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Friend has a new Desire Z (bell, unlocked). Using it on AT&T network.
When at a house, and we use WiFI (30Mbps DL, 25Mbps UL), the speeds are VERY inconsistent. With my iPhone 4 using speedtest.net, it shows up as 20/15 each time. (WiFi is a little slower than the modem).
With the Desire Z, we get 15/10 (which is fine/acceptable). Then 3 minutes later we do it, we get 5/2. Without even moving the phone or touching the modem connection (not downloading anything on the computer), the connection just gets slower. Then it might be fast or slow, basically it's a toss-up.
The first time we noticed the issue is because when we are outside, we get HSPA speeds of 2.5/1.0, then randomly decreases to 0.1/0.05. HUGE difference. And VERY inconsistent. He is using a microSIM from iPhone 4, with an adapter, so we figured maybe the SIM card is getting loose at certain points? However, the WiFi is also inconsistent in addition to the HSPA, so it's probably not that.
What should I do? Is this the situation where I have to flash a new radio or something? (Please suggest others if I am wrong).
Thanks!
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Also, his battery is kinda weak. The battery health is apparently clean/healthy. He came from an iPhone 4, where he would have 3G, WiFi, and GPS on at night but not actually using them. Wake up, and 3% battery loss, maybe 5. WITHOUT using them, just having them on.
Now, with the Desire Z, we have the WiFi + 3G on, but NOT the GPS. He is losing 20%-25% in 8 hours without even using the phone.
Information about battery shows a high Cell standby (25%) and Phone idle (25%) percentage. When going into Spare Parts > Partial Wake usage, we didn't find anything really fishy. BUT we had rebooted so perhaps some info may have been lossed. Should he just go to sleep tonight and report the Partial Wake Usage statistics again?
We have a feeling it may be some apps refreshing at night.. But he clears all the apps with Advanced Task Manager except for like Facebook (2 hour interval refresh), GMail, and Google Voice.
I highly doubt a 20% battery decrease overnight is normal.. My mom's Atrix only loses about 5% overnight, with the same parameters I gave before.
I thought it may be a bad battery, BUT the phone idle + cell standby are abnormally high.
Thanks!
Why is this in General as well as Q&A?
Put this in Q&A, didn't get any answers. Went to General, saw that more people posted there, even for Q&A's. Have an actual problem that research didn't help much with, so made a thread. If necessary, I would be glad to remove the thread on Q&A.
By the way, thanks for the answer .
Would you be able to post your software specs? Radio version, rom version, android version? My Bell DZ only loses about 3% per night if I don't plug it in to charge. I, like you, have wifi, gps and hspa enabled with no huge I'll effect.
The stock battery is usually alittle weak. Being a 1350mA, it doesn't have the capacity either, but that is why it is user replaceable. I picked up the mugen 1800mA battery that gives the phone the stamina to last a full day of full use or 2-3 days of light use. I forget how much I spent on it but it was definitely an upgrade.
As for the signal issues, we would need to know what you are running. The latest .30 radio is recommended for AT&T if I remember correctly. Also, the type of rom (stock or custom) might give us abit more insight.
Sent from my HTC Desire Z using XDA App
I lost about 10% overnight today I believe, possibly 15 (don't remember exactly what I left off at).
Not sure on all the stats because I don't know how to check them but
Android Version 2.3.4
Cyanogenmod 7.1.0-RC-Vision (seller did it for me)
What is the radio version? I think that is baseband not kernel? If so its 12.52.60.25U_26.08.04.30_M3
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If anyone knows about the sporadic data, that'd be helpful. It does seem that if I go into airplane mode a few times it fixes itself, but I doubt everyone does that to ensure fast HSPA speeds
Sent from my HTC Desire Z using XDA Premium App
I've never used CyanogenMod Custom ROM's before, so I can't speak from that experience. I can, however, tell you that while running RMK (and team's) Custom ROM's (Virtuous, G-Lite, Unity) and now MIUI, battery life has been excellent, even with the stock battery. The current build of MIUI lasted for about 15hrs on a day of full use, RMK's ROMs would last about 12-15hrs of moderate to full use on the stock battery. Alot of the custom roms have different power management settings and tweaks, if you're comfortable with flashing, I would recommend another ROM and see if that helps with either of your problems.
If you like the Vanilla/AOSP look of android, try RMK's G-Lite ROM. It is very lightweight, fast and stable. I remember having one issue with it, but it was a very small issue and didn't stop me from using it for a few months.
I am currently on MIUI English 1.7.1 and with moderate use I am sitting at 50% charge spent over 2 days. Moderate for me is about 300 texts with about 10 phone calls and a total of about 4hrs of web browsing.
