I was just wondering what a common percentage is for the display under the battery use menu.
So far, today, the phone has been on 4 hours 50 minutes. I have an awake time of 1 hour 45 minutes. My display percentage is 76%. Brightness is turned off. The next highest % is Android system at 6%.
I'm not quite sure what numbers I should be seeing.
The display is very power hungry. Mine's currently showing Display 70% with Cell standby 6% as the next highest.
Up time 125:10:27 awake 45:16:26
I don't know if my suggestion is wrong or if I'm a total n00b or what the deal is, but what is up with the battery level issues on this phone? It goes from 100% down to 80% in like a matter of minutes even with no usage, it then drops steadily down to 50%, then it drops suddenly to 15%, then goes down to 10%, then 5%, then 1%. How can it be so hard to calculate a battery level?
Now I bet someone is going to come in here and bash my idea, and I apologise in advance if I look like a moron, but shouldn't the calculation for the battery level be something along the lines of:
((Current Voltage - Minimum Voltage) / (Maximum Voltage - Minimum Voltage)) * 100 = Current Battery Percent
If that would work (even if only a little better than the current method), can someone PLEASE write at least a widget or something that displays the actual battery level, not this inaccurate level that Samsung claims it to be, and if possible modify whatever it is that calculates it and replace it with said formula?
I tried this formula on my phone using a simple calculator (using 4.1V as my max and 3.5V as my minimum and a battery level widget to display the current voltage) and it seemed to work fine for me and it was a lot more accurate. I just wish it could be automated.
I think that's a common issue on Galaxy 3. Sometimes it's accurate, sometimes not.
I unplug it, after half an hour it's at 80%, then drops by 10% down to 50% and after that suddenly to 5%. Then I turn it off and on again and it returns to 50% or 60%.
But as I said, sometimes it's accurate, but I don't know what causes it.
I've tried some battery widgets, but they all display the same information.
That was a common issue that happens more frequently when you flash your phone without a full charged battery, when that happens i try to wait until the batery ends and wait 2 o 3 hours and charge the phone while its off until it shows full charge
Racoen said:
I think that's a common issue on Galaxy 3. Sometimes it's accurate, sometimes not.
I unplug it, after half an hour it's at 80%, then drops by 10% down to 50% and after that suddenly to 5%. Then I turn it off and on again and it returns to 50% or 60%.
But as I said, sometimes it's accurate, but I don't know what causes it.
I've tried some battery widgets, but they all display the same information.
Click to expand...
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Yes, its the same with my G3.. But it always was like that, with eclair and now with froyo.
These are the files that regulate it (its in c, but you my be able to understand some parts of it without it).
They didnt calculate it like that, but used an if..else if ...else method. and with fixed values of multiples of ten (except for lower battery).
I dunno how to compile from the sources, when I do I'll change it and send it to KARMA.
Also, sometimes when its low it doesnt show it correctly. Try rebooting if you suspect that.
I've noticed that last 20-30% stays for almoust 10h, but first 80% only 1 day.
If it was only the faulty display of the percentage I normally wouldnt even care. There are many widgets that display the actual battery voltage which gives a much better indication of the actual SOC.
BUT: what really gets on my nerves is, that when the calculated battery level drops below some 10%, the G3 reduces the display brightness, doesnt let me use the camera, doesnt let me start my music app... even if the battery voltage is still at 3.7-3.8V.
The problem seems to be (correct me if i am wrong), that the G3 calculates the battery level with the minimum of the measured voltage in that discharge cycle. So if I use some app which consumes more power, or if I have many active downloads or whatever, the voltage of the battery can sag for a short time, which also causes the calculated battery level to drop. When the phone is idle again the battery voltage goes back up, but the percentage is stuck (in worst case at a very low level).
Since a reboot seems to make the phone re-evaluate the actual SOC, the question is, if there is an app (or if someone can make an app) that forces the phone to re-evaluate the SOC without rebooting (and so also reactivates camera etc.). Even better if the firmware was modified in a way, that the algorithm for determining the battery level uses a filtered value of the battery voltage so that a short term voltage sag does not affect the calculated battery level.
Historical phone performance:
Battery usage (slide 1) – phone uses up 21% in 9 hrs incl 1hr screen-on time and 23 minutes talk-time.
Charging (slide 2) - phone reaches peak battery temperature 105F as voltage increases past 70%, then battery temperature lowers. Max charging current 1500 – 2000 millamps, decreases back to zero causing the temperature to falls. Max voltage 3,450 millivolts.
