just does; you'd have to break in that battery. Then the general rule I follow is to perform a full discharge once a month and then do a full recharge.
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Nonsense. The battery runs down fast the first week because you got a new toy and you can't help playing with it all the time. After a while the novelty wears off and you use it a lot less. The battery doesnt just magically get better
grennis said:
Nonsense. The battery runs down fast the first week because you got a new toy and you can't help playing with it all the time. After a while the novelty wears off and you use it a lot less. The battery doesnt just magically get better
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See but if that's true then I can only expect 4.5-5 hours of battery life which is not what the G2's supposed to get. Which means either I DID mess up my battery instead of just running through some cycles, or I have a bad one, but not horribly bad, just for some reason only like 60% as good as everyone else's. I do agree about the novelty thing (it's my first smartphone), but understand I was not really doing all that much when I drained my battery like I said. Not nearly as much as it should take.
aacrabtree said:
The only time this isn't true is when I go for hours on an Angry Birds marathon :S
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Those damn birds aren't content to kill pigs; they have to go after our batteries too!
grennis said:
Nonsense. The battery runs down fast the first week because you got a new toy and you can't help playing with it all the time. After a while the novelty wears off and you use it a lot less. The battery doesnt just magically get better
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I'm hoping that's the case. I remember receiving my N1 and I got to relive my childhood days for 12 straight hours. Regardless it's pretty sad to say that I leave my G2 at home while at work and it's down from 100% to ~60% with Wifi on (and with it staying on in the advanced settings) and GSM Auto PRL; I work a 8 hours shift. I left my N1 at home to mess with my G2 at work and my N1 went from 100% to ~80%.
Those 100 extra milliamphrs shouldn't do that much of a difference. Not to mention the N1 is slower and on a 65nm process. Did I also mention that both my G2 and N1 run the same services and 3G is also disabled on my G2 since I don't have my new SIM activated yet? Also, Latitude is always on for my N1.
It's just my experience though. I'll give this a good thorough test when I get the time. That or pony up for an extended battery.
On the other hand, my wife's GalaS is doing just fine in terms of battery life. Matching my N1 with the same settings and services.

Battery readings on the s4

I think there's a serious issue with our phone's battery readings. Today I took the train at 8 am since boarding it have been using it, I also used it for 5 minutes before, it is now 846 am yet it shows screen on time of 30 minutes. Also when you restart your phone something goes wrong and the stats are totally wrong. Look at your stats now and reboot u will see that your screen on time is less than what it used to along with uptime.
Sent from my GT-I9500 using xda premium
I believe my battery isn't also what it should be. The thing is that it keeps overheating, which is much more power consuming. Not necessarily too hot, but hotter than I would expect it to get.
Most of the time around 32-35 Celcius, which in comparison to my constant overheated S2 is about the same temperature, but the S2 was busted, this is brand spanking new..
Even after flashing several roms, the phone still gets quite warm, which isn't so bad most of the time, but can get quite annoying when I have to make a call or something, and the phone is burning my ear off.
I guess it is something I have to live with until the next phone, but it would be nice if anyone could tell me a way to decrease the temp for just a little bit.

