Had my Xperia V for some days now, can't say I'm satisfied with battery life yet. Sometimes it gets very hot, think this is WiFi related, unstable connections etc, turn off WiFi and heat is gone, but huge chunk of battery is gone in a short amount of time.
Also yesterday I had some phone calls from long lost friends and e was talking about 2.5hrs. But check out the battery drain on Bluetooth, I have a Jabra extreme 2 Bluetooth hands-free.
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In general I have gotten very good battery life with my D3 (as long as I have a signal that is...) but I've noticed one definite thing that really seems to suck down the battery... bluetooth. On my D1 I always left bluetooth on all the time because I have it hooked up to the SYNC system in my car for music and using the phone. On that phone, the battery usage window never really showed bluetooth attributing to any usage... but on my D3 it will consistently show that bluetooth has used 25-30% even when I'm not actually using BT!
Mainly I like to leave it on out of convenience so that it auto connects to the car as soon as I start it up... But even without every being in the car and having the phone on battery with BT on, it will drain from 100% to 50% in about 5 hours without really touching the phone or making any calls... just sitting on my desk at home with full 3G signal. How is it possible that it's using this much power for BT to idle?
Anyone else seeing this issue? Or better yet have a solution aside from turning BT off?
I had the Bluetooth on all the time with my Droid 2, granted I was running custom roms since the day I got it, but Bluetooth did not take nearly any of the battery my droid 3 does. I can still get a full day on the Droid 3 but Bluetooth is taking over 30% of my battery every time.
Has anyone noticed excessive battery drain from bluetooth after disconnecting a headset?
After disconnecting my headset (Motorola S9), I have to turn off my bluetooth, otherwise, my battery status will show Phone idle % = to the bluetooth % (Phone Idle = 28%, bluetooth = 27%) and my battery will go dead in just a few hours.
Yes. Noticed it yesterday after using my new car dock. I just need to remember to turn off bluetooth
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I've been using bluetooth with my car stereo and haven't noticed a significant difference.
I used Bluetooth with my car handsfree and noticed it used a lot of battery too. :/
Have had to leave BT off for the most part.
Since day one leaving bluetooth on all the time has been showing a 25-30% battery usage
I've never had a phone that didn't die quickly when bluetooth is on but not paired.
It is akin to the phone searching for a signal in an area of no service. The radio draws more amps when it has no signal.
I agree there is additional drain when Bluetooth is enabled. What I am noticing is that if I reboot the phone, the drain from Bluetooth is fairly normal. After connecting/disconnecting a headset, the drain increases by 10 times. It is almost like the Bluetooth drivers get stuck in search mode.
I've noticed the same thing and have been turning it on and off as needed.
I don't think this is normal though - I left Bluetooth on 24/7 on my OG Droid for almost 2 years and don't think I ever saw it consume as much battery.
limaxray said:
I've noticed the same thing and have been turning it on and off as needed.
I don't think this is normal though - I left Bluetooth on 24/7 on my OG Droid for almost 2 years and don't think I ever saw it consume as much battery.
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this. the radio shouldn't be consuming additional power to search for devices. BT power doesn't change between searching and pairing. it's not like trying to lock a cell signal. i left my wifi/BT on my D1/D2 everyday and never had the level of "drainage" that appears in the battery usage.
i've been running without them on for testing purposes and i'm not convinced there is a problem with them. right now i'm more convinced that there is a problem with the battery usage app, or at least the statistics engine.
There is certainly something here - but I am not sure is it related to the bluetooth or to the car dock. Before I got my car dock I used bluetooth speaker and didn't notice battery running down faster. Now - after I take the phone out of the car dock, even disabling the bluetooth doesn't help - battery starts draining about twice as fast. If I reboot the phone after use in car dock, things get back to normal. And I feel phone stays warmer in the lower area. I hate bugs like that!!
Cell standby 50%
Phone idle 42%
Display 5%
Android OS 3%
Android system 2%
Is this normal?
