guys, i need some feedback from you regarding your battery temperature. i feed like mine gets too hot on the replacement device - but i dont have the exact values from my previous unit. im talking idle temp (phone sitting with screen off on the desk for like half an hour at least) and screen on time with normal browsing/navigating usage and outside temps of around 25°C.
thanks a lot!
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Can someone explain this? before I went to bed my arc was at 97% battery when I woke up it was 100%?
Cellphone battery meters are not that accurate. That is why on "stock", the manufacturers do not put numbers, just icons. No one has "invented" an accurate meter yet that shows exact percentage left. So don't worry about it too much.
If I am correct your percentage is also calculated by the use of your phone, so kind of like when moving a big file in windows, at the start it says two weeks and after a minuut it says 5 min remaining cause the cpu is less stressed
ive also encountered this kind of issue before because i always look at my battery widget. before i use it i look at the battery it was 30+% and then after playing it came back to 42% it was weird..
Has anyone experienced this. I used my phone heavily for about 1.5 hours at which point it said that I had about 50% battery left. i then left it untouched and unplugged for about 8 hours overnight and when i picked it up int he morning it was at around 50% still and the battery details showed this. seems like after i stopped using it, the battery started charging rather than discharging until I picked it up again.
I'm on stock with an extended battery.
I'm not complaining, just trying to see whats going on.
I've seen this happen as well when going from heavy use to no use over night or when put in airplane mode.
should ask in the Q and A forum....not development....
not only is it the wrong forum...but you will get more answer
The reason for this is due to how the phone displays battery usage statistics. You phone will periodically check the phone usage and determine battery life based on your current usage amount. So if you talk on your phone for an hour straight, during the time your phone will figure how much battery you have left based on that usage. If you then don't use it for 8 hours, your battery level indicated by the phone can actually go up, or stay the same for a very long period of time. Thats why your battery will drop very fast when you start to use it when it has not been used for a while.
It looks like the SOC (state of charge) algorithm is using the derivative of current (consumption over time) in conjunction with the open circuit voltage, yet taking little regard to cell temperature.
As current consumption is decreased, the cell temperature will eventually decrease and the open circuit voltage will slightly increase. This is where the SOC difference comes from.
This is a common problem with any SOC algorithm that doesn't precisely factor in the cell temperature. With these lithium cells being as small as they are (compared to what's used in Automotive applications) trying to characterize the cell temperature characteristics would be like nailing jello to the wall.
akilestar said:
The reason for this is due to how the phone displays battery usage statistics. You phone will periodically check the phone usage and determine battery life based on your current usage amount.
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My thoughts are right along these lines. The phone is projecting your remaining battery life based on previous usage. It is forcasting what your usage will be and with no usage over a certain time period it is reporting negative numbers which send your patterns in a different direction.
Definitely feels temp related. I used mine heavily in a real bad signal area (Restaurant with a tin ceiling...) and it got really hot. I noticed battery life down to 48%. Put it near a fan to cool off and 5 minutes later it was at 65%.
Not positive on specifics, but it has to do with voltage fluctuating.
I have had my Nexus for almost two months now and the battery life on it... well I get maybe two hours of usage on it (screen on, auto brightness) and i came from an iPhone which gave like 5 on full brightness.
All the reviews I read about the phone talked about great battery but really... When i get home everyday the battery is almost dead and i'm talking light usage.
This does not sound normal. I'm on a GSM nexus and I can typically get close to 4 hours of screen on time without trying too hard. On a typical day, I go to bed with about 50% left. Check the battery stats in settings and see if your phone is constantly awake. Sometimes rouge apps can do that. Sitting in a dead zone can also use up battery quickly. Its possible you have a bad battery, but I bet something else is causing poor battery life.
Dark lord me said:
I have had my Nexus for almost two months now and the battery life on it... well I get maybe two hours of usage on it (screen on, auto brightness) and i came from an iPhone which gave like 5 on full brightness.
All the reviews I read about the phone talked about great battery but really... When i get home everyday the battery is almost dead and i'm talking light usage.
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That is dependent on a lot of variables. You could be listening to a lot of music, preventing the phone to go in deep sleep, an app could cause a wakelock, preventing it again to go to deep sleep, are you on Stock? Do you use a dark or a white wallpaper, are you in an area with bad phone reception etc. etc.
If you could give us some more info (preferrably screenshots) we might be able to help you. Screenshots of the battery usage during the day, the apps that consume most, the diagram which states how battery usage is combined with network reception etc.
Besides that you could install CPU SPY to see how much your phone spends in deepsleep. If that isn't looking well you could install betterbatterystats to find out if there is an app causing a wakelock.
I don't listen to much music and have a black background. It is running stock 4.0.1 and for about half my day I have no service but the phone is in airplane mode at that time so it doesn't kill the battery using the radios.
I'll update with screenshots of normal usage
Can you guys list your battery voltages and temperatures of your exynos and battery during use and idle for me so I can see what the hell is wrong with my phone. You can use AIDA64 if you don't already have an app you like.
I left my phone in a very moist very hot bag by the pool. Afterwards for about a day and a half it wouldn't turn on. Then it now uses about 1 percent of the battery every 1 to 2 minutes. Maybe 5 minutes per percent while idle.
I'm trying to pinpoint whether the soc is damaged or whether I can just replace the battery. Thank you guys in advance.
So how about:
Temperature of exynos and battery during use while charging.
Temperature of battery and exynos idle
Voltage of battery at 100 percent
Voltage of battery at less than 3 percent
****, can an administrator please move this to Q&A...
skydeaner said:
Can you guys list your battery voltages and temperatures of your exynos and battery during use and idle for me so I can see what the hell is wrong with my phone. You can use AIDA64 if you don't already have an app you like.
I left my phone in a very moist very hot bag by the pool. Afterwards for about a day and a half it wouldn't turn on. Then it now uses about 1 percent of the battery every 1 to 2 minutes. Maybe 5 minutes per percent while idle.
I'm trying to pinpoint whether the soc is damaged or whether I can just replace the battery. Thank you guys in advance.
So how about:
Temperature of exynos and battery during use while charging.
Temperature of battery and exynos idle
Voltage of battery at 100 percent
Voltage of battery at less than 3 percent
****, can an administrator please move this to Q&A...
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Ive been reading up on this situation and found that the flex cables are susceptable to moisture. And easy corroded might be worth a shot to look. Have ubhad any issue charging or usb connections
Hi guys,
I couldn't find an answer around and wasn't sure where to post it so hopefully I'm at the right place. I was playing Pokemon Go today, I was outside for around 1h, it was -3C. Toward the end, when I had like 15% left, the battery quickly drained down like I've never seen. I'ts the 2nd it's happening in 2 days. 15% lasted less than 5 minutes. I'm not sure if it was because of the cold or the game itself. My gf S7 edge was still at 27% and we left the house around similar charge %.
Thanks!
It’s not a “drain” if you’re playing Pokémon, maybe try changing screen resolution.
The good news is, if you are playing in the cold, pogo will turn your phone into a convenient hand warmer.