I can link you to those roms if you need, but they're all located in the Dev section. Your radio seems like it's on the right version, so perhaps it's not the issue. Try running another rom for a week and see if that helps to any degree.
I re-calibrated the battery, let it die, charged it up, let it die, charged it up. I followed the instructions to the letter and all that.
It was at 100% when I went to sleep. Woke up 8 hours later, 74%.
Settings > Battery shows nothing high 40% for cell standby and phone idle. Everything else (Facebook, etc.) REALLY low.
Then I went to Spare Parts > Battery Usage, Partial wake usage, everything incredibly low as well..
I will try Watchdog, but could it just be a bad battery? Or maybe should I try a different ROM?
Thanks!
JayXL14 said:
I re-calibrated the battery, let it die, charged it up, let it die, charged it up. I followed the instructions to the letter and all that.
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Click to collapse
NO! This is poor recommendation, and people need to stop perpetuating it. People keep recommending this, but its NOT a good idea to let the battery drain until it dies, just to calibrate the battery meter. While the protection circuit on the battery will USUALLY prevent over discharge, it is not 100% failsafe. There is a slight possibility that over-discharge of the battery will happen, and then the battery is no good, and will need to be replaced. Unless you have a special battery meter with a "boost" function (which most people do not have access to). See the following table on Battery University, where it says for Li ion batteries: Discharge: Prevent full cycles
http://batteryuniversity.com/learn/article/do_and_dont_battery_table
Best practice is to charge to 100%, drain to about 20%, repeat a couple times. No need to go below 20%. The battery meter is not very accurate to begin with, so there is no value added going to 0% versus 20%, but you risk killing the battery.
Plus people keep abusing the terminology. You are just calibrating the battery meter, not "calibrating the battery". When people say this, I think its just a holdover from the old days of NiCad batteries, where you had to condition/discharge the batteries periodically to prevent memory effects (Li ion batteries do not suffer from memory effects, and require no period cycling).
Can't really speak to the Atrix or the iPhone. But the battery drain on the DZ described by the OP is right in line with what I've seen. I also have an unlocked Bell DZ on AT&T, and battery drain of 2-4% (on various ROMs and couple different radios) when the phone is completely idle, screen off is totally normal. Best I've seen on my DZ is with the Virtuous Unity ROM and the .30 Gingerbread radio, where I've seen somewhere around 1-2% drain per hour when idle.
One possibility, is that the different phones are not reporting % battery the same way. As I've mentioned above, the battery voltage meters on phones is not very accurate, maybe in the range of 5-10% accuracy (although, even with this, the drain on the DZ versus the ATrix and iPhone still sounds inconsistent). But what is more important is how many hours of usage you get before needing to charge.
Thanks for the info.. Ill try charging that way.
And I honestly think the battery is just reading it wrong. It honestly feels like it dies faster idle than not, go figure. Yesterday, at like 10% battery, I wanted to kill it off, and played a game for like 10 minutes straight, still 10...
Then I tried leaving the flashlight on for 10 minutes on and it maybe lost 1
How is that battery I recommended from dealextreme though?
Sent from my HTC Desire Z using XDA Premium App
It's interesting to see all the troubles that people are getting on the DZ...
I've had my DZ for about 6months and never seen any of the reported problems.
My 1350mha will last me on a frequent usage near 24hrs and if I'm using it lightly like when i'm busy at work... almost 2days worth.
Mind you I'm running Cyanogen MOD7. No GPS. Wifi is on and I use JuiceDefender.
Cheers mates.
Last night, I charged my phone to a complete charge before going to bed to see what kind of drain I would see overnight. After 9.5 hours, my battery had only lost 2% sitting idle. That is with 3G on, but no Wifi or Bluetooth enabled.
The phone idle accounted for 47%, cell standby 48% and Android system 4%
While it seems remarkable, I'm still not convinced that its not my phone incorrectly reporting the battery level. On a typical day when I pull my phone off the charger, the first 10% is very slow to drain. Today, I have sent a few text messages and played maybe 3 minutes of word feud. That has drained 6% of my battery.
We will see where I'm at later in the day. I suspect that the actual level is lower than the 94% it is reporting. Typically, I get between 12-16 hours of usage, depending on how much I play with my phone.
Well I am at nearly 23 hours on this charge. Have used the phone rather lightly during the day. It sat idle for about 9 of those hours while I slept last night.
Conclusion: Idle drain is very minimal on my device and looks as though the percentage was being reported rather accurately. I'd say if you're having a lot of drain while sitting idle, do some digging and find what it is.