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A high cell standby percentage means you are in an area with little signal. If I spend all day playing Skyrim in my basement (like 14 hours) then I also will have an astronomically high percentage of cell standby. Basically, your phone is trying to connect to the network when there is an unreliable signal.
My suggestion: Turn airplane mode on when you plan on not using your phone. If this is while you sleep, you can configure the app Tasker to put your phone in airplane mode and reconnect every hour or so to collect text messages. The guide for this is here.
Word thanks (;
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When xt860/xt862 first came out cell standby was at the top of everyones battery usage list. Recent updatez have fixed that but ive noticed some roms still have it as being top of the list, however to me it hasn't seemed to affect my battery life. What phone model/rom are you running
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Endoroid said:
When xt860/xt862 first came out cell standby was at the top of everyones battery usage list. Recent updatez have fixed that but ive noticed some roms still have it as being top of the list, however to me it hasn't seemed to affect my battery life. What phone model/rom are you running
Sent from my XT860 using xda premium
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Im deodexed on liberty with ics theme and v7 speed script
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jarzy00 said:
Im deodexed on liberty with ics theme and v7 speed script
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Liberty also has an issue with displaying cell standby usage. I'm running Liberty 2.0, and I constantly get cell standby of 40+ percent, no mattery how much I use or where my phone is. If your battery life is fine, then dont worry about it. My extended battery can last up to 3 days..
slayer621 said:
A high cell standby percentage means you are in an area with little signal. If I spend all day playing Skyrim in my basement (like 14 hours) then I also will have an astronomically high percentage of cell standby. Basically, your phone is trying to connect to the network when there is an unreliable signal.
My suggestion: Turn airplane mode on when you plan on not using your phone. If this is while you sleep, you can configure the app Tasker to put your phone in airplane mode and reconnect every hour or so to collect text messages. The guide for this is here.
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Click to collapse
I got 40% cell standby today while connected to wifi all day. I wasn't more than 50 feet from router all day and it was still high.
Not sure the signal strength is the sole (or main) factor.
Running liberty 2.0 with the speedy on my d3.
Sent from my DROID3 using XDA App
nu2droid said:
I got 40% cell standby today while connected to wifi all day. I wasn't more than 50 feet from router all day and it was still high.
Not sure the signal strength is the sole (or main) factor.
Running liberty 2.0 with the speedy on my d3.
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Cell standby is not just for the 3G data connection - it's also for your connection to the voice network, which is not switched off when you are connected to WiFi. So, if you are in an area with a weak signal, unless you go into airplane mode and then turn on WiFi, you could see high cell standby.
doogald said:
Cell standby is not just for the 3G data connection - it's also for your connection to the voice network, which is not switched off when you are connected to WiFi. So, if you are in an area with a weak signal, unless you go into airplane mode and then turn on WiFi, you could see high cell standby.
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Yeah im literally next to my router with wifi on and cell standby= 47% but battery life isnt terrible for me. Ive been at moderate-medium usage today and its been 10 hours im at 57%
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I wonder if it's an issue in the reporting
I love the CM7 build for the milestone, It makes the phone so much better!
but one thing is weird. When I use the 3G DATA (browse sites, watch YouTube)
the battery drains REALLY fast!
For example, today I got into facebook, browsed 4-8 pages, and the Battery
level Decreased by 30%! (FOR A 5 MIN SURFING)
Wifi surfing seems ok.
Is this normal?! anyone else had this problem ???
I have the same problem. using 3G data drains my battery drastically. been using the phone for more than 2yrs now. i wont complain about that. but CM7 is gr8 when it comes to boosting your battery life.
Same thing happens here and i think it's normal. 3G consumes more battery than wifi on every phone i had.
Active 3G consume more battery than Wifi (or 2G) but 30% in 5 minutes is not normal.
You should calibrate your battery with this tutorial : http://forum.xda-developers.com/showpost.php?p=11803458&postcount=10
Did you calibrate the battery after having flashed CM7?
