Battery Drain while driving to work - Huawei P20 Pro Questions & Answers

Hi
Just noticed something interesting this morning whilst driving to work with my huawei p20 pro.
The battery drained from 82% to 78% within a 40min drive to work on standby (without mobile data, location GPS or Bluetooth on). When I am normally at home it drains around 2-3% overnight max.
I have 2G/3G mode as preferred and carrier aggregation disabled
Is this due to it automatically switching to the nearest cell tower?

Related

[Q] Is phone awake when automatically looking for a network?

Hi, I live in a place where there's very poor network coverage and my SGS often looses signal. And here's the problem: when I check battery consumption in the settings I can see that the phone is often awake (for about 1,5 hour overnight) and looses battery like 3% an hour even when I don't use it and is supposed to be asleep. Is it possible that it is searching for available networks during that time and that is why it is awake and eats battery?
I do not have data on, nor wifi or gps. I'm running SLIM 3.3 with 0.67b Devil.
Thanks in advance.

Anyone else have high Cell Standby?

Anyone have issues with high Cell Standby? My cell standby is at the top of my list with "time on 8h 12m" (pretty much my entire time off the charger) and Time without signal is 0% (so i haven't lost connection plus I've been on Wifi at home the entire time)
Ive also only have about 52 mins of screen on time with light use and I'm down to 79%. The drain seems very high considering how I've used the phone. I just don't understand why the standby is so high or whats causing it. Im stock rooted and have r17 Franco Kernel installed, it seemed to have started when I installed the latest r17 but I'm pretty sure it would be a coincidence since the cell standby was always kinda high on my list but not as bad as lately.
Nocturnal86 said:
Anyone have issues with high Cell Standby? My cell standby is at the top of my list with "time on 8h 12m" (pretty much my entire time off the charger) and Time without signal is 0% (so i haven't lost connection plus I've been on Wifi at home the entire time)
Ive also only have about 52 mins of screen on time with light use and I'm down to 79%. The drain seems very high considering how I've used the phone. I just don't understand why the standby is so high or whats causing it. Im stock rooted and have r17 Franco Kernel installed, it seemed to have started when I installed the latest r17 but I'm pretty sure it would be a coincidence since the cell standby was always kinda high on my list but not as bad as lately.
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If you don't use the phone and keep it away, obviously the cell standby will come first but that much battery should not be drained. I can notice max 2-3% of battery drain from 100% over-night on stock
If you don't charge your phone up all the way to 100%, the battery stats don't reset.
Otherwise I think it's sounds reasonable.
8hr stand by, a little under 1 hr screen, wifi on the whole time.
That's about 9 hours total + wifi for 21% or 676.2 mah used. I usually run with a huge stand by time, not so much SOT. I get about 35%~ a day so I charge up every three days.
If you're on WiFi and cell standby is that high then you probably have a weak voice signal connection. What colour is it on your graph? You can also check your signal level in Settings > About Phone > Status

Cell Standby Suddenly Draining Battery (CM13 RR)

Last night I had a problem with my home wifi (phone couldn't connect--Authentication error). I rebooted the router and it connected. Then I noticed an hour or two later that my phone was warm and the battery drained about 20%. I charged it fully and went to bed. Six hours later and the battery was completely dead.
Cell Standby is using 60%. I wiped the dalvik and cache in recovery and it's still using 60%.
The phone is on CM13 RR (6/22).
It's a Marshmallow bug that occurs when on Wi-Fi and connected to LTE.
You can alleviate this issue by using an app that automatically switches to 3G like Smart Network (Xposed) or GravityBox's smart radio (Xposed), or by turning mobile data off entirely when on Wi-Fi. By doing thia, Cell Standby won't show that "drain." However, MMS (but not SMS) texts will not be sent or received if mobile data is off, with the only exception being Verizon's Message+ app, which can send and receive via Wi-Fi.
There's some "debate" as to whether or not it actually has any impact to battery life or if it's just a visual reporting issue. Me personally, I see zero negative effects of the Cell Standby "drain." If I turn mobile data off, or use the 3G "fix," my battery life is basically the same as when Cell Standby is showing the "drain."
More in-depth analysis of by Cell Standby "drain" analysis here.
I believe I have solved the problem. I reflashed the .49 update and everything went back to normal.

GPS usage on battery

Hi guys, planning to put my GPS always on, anyone also doing this? How's the battery life?
i keep location services on, high accuracy mode and wifi scanning always on. the battery consumption is normal and phone easily lasts me 1 day.
i dont see the point of having a smartphone and have to switch on and off location all the time. i'm willing to sacrifice a little battery.
I too always leave location on (high accuracy, wifi/bluetooth scanning available).
I also have Google Location History on, which requests location data a few times an hour.
On Open Beta 10 with ElementalX Kernel.
On idle, I've experienced minimal drain (0.1-0.3% per hour).
While traveling (and listening to music at the same time), I usually see 5-7% drain per hour.

Battery

Im not sure my battery is good. I start work early so turned phone on around 2:20am not looked at it much until 7:30 and it had droped from 100% to 92% in my pocket. I work until 1pm ish so before then its on 4g/5g on network 3 uk.
I get home and connects to wifi.
I get around 6 hours sot.
Does the first 20-30% drain quick for everyone or just me?
I have just turned off loads of background data usage and stopped maps and chrome using location history etc. See if that helps. Ive seen that flicker between 4g and 5g could cause issues too
For me personally the first 20-30% doesn't seem any worse than any other range in the battery. I have all the radios enabled and all location services turned on. Even hammering 5G doesnt seem to hit the battery in a significant way (although i should point out there was zero 5G usage in the image). I have just under 3 hours SOT with this usage so about the same as you i'd say by the time another charge comes around. I don't use AOD and i have got digital Wellbeing disabled though, i personally cant see the point in either feature.
Yeah, an 8% drop in just 5 hours of not doing anything is pretty bad. That's like 1.6% per hour standby drain. Mine gets about 0.5% drain per hour on standby and that's actually a lot worse than my Pixel 2 XL when it was new.

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