Hello,
I've been wondering if it's possible to recalibrate how the system reads the remaining battery charge. I'm using Rage 2.8 kernel for FXP and battery life is very good (over 30h with moderate HSDPA youtube streaming, browsing etc.), but what bugs me is that it goes from 100% to 80% extremely fast, then it slows down as it reaches 0%, it can hang on 1% for an hour before it finally shuts down.
I'd like it to be somewhat linear (even if the real physical battery discharge cycle is not linear), is it possible?
Cheers!
aidennwitz said:
Hello,
I've been wondering if it's possible to recalibrate how the system reads the remaining battery charge. I'm using Rage 2.8 kernel for FXP and battery life is very good (over 30h with moderate HSDPA youtube streaming, browsing etc.), but what bugs me is that it goes from 100% to 80% extremely fast, then it slows down as it reaches 0%, it can hang on 1% for an hour before it finally shuts down.
I'd like it to be somewhat linear (even if the real physical battery discharge cycle is not linear), is it possible?
Cheers!
Click to expand...
Click to collapse
Depends how you and other apps really use the phone.
I've done idle testing with screen off and no apps, the drain is simply faster at the beginning after charging and later slows down to the point where streaming youtube "eats" less power than idling at 99%. I'm not saying it really does that (because it's impossible), it's just that (I guess) the physical battery discharge curve is like this, but that doesn't really help me at all with estimating how much time I have left.
I may be wrong, but I've tested this twice now (going from 100% to 0%) and it's always faster in the beginning completely regardless of what I'm doing with the phone.
I dont want to **** on the cake but if you care about battery-life you should not use a CM-rom. I used CM-7.2 for 6 months and now switched to a stock-based rom (Spartan). The result is twice the battery-life. CM's battery consumption is horrible especially when the phone is idle. I used to lose 20% during 8h of airplane mode. Now i lose 1-2% without airplane-mode.
Actually, the battery life is just fine for me. I agree, pure CM 7.2.0 drains the battery like there's no tomorrow, but Rage kernel alleviates that by a lot.
The reason I don't use official rom mods is that I like CM a lot, and while battery life could get some more love from the devs it's certainly not that bad, especially with Rage kernel. 30h+ with normal usage, internet, browsing, youtube etc. isn't that bad.
My problem is not that the battery is drained fast, but that the percentage display goes down unevenly regardless of usage. Let's say we compare idle to idle, no airplane mode, no background apps. When the percentage is at 99% it goes down about 5% in an hour (I didn't measure it with a timer, but it's a good estimate), while when the percentage is at 20% it goes down about 1-2% in an hour.
Here s an also weird graph!
Stock Rom .62 rooted.
Check the vertical drops!
h ttp:// img.tapatalk.com/8ded9580-228b-a194.jpg
No problems.Just weird.
Sent from one of my 4 iPads.
Ok, after deleting battery logs after fully charging the phone (although I don't know whether it was this or something else, maybe it just needed three charges) I got a linear discharge curve. Also, now it turns off at 2%.
BTW battery life on CM 7.2.0 - this time (with LAGLESS governor) it got the phone to 59 hours, which I think is really good enough. Rage kernel FTW. Of course, with LAGLESS and stock rom it'd probably reach over 70. Still, I don't need that much, and CM is great.
-- edit --
After another change (switching to 2G when data transmission isn't needed) the phone eats 0.6% battery per hour. Now I really don't need stock.
Hey guys i know there are many forums that discuss this but do you really see a difference in battery life between the two? (60hz both) for me the battery life is the same...
I left mine on 1440p 90Hz since day one and I have never depleted the battery on my day to day use. Usually by the end of the day I have anywhere between 50% to 30% left before I plug it in to charge.
Battery life is great using 60 or 90 but mines set to auto using auto90 app. I use fhd to. I lose 7.63 percent a hour screen on currently.
Would say mines also on 7% per hour...
With Samsung Internet darkmode battery life is insane..
Does anyone else experience bad battery life with A11? Before I had 7-8 hour SoT a day, now it's barely 4-5 hour with the same apps and same usage... Should I change the battery? Where can I order good quality replacement battery?
Even I am getting 4 hrs of screen on time from 100-10% and 2-3hrs when playing playing games.
Phone heats up when calling /playing games/ charging near camera.
with android11 phone charges rapidly even with normal charger.
Battery life with different android version:-
Normal usageHeavy usageAndroid 914-15 hrs11-12 hrsAndroid 109-10 hrs6-7 hrsandroid 114-5 hrs2-3 hrs
The best I was able to achieve with android 11.
How is the battery life of the phone, heavy use!
In a mixed usage scenario you can expect 5-6h SoT
I get about 6-6:30hs on 4g and 6:30-7:30hs on wifi.
I'm not really satisfied with battery life of my less than two months old Realme GT 12/256 GB.
What is your average screen on time on this phone?
Mine would be in the 3.5-5 hours range in a day and a half, maybe more if I watch a movie or something.
I'm not playing games and only have Viber, WhatsApp, Facebook... usual stuff.
I didn't see any tanglible difference between "auto" and 60 Hz screen mode regarding battery life.
Also, what percentage of battery drain do you see overnight?
I'm on latest firmware, tried every possible battery saving combination, but always have at least 3% battery drain overnight (usually around 4% in 7-8 hours) and that with radio and all apps off and various battery saving settings applied (global and per app).
I'm starting to believe it's "normal" for this phone and its SD 888 chipset.
Thanks.
Same
I have very similar results as you. Battery life is just ok.
Current battery life:
from 93% to 28% in 1d 19h, SOT: 3h 15min.
Before this I had Poco F3 for a month or so and I don't recall exactly, but it was something like a 1%, 2% max. drain overnight with pretty much the same usage pattern.
Also I have Lenovo tablet with far weaker MTK CPU but not much bigger battery (5000 mAh and 10.3'' screen) and that one almost doesn't use battery in standby mode (beats all phones I had).
I'm currently disabling various apps and testing and I'll post here if I find out something useful.
Optimized standby - Ultra standby makes exactly no difference in my current setup so I turned it off completely.
Quick device connect is also turned off and not in use, as far as I can tell.