Nexus 6p Cold bug

Seems the Nexus 6p has a cold bug. First phone i seen this in.
So i been doing some overclocking and bench marking on a few devices. The Nexus 6p has shown some strange behavior. When i had the phone chilled and ran some benchmarks the battery would drop drastically. Restart and all that did nothing. The batt. stayed at 39% for about 2 hours with some heavy use. Charged it back up no issues. Did it again and it did the same thing. Took my turbo 2 to an even lower temp and that was fine it did not have this.
Something you have to worry about? Nope not unless you are out in Alaska or taking a trip to the artic circle. However if you do this could cause you some issues.
Tested on a stock room and kernel. As well as a purenexus and elemental x combo. Same outcome.
Again not really an issue. And the Nexus camera visor and display survived the -40c freeze and back to room temp test. Attached is a pic of the massive drop
Not sure why the Droid Turbo didn't demonstrate this same behavior, but extreme cold temperatures definitely have an impact on lithium ion batteries. Perhaps the material of the Droid Turbo insulates the battery a bit better than the aluminum on the 6P?(pure speculation there - science geeks, feel free to rip that one apart)
I've experienced the same thing with my DSLR (Nikon D80) when shooting in the cold.
Sent from my Nexus 6P using Tapatalk
Devhux said:
Not sure why the Droid Turbo didn't demonstrate this same behavior, but extreme cold temperatures definitely have an impact on lithium ion batteries. Perhaps the material of the Droid Turbo insulates the battery a bit better than the aluminum on the 6P?(pure speculation there - science geeks, feel free to rip that one apart)
I've experienced the same thing with my DSLR (Nikon D80) when shooting in the cold.
Sent from my Nexus 6P using Tapatalk
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Yeah the turbo 2 was even exposed to cooler temps longer. And its not that the capacity was lost. After the bench it would stay at that + for a few hours before it started going back down. So when i started at about 74% after it still had 74% less just android was saying that it was lower. I still managed to get a full charge out of it. Not an issues just a omg my batt is almost dead. Fallowed by omg my battery has been at this % for a few hours.
-40°C isn't really common weather and is definitely out of normal range of temperatures. I live in a area where it gets cold (-30°C) during wintertime, I don't really use phone in a such coldness (my fingers would freeze pretty fast anyway.)
I once answered phone in -25°C (current phone at the moment was Sony Ericsson W910i) I talked for 15 minutes and my battery went from 100% to 21% and shut down moment after the call ended.
Don't all batteries exhibit fluctuations in total output in extreme situations high or low? I use an iphone in a work truck that is left outside in 20f to 30f temps and that thing is crazy swinging from 100% charged when I leave it in truck to dead in one night in cold temps.
Sent from my Nexus 9 using Tapatalk
is there a particular reason you guys do this stuff?
Soulfly3 said:
is there a particular reason you guys do this stuff?
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So we don't have to.
As an aside, the phones operating temp range.
http://imgur.com/aR9JMk7
JoshuaMh said:
So we don't have to.
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Why would we 'have to'?
Stbrightman said:
Why would we 'have to'?
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Perhaps gives an endurance threshold for those of us hiking in Alaska, or climbing an icy peak, ect.
Stbrightman said:
Why would we 'have to'?
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I think it was a funny
Sent from my Nexus 6P using Tapatalk
My nexus 6P sorta died on me today, it was stored in my GF's bag, we were outside, 0F, for like an hour. When I go to take my phone, won't turn on, tried plugging it in, nothing.. could the cold weather (not so cold) have killed my nexus 6P ? Anyone has had this problem ?
I live in northern Finland and I have experienced this kind of behavior with my 6P lately. The battery dies suddenly under -10 C degrees if I keep it in my pants pocket. This is daily problem so have to wear my phone in wool mitten and then pocket it.
I think this started right after 7.1 update. My phone is 12 months old so it might be the battery losing its best edge or simply software feature/bug.
The battery model uses inputs from current flowing in/out in the battery, outter voltage and battery temperature sensors and calculates Open Circuit Voltage leading to the estimated State Of Charge (by use of a 3 degrees polynom)