Phone is rooted and generally operates great with very few problems.
The overheating event (slide 3)
9:50pm – placed phone on charger, using phone screen
10:30pm – stopped using phone, left phone on charger (normal routine)
11:20pm – batter reaches peak temperature of 110F as voltage increases past 70% and then battery temperature starts decreasing. Everythign seems normal at this point.
1:45am – battery temperature starts increasing again and increases to peak of 145F battery temp at 2AM. Bounces around in the 140-145F range.for the next three hours
NOTE – Even though at first glance it seems like a battery/charging problem, the current and voltage behave very similar to the previous normal charge. This seems to rule out battery/charging problem (?)
4:40AM – alarm goes off and I awake and find hot phone and unplug it from charger immediately. Took screenshot (slide 7) showing battery temp 135F and cpu temp 174F. (by the way in other screenshots, cpu temp is on the far right of my notification bar, battery level is on far left of notification bar, and battery temp is 2nd from left on notification bar... the battery temp showing on the notification bar in this particular screenshot is not updated yet because I just turned the phone screen on).
From this point on battery temperature drops significantly (in response to unplugging presumably). Note that GSAM battery monitor battery stats are wiped by unplugging charger, can’t retrieve what they were before.
04:52 – took GSAM battery stats approx. 12 minutes after unplugged. (slide 4) - Battery is down to 95% already and 56% used by apps (even though I have had screen on continuously). The two apps sucking up all the juice are Lookout and Mapquest. Lookout has been on for 13 minutes which is the entire time since the stats were reset when the phone was unplugged. Mapquest only shows as being on 10 minutes at this point. I checked GPS at this point and it was definitely enabled (I normally leave it enabled without any problem). I am not positive whether I disabled GPS at this point or not. I didn’t stop the apps… curious to see how they would behave. Turned off phone screen and left it alone approx. 05:05 until..
05:40 – took GSAM battery stats approx. 1 hour after unplugged. (slide 5) Battery is down to 79% (huge drain… I normally get 9hours plus before I get to 79%). Biggest users are again Lookout and Mapquest. Battery temp is 95F (in an ambient temperature around 70F) which is high considering the phone was not being used and not being charged.
05:45 - Uninstall lookout. I may have turned GPS off at this time (if I hadn't already done it at 04:52... not sure). Reboot. After reboot I did note GPS was disabled and Mapquest was not running. Phone has operated normally since (normal battery drain, normal temperatures).
Hypothesis – Rogue apps Lookout and Mapquest? But they didn't overheat much after battery was removed from charger (even though they continued to use abnormal battery). Maybe it only overheats with the combination of both the rogue apps plus the charging?
Also, would seem too coincidentl to have two different rogue apps show up at the exact same time. Maybe at least one of the rogue apps went rogue as a result of the high temperature.?
What do you think?
Update: charged overnight the following night and everything was normal, just like slide 2.
Hi there. I have a Droid Turbo 2 (from Verizon) and after an update late last year I appear to have two conflicting battery managers. The phone shuts down at anywhere from 30% to 90% battery. When you push the power button to see the battery level indicator, a white screen with a vertical representation of a battery shows with the battery completely drained. This shows for about 2 seconds, then it goes away and a black screen appears that shows the current actual battery level as a partially drawn blue circle and says "Turbo" I believe at the bottom of the screen.
The phone cannot be restarted without connecting it to a power source. Based on this I believe that there are two different apps trying to control the battery level and protect the phone from running out of battery by shutting it down as a safety measure, and the one with the white screen is getting incorrect battery levels for some reason.
Is there a way to find these power modules and disable the faulty one? Or would loading a completely new ROM potentially solve this? I'm not sure how deeply battery monitoring and control apps are buried into the phone.
Hi all! Don't know if anyone noticed this on their Pixel 4 device.
Here is my observations:
I have Pixel Stand and when the change goes up to 90%, I remove the phone from the charger and at this time percentage increases to ~95 or so. At least this is what shown on my Pixel 4. After restarting the phone, it corrects itself and shows 90% again as it did before I removed it from the charger.
I think if phone is removed from the charger at 85%, the battery level is shown properly and not increasing. Mainly around 90% that is where the phone adds 5% over the actual battery level
I had this happen for about 2 months as this is when I started using Pixel Stand. I haven't seen this issue using cable charging.