More info:
Facebook: update 1 hour
Gmail Sync: 1 hour
Fancy Widget update: 1 hour
Brilliant Quotes widget: update 1 hour
Light Bluetooth usage (about 15 minutes)
Wifi on all day (not overnight so about 14 hours total)
Screen brightness set at about 50%
Average signal strength: -100dbm
I apologize if this was asked before (I did a search of the forums but nothing really came up), but I'm wondering what others' experience with the battery life of the S4 is? This is my first smart phone and coming from a non-smartphone, I'm not sure if my expectations on battery life are unrealistic.
I got the S4 on 4/29 and brought it through one full charge cycle and several part cycles. Battery life is pretty important to me so I put an all black background (since its AMOLED), keep the brightness to below 10%, turn off all the fancy sensor things, turned on power saver mode, turn off wifi and data unless I really need to use it, turn off all sync so it only happens manually, etc. Yesterday, I charged it to 100% to see how long it would last and the stats I got were:
At 6% battery left, I had a total screen on-time of 2 hours and 58 mins and 1 d 2 hr on battery. Then, when I charged it to 100% and took out the charger, after about 5 minutes of it sleeping/screen off, the battery percentage dropped down to 97% with no data, no wifi, no active apps running.
With my pretty battery-friendly settings on my phone (or at least I think so), is this battery stat normal to others with this phone? Or do you think something might be wrong with the battery?
That sound horrible. There must be some rogue apps running/some wakelocks - try using better battery stats and find out.
chriswongdo said:
I apologize if this was asked before (I did a search of the forums but nothing really came up), but I'm wondering what others' experience with the battery life of the S4 is? This is my first smart phone and coming from a non-smartphone, I'm not sure if my expectations on battery life are unrealistic.
I got the S4 on 4/29 and brought it through one full charge cycle and several part cycles. Battery life is pretty important to me so I put an all black background (since its AMOLED), keep the brightness to below 10%, turn off all the fancy sensor things, turned on power saver mode, turn off wifi and data unless I really need to use it, turn off all sync so it only happens manually, etc. Yesterday, I charged it to 100% to see how long it would last and the stats I got were:
At 6% battery left, I had a total screen on-time of 2 hours and 58 mins and 1 d 2 hr on battery. Then, when I charged it to 100% and took out the charger, after about 5 minutes of it sleeping/screen off, the battery percentage dropped down to 97% with no data, no wifi, no active apps running.
With my pretty battery-friendly settings on my phone (or at least I think so), is this battery stat normal to others with this phone? Or do you think something might be wrong with the battery?
Click to expand...
Click to collapse
you gotta give samsung a little time to fix the firmware
Good for me 4g/3g om half day wifi Facebook browsing xda
Sent from my GT-I9505 using xda premium
This is what's draining my battery can't turn it of for some reason Google services
Sent from my GT-I9505 using xda premium
chriswongdo said:
I apologize if this was asked before (I did a search of the forums but nothing really came up), but I'm wondering what others' experience with the battery life of the S4 is? This is my first smart phone and coming from a non-smartphone, I'm not sure if my expectations on battery life are unrealistic.
I got the S4 on 4/29 and brought it through one full charge cycle and several part cycles. Battery life is pretty important to me so I put an all black background (since its AMOLED), keep the brightness to below 10%, turn off all the fancy sensor things, turned on power saver mode, turn off wifi and data unless I really need to use it, turn off all sync so it only happens manually, etc. Yesterday, I charged it to 100% to see how long it would last and the stats I got were:
At 6% battery left, I had a total screen on-time of 2 hours and 58 mins and 1 d 2 hr on battery. Then, when I charged it to 100% and took out the charger, after about 5 minutes of it sleeping/screen off, the battery percentage dropped down to 97% with no data, no wifi, no active apps running.
With my pretty battery-friendly settings on my phone (or at least I think so), is this battery stat normal to others with this phone? Or do you think something might be wrong with the battery?
Click to expand...
Click to collapse
For a smartphone, an 'all-day' battery is fine, and given that the S4 has so many sensors, large screen and a powerful processor, I am happy with the battery lasting for 12-16 hours. I don't turn off any sensors, why get an S4 to run it on power saver mode and turn everything off? It defeats the purpose, in my opinion. I am trying to use as many features as possible on my S4. Of course, there are a few I don't, but just for personal preference. What you are doing is (no offence) in my opinion like getting a BMW M3 and running it on 4 pistons to save fuel.