As any resistor, the internal battery resistance will vary depending on temperature. So will the OCV calculation.
All these parameters are linked non linearly and the models are done within temperature ranges (different coefficients for say different temperatures). If temperature exceeds thresholds ( /sys/class/power_supply/bms shows a nominal range of [10 degC, 45 degC] ), the SoC will not be computed.
If temperature exceeds thresholds or SoC varies too widely, the battery current will be downlimited, meaning it won't charge as expected or could shutdown for safety reasons.
If battery temperature goes under 5 degC, the SoC is considered invalid.
As such when starting again the device within this range the SoC will be calculated again correctly and the device will stay on.
There are also high/low safety thresholds which will instantaneously shut off the device (I think they are stored in the Qualcomm IC so I can't see these values).
So while the battery can probably work fine under 5 degres C, the SoC won't be calculated properly. You can also get some feedback from the known battery health in /sys/class/power_supply/battery/health (Good, Dead, Warm, Cool, Cold, Overheat, ...)
I've gathered this information from the Qualcomm IC driver source
Sound like a Overclocking CPU with Liquid nitrogen haha.
This just happened to me today. I was out skiing and temps were -10 f. Phone shut off in less than an hour after starting from 100%. Went back inside, warmed up the phone and the battery was stuck at 39%. I moved my phone to an interior pocket closer to my body and didn't have a problem for the rest of the day.
As a avid skier, I can say I've always had extreme cold weather issues with phones, but the Nexus 6p is definitely the most severe.
FYI I'm on 7.1.1
This happened to my Nexus 6 today. I was in the garage (non heated) working on my car and had my phone sitting on a box next to me. It was about 30°F and I grabbed my phone to send a picture of something to my friend. As soon as I launched the camera it shut down. It booted instantly after pressing the power button, but after being on for about 15 seconds the battery percentage displayed in the status bar suddenly went from 51% to 0% and it shut down again. After bringing it inside to warm up my battery was back to 50%.
I've also taken my phone snowboarding in much colder temperatures and never had this issue. Even while using it on the chair lift where it's directly exposed to the cold and wind it's never shut down.
The only thing that has changed between past usage in cold weather and today is the version of Android I'm using. Unfortunately I'm too lazy to revert to 6.0.1 to see if that solves the issue since I just did a clean install of 7.1.1 about 2 days ago...
What count is the battery temperature not the ambiant one. You can use "cool tool" or wharever app to display that. If you're rooted you can even check the health file I mentionned (to see if it's Cool or even Cold from the model perspective).
The are linked by discharge rate.
The theorical unusable capacity will increase at low and high temperature but also with discharge rate. So if you are at these extreme temperatures, you could try to lower the discharge rate as much as you can by disabling all what you don't need (sync, lte).
Anyway at -23 degres ambiant your battery was maybe at -10 which is outside of its theorical range. We don't know the practical performance at these temps. I'll have to check again to confirm the low temp threshold at which the SOC is not calculated (think 5 degres that is ambiant 0 or -5). Could be that the battery is ok but the software lacks a lookup table at these ranges. There could be a reason. Anyway, I would try to preserve the battery from these temp if you can.
I have the same issue - but in +3 or +4C degrees. The battery went from 60% to zero in 15 min.
NotEnoughTECH said:
I have the same issue - but in +3 or +4C degrees. The battery went from 60% to zero in 15 min.
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Ambiant or battery temperature? If the former, you'll need to know what the battery temperature was. That's the only thing that matters here. I guess you were talking about ambiant so the device once switched on could be at like 8 degrees so I'm surprised about your results.
I use Cool Tool but you can also use any other app like... Battery. What's relevant is battery temp AND battery health (Good, Cool, Cold ).
I've just put my phone in the fridge for some testing. Should be around 4 degrees also