I'm loosing a lot of batterylife when 3G is activated, too.
battery "drain" is normal on DATA. i had these problem too with my milestone.
wouldnt say its a CM7 problem...
for me it is because of the "2 year old battery" + DATA... those two wont work well
I've been running marshmallow since the stock images were posted and I always got very nice battery life with doze. As in, I wouldn't have to charge the phone until the next morning. Since last week, however, cell standby is using significantly more battery. Yesterday, I took the device off the charger at 0900, and by 2100 I was already at 25% battery. Screen on time was only 2 hours, and cell standby had more usage than the screen. No matter my signal quality, it seems cell standby is eating my battery. Phone isn't even showing as awake! I also am always connected to WiFi and using T-Mobile WiFi calling.
I know a few users have reported a similar issue since marshmallow, does anyone have an idea of why cell standby is killing battery even though time without signal is 0? Time active is also always under 20 min. Since I'm using WiFi calling, I'd think the phone wouldn't even be searching for a voice signal anyway.
My signal has been worse than abysmal since switching to Marshmallow. I uninstalled Fit, Pay, and Google+ and it got better strangely enough but i still have issues from time to time...
gakio12 said:
I've been running marshmallow since the stock images were posted and I always got very nice battery life with doze. As in, I wouldn't have to charge the phone until the next morning. Since last week, however, cell standby is using significantly more battery. Yesterday, I took the device off the charger at 0900, and by 2100 I was already at 25% battery. Screen on time was only 2 hours, and cell standby had more usage than the screen. No matter my signal quality, it seems cell standby is eating my battery. Phone isn't even showing as awake! I also am always connected to WiFi and using T-Mobile WiFi calling.
I know a few users have reported a similar issue since marshmallow, does anyone have an idea of why cell standby is killing battery even though time without signal is 0? Time active is also always under 20 min. Since I'm using WiFi calling, I'd think the phone wouldn't even be searching for a voice signal anyway.
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The same happened to me, at the begining with marshmallow (chroma and francokernel) always more than 5h SOT and easy deep sleep... but now, the last night at 1:00AM battery was at 100%, at 5:00AM was 84%... and no wakeloks... i'll take some screenshots
Same here. I swear the battery is draining faster but no wakelock issues.
Plus I believe there is an issue with the signal reporting. Where I know that I get full signal the phone can report zero bars. Switch to airplane mode and back, then suddenly the signal displays correctly!
+1 My signal is terrible anymore, and I certainly was much better on the preview images
At my desk at work, same spot I sit my phone everyday would be in the mid 80s and right now it sits at -103....hit airplane mode and it resets....for a few
gakio12 said:
I've been running marshmallow since the stock images were posted and I always got very nice battery life with doze. As in, I wouldn't have to charge the phone until the next morning. Since last week, however, cell standby is using significantly more battery. Yesterday, I took the device off the charger at 0900, and by 2100 I was already at 25% battery. Screen on time was only 2 hours, and cell standby had more usage than the screen. No matter my signal quality, it seems cell standby is eating my battery. Phone isn't even showing as awake! I also am always connected to WiFi and using T-Mobile WiFi calling.
I know a few users have reported a similar issue since marshmallow, does anyone have an idea of why cell standby is killing battery even though time without signal is 0? Time active is also always under 20 min. Since I'm using WiFi calling, I'd think the phone wouldn't even be searching for a voice signal anyway.
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Click to collapse
I'm having the same issues. Overall, pretty solid battery life but cell standby drainage was high. Been searching forums with no such luck. Sounds like it might just be and Android issue I have to hope gets fixed in an update? I'm using T-Mobile wi-fi calling. I'm in areas with strong LTE signal, but compared to my old phone, the amount of "bars" I'm seeing seem lower and sometimes non existent, although I spent no time without signal.
https://goo.gl/photos/GedRcGM87mjX9rGb6
https://goo.gl/photos/2wDqz1XdY5m8vQCcA
https://goo.gl/photos/cpcK3TjjbxoQQ4n99