Anyway, your battery life will improve after about 10-15 charge cycles, I noticed that with my past phones as well. If you need your battery to last longer, I would suggest getting a spare battery and keep it charged at all times for any emergencies. These are some of the reasons I love Samsung, removable batteries and microSD card slot.
thanks for the replies guys. I'll try the betterbatterystats app out. i'll probably take it back to sprint and see if they'll replace the battery for me. the screen accounts for about 50% of the battery usage in the stats and other apps take up the rest. the battery curve is pretty linear in a downward slope too (except when i don't use it at night, it becomes much flatter, albeit still downward).
haha its funny you say that, because i agree completely. the m3 is my dream car and if i could ever afford one, i would probably baby the crap out of it the reason why i got the s4 (and i also compared it to the htc one as a possible candidate) is because of the removable battery, sd card, nd most importantly: camera. that 13 megapixel shooter + hdr is really great for good photos on the go. speaking of which, i use the camera alot. is the physical use of the camera and the screen use a big power hog?
Ausboy 2011 said:
Good for me 4g/3g om half day wifi Facebook browsing xda
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
This is what I expect from S4
Google Services may be Google Now.....unless you use it, you can turn it off........
The phone only takes 1h 57 minutes to charge from flat. It's mad how fast thing thing charges from AC so battery life isn't really a problem. (yes I was sad enough to time it)
Sent from my GT-I9505 using xda app-developers app
I will try install many roms and in all the battery life is bad.
CloudyG2 3.3 and 2.2 and more...
What can I do? I have LG G2 two years.
Change battery, I also have that problem , and only fix is replacing battery..
Sorry on bad english
Another help? I dont want replace my battery.
saarxee said:
Another help? I dont want replace my battery.
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Click to collapse
Remove all apps you don't need. Install wakelock detector to see what is consuming battery on your device Then disable them using greenify or servicely . You can also run this script http://forum.xda-developers.com/lg-g2/general/guide-reducing-google-play-services-t3139032 .
Remove extra bloatware , avoid using wifi , reduce screen brightness .. or go back to kitkat.
I would rather suggest to change your battery dude, 2 years for a mobile battery is more than enough.
Only apps was installed on my device is WhatsApp, facebook, Instagram and Greenify.
Yesterday I downgrade to KitKat and the battery very bad (Cloudy 2.2)
Same problem here : http://forum.xda-developers.com/lg-g2/help/lg-g2-d802-battery-draining-5-0-2-t3256313/
I also got bad battery life with all LG lollipop rom and stock kitkat , but I get terrific battery life with cloudy g2 2.2. Like 6.5 hours of SOT. Just make sure you clean flash and reduce background app by clearing recent apps.
Are there any apps that show the battery Wear level
Sent from my SM-N920C using Tapatalk
Mr.201 said:
I also got bad battery life with all LG lollipop rom and stock kitkat , but I get terrific battery life with cloudy g2 2.2. Like 6.5 hours of SOT. Just make sure you clean flash and reduce background app by clearing recent apps.
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Click to collapse
6.5 hours?!?! Are you sure?
1.5 to 2 hours of SOT is the most I can get out of my two-week-old G2.
I bought is from a "mobile shop" on aliexpress.
Yes, it is refurbished... ,it looked like brand new on the outside.
... however, when I disconnect it from the charger in the morning (7 am) a few hours, and a few phone calls later it is already at 85%
at noon there is 65% left.
at the evening - somewhere around 22h - the battery usually dies completely ...
14-15 hours of usage on battery... NO games, NO Youtube videos.
Max 30 minutes browsing the news (on WiFi)... and an hour of phone calls (city center, so no problem with reception...)
When the screen is on (btw. I set it to 70% brightness) I can literally see the battery percentage indicator decrease every few minutes...
Looks like I got a phone with bad battery... didn't I?
I'm on KitKat (4.4.2 stock) D802 version...
I had this problem on my freedompop(sprint) "refurbished" phone. Even though it looked like new on the outside, I would only get 2-3hrs sot. After replacing the battery I now get more than double that. Factory reset, disable/uninstall the apps you don't need, and only install the apps you do need. If you still get bad battery life then the only option is a new battery.
Btw, a custom rom will NOT give you significantly better sot unless it severely cuts performance and lcd brightness.
13x025 said:
6.5 hours?!?! Are you sure?
1.5 to 2 hours of SOT is the most I can get out of my two-week-old G2.
I bought is from a "mobile shop" on aliexpress.
Yes, it is refurbished... ,it looked like brand new on the outside.
... however, when I disconnect it from the charger in the morning (7 am) a few hours, and a few phone calls later it is already at 85%
at noon there is 65% left.
at the evening - somewhere around 22h - the battery usually dies completely ...
14-15 hours of usage on battery... NO games, NO Youtube videos.