Are these battery numbers normal nowadays? Need opinion/comparison with other users

Help me out here, I think my G2 which used to be a battery champ is now absolutely awful. I don't really know if it's the phone going wrong or my different usage and the way apps might have evolved.
I think the phone is also heating up way more than it used to do. In fact, I never used to notice the phone getting warm at all and never knew what people with SD810 phones were talking about. If I happen to run a game like Boom Beach or Fallout Shelter for 5 minutes, not only the battery suffers a huge drop, the phone gets almost uncomfortably hot (*). These games can kill the battery in 1:30 hours of SOT which I think isn't probably normal.
The numbers I now have to show are of the phone fully charged last night before going to bed, turning the phone off and then turning it on to clean running ups, etc and left idle while sleeping.
Went to bed with a full battery at around 4:30 AM and it's now 15:46 and battery is down to 64%. Turned the screen at 13:00 to see notifications and browse through news, made a single phone call that must have lasted less than 10 minutes. Pictures, although I think they won't help much except for the SOT:
I bought this phone used and I think it was refurbished. Came from Spain (I'm in Portugal) and happens to be an AT&T version. Screen was always a bit dark and a panel that I believe has been replaced. I think the screen is also going, sometimes it won't respond to touches on the far right edge.
I have it running on the official Lollipop firmware that I manually flashed (no OTA here) but I've tried different ROMs to see if they make any difference (Cloudy 2.2 and 3.3., CM13 and Blisspop Marshmallow). They don't, battery behavior is the same, phone heats up.
I need to know if this is normal for you guys still using the phone (software evolves and maybe things are more demanding on this old phone) or if something is wrong with mine. If it is, I need to think about sending it for repair (probably not worth it) or get a new one.
Not the best of times for me to be spending money on stuff like this but I'm really starting not to trust this phone, carrying the charger with me all the time and have a nasty suspetion screen might die for good one of these days.
Any feedback much appreciated!!
(*) Gets hot mainly on the top back, near the camera lens. Sometimes screen gets also hot but I think it might be due to heat transfer from the back.
I would replace the battery. Li-on batteries typically don't last for more than two to three years. Useful life span depends on how deep the average usage cycle is. I typically try to keep them from going below 40%. An old battery that no longer holds a good charge can cause similar problems. Most rechargeable batteries, including lead-acid automotive batteries in general, suffer from deep cycle charging.
My $0.02
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SofaSpud said:
I would replace the battery. Li-on batteries typically don't last for more than two to three years. Useful life span depends on how deep the average usage cycle is. I typically try to keep them from going below 40%. An old battery that no longer holds a good charge can cause similar problems. Most rechargeable batteries, including lead-acid automotive batteries in general, suffer from deep cycle charging.
My $0.02
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Yeh, I know...
I tested it a bit more and at least now I know it is definitely draining way faster than it ever did and I don't see anything that is especially killing the battery (kept off games that I don't even play so much anyway). Oh well, time for a new one I guess. I have been postponing buying one until all these new 2016 main phones came out and they are all pretty much out already.
After running certain apps, or sometimes after connecting to USB in the car, the G2 will go into an overheating condition, with the battery charge rapidly falling. I just reboot it to clear it, and it's back to normal.
SofaSpud said:
After running certain apps, or sometimes after connecting to USB in the car, the G2 will go into an overheating condition, with the battery charge rapidly falling. I just reboot it to clear it, and it's back to normal.
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Tried that, even made two more factory re-sets. No good, same results... poor thing is going, I'm already convinced of that. It's draining about 1% per minute with screen on, regardless of what I'm doing. About 12% drain with it just sitting on my night table for 6 hours while I was sleeping.
Trying to find a replacement now which is driving me insane.
Kutusov said:
Tried that, even made two more factory re-sets. No good, same results... poor thing is going, I'm already convinced of that. It's draining about 1% per minute with screen on, regardless of what I'm doing. About 12% drain with it just sitting on my night table for 6 hours while I was sleeping.
Trying to find a replacement now which is driving me insane.
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Well, replacement batteries are a lot cheaper than phones. Why not replace the battery, and squeeze a little more life out of it? Would also serve as a backup phone after you do get a replacement.
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SofaSpud said:
Well, replacement batteries are a lot cheaper than phones. Why not replace the battery, and squeeze a little more life out of it? Would also serve as a backup phone after you do get a replacement.
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I'm pretty sure battery isn't the only thing going bad, screen sometimes doesn't respond or respond weird. Mine is already a refurbished unit that I bought because it was the best, cheapest and quicker to get phone after drowning the one I had before. It's not factory refurnished though, some guy in a shed did it. Worked very well until now though but I prefer just to get something that is new instead of paying for the repair of one thing and having another breaking the week after that.
It's going to be either another G2 (found one that seems to be an unused unit but seller hasn't got back to me yet and it would cost pretty much the same or less than a battery/screen replacement) or I'll just get some other recent flagshipy phone that will allow me not to think about phones for at least the next 3 years. Not really sure what that would be but hey..

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