Max 30 minutes browsing the news (on WiFi)... and an hour of phone calls (city center, so no problem with reception...)
When the screen is on (btw. I set it to 70% brightness) I can literally see the battery percentage indicator decrease every few minutes...
Looks like I got a phone with bad battery... didn't I?
I'm on KitKat (4.4.2 stock) D802 version...
Click to expand...
Click to collapse
Well if you are using kitkat then i must say you got a faulty or old old battery . G2 on kitkat is/was a beast , I can recall those days when i used to get 7+ hrs sot on kitkat . you should call or email to your seller and tell them the problem you are facing.
After sorting through potential power draining apps etc.. You could try a battery calibrator of some sort. I used one and a big difference noticed, however after it's fully charged in the morning I take it off the charger and leave it sit there for at least 30 mins without touching it and battery life is even better.
Thank you all for your answers.
In the mean time I installed this Battery Monitor Widget.... and it gives me some "interesting" readings:
1. my phone charges ridiculously fast. From 37% to 100% in 70-80 minutes... Connected to the charger at 00:04. At 01:14 it was already at 99% (This widget gathers info every 10 minutes)
https://goo.gl/photos/DDerdsk2mSdKipMt7
...and it charges with an insane amount of current (over 2100 mA)
https://goo.gl/photos/VJd7iUFMm5A4s3UeA
2. there are some kind of "spikes" in battery usage, but after a few minutes the battery seems to recover...
this is the battery voltage statistics:
https://goo.gl/photos/Uh96utz1aBJNV3qCA
So, It is more and more evident, I got a faulty battery...
Now, only if I could know where to buy a GENUINE LG battery...
Aliexpress is full of "shops" claiming they are selling "original" LG batteries, however there are quite a few negative reviews about them... (batteries are lighter, thinner, deteriorating fast... etc.)
Hi guys,
I got a 32 gig grouper off Ebay in July 2015. From the get go, I was impressed with the battery life, and it got even better when I went the custom rom route. My main use case is streaming movies or TV in the evening for a few hours, and otherwise leaving it in standby/airplane mode to conserve battery life until the next viewing. Typically overnight, the battery sips power -- maybe 2-3% lost in 7-8 hours.
Over the past month, though, I've seen a considerable dip in the standby/airplane mode time in particular. Now, overnight I seem to lose 10-15%. I realize batteries have a lifespan, but I figured I'd see a more gradual drop?
I tend to only have 4-5 streaming apps on the tablet at a time. Currently I'm running CM11 stable, but I observe this standby battery drop in all roms -- I've gone as far back as 4.1.2 (stock + unrooted) and all the way up to CM13 unofficial. I used better battery stats/GSAM but never really caught any wakelocks that would account for that much power lost.
At a loss for what to try next. I can capture screencaps if it helps, but they never really told me anything (perhaps someone else would get more info from them.) Any help is appreciated!
Also, my on screen time feels about the same. I've drained the battery a few times with some streamed video, and I get around 4-6 hours. It's the standby time that has dropped off considerably.
http://postimg.org/image/mcr6lrjex/
http://postimg.org/image/5r6kaz4b3/
http://postimg.org/image/5r6kaz4b3/
mh1983 said:
http://postimg.org/image/mcr6lrjex/
http://postimg.org/image/5r6kaz4b3/
http://postimg.org/image/5r6kaz4b3/
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Get Kernel Aduitor or a CPU managament program and see if your tablet is going into deep sleep or if it's still at another clock frequency or if a program is keeping it up.
Thanks for the reply!
My N7 is in deep sleep about 80% of the time on a typical charge, the other 20% being used for on-screen usage (video streaming and browsing typically). It's maddening -- I now lose 15-20% on standby/airplane mode overnight. I don't see any flags in better battery stats or GSAM battery monitor. Most apps are greenified, too, and location services/other potential draining factors are disabled.
Is it just a bad battery?
What can I realistically expect from a Nexus 4 with the original battery?
I've tried flashing various roms, all with varying results, some better than other. With average use, occasional browsing, whatsapp, text messaging and the like, I can go from fully charged to around 30% in around 8 hours.
Is this normal?
Otherwise, some folks suggests a rom that is better focused on batter life? I don't care whether it is Kitkat, Lollipop or Marshmallow.
Thanks,
Yeah, that's pretty good.
Try Chroma + the Quanta kernel combo while undervolting -100mV or so, raise the voltage if the Camera app stops working.
I have replaced the battery twice and have severe battery drain, just turns off at 40%. Annoyingly this happens with a brand new battery (proper LG branded from Amazon). I installed it and charged as normal and it still turned off at 40% then showed 0% when turning the phone back on.