Post #396,804
12/3/14 8:24:07 AM
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Nexus 4 post upgrade question.
So, I upgraded the OS of my Nexus 4 some time last week. Since I've been running Android 5.0 I've noticed a rather non-trivial problem. At first, I thought I was imagining things (I was out of state and not charging the phone like I had been since I got it) but now that I've been back at the office a couple of days, I'm certain my battery life has been cut by more than one half since I upgraded. I leave the thing plugged into my PC most of the day at work (USB trickle charge). I leave at 5pm or thereabouts with a full charge. I used the phone all of about 10 minutes last night and it was stone cold dead by 8:00 AM this morning when I plugged it back into my work computer. Before the upgrade, a full charge arising from a USB trickle charge at work would last two to three days with normal use of the device. This damned thing will not hold a charge for 16 hours anymore even with light use.
Anybody seen similar behavior?
TIA.
--Mikem
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Post #396,808
12/3/14 8:47:55 AM
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The battery life on mine seems much improved.
I only charge mine overnight. The battery used to be down to ~ 8% when I got home, now it usually has more than 50%. It did act a little squirrely early on until I rebooted it a couple of times. Have you done that? (I guess you must have at least once if it was totally dead.) Supposedly they fixed a "miscellaneous" battery drain when WiFi is enabled with an update - http://www.cnet.com/news/google-squashes-android-5-0-lollipop-battery-drain-bug/About Phone just tells me I'm running 5.0. The Kernel is: 3.4.0-perf-g60eefcd android-build@vpbs1.mtv.corp.google.com #1 Fri Oct 10 18:28:38 UTC 2014 Build number LRX21T Hope it's something simple. Good luck. Cheers, Scott.
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Post #396,810
12/3/14 9:29:28 AM
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Thanks. Did you turn on the battery saver mode?
I left my set to the default ("never").
You and I are running the exact same build. Formerly, if I left Friday at 5pm on full charge, I would be down to 6-8% by Monday morning with no additional charging over the week-end. I don't use the thing very much. Phone calls and texting mostly with only very occasional email/web. The only game I play is chess and that's not every day. Still, a guy I work with says he's always charging his, but uses it much more frequently than I and plays a lot of games. So maybe I was just lucky up until now.
I'm very much looking forward to the day I have no mobile device at all. If family didn't insist, I wouldn't have one now. ;0)
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Post #396,817
12/3/14 10:21:41 AM
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Not intentionally.
Everything is configured as it was on 4.4.4 I can't use WiFi at work, but I don't have it turned off. Let's see... Battery Saver is Off, Turn on automatically is Never. I mostly use it for Pimlical A. I only get a couple of calls a week, I play "Blitz" a few times a month, look at IWT on it a few times a month, text a few times a month, Google Maps a few times a month. I used 372 MB of data last month. I'm not a heavy user at all. These are complicated boxes - it's amazing they work as well as they do. I hope it settles down for you. I'm very much looking forward to the day I have no mobile device at all. I feel that way too, sometimes. Vacationing in the middle of nowhere once in a while is a nice change. Good luck. Cheers, Scott.
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Post #396,828
12/3/14 3:15:58 PM
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Device Assist?
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Post #396,830
12/3/14 4:18:23 PM
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Interesting.
It says, "Try using a wall charger." My phone is plugged into my PC at the moment and indicates full charge. I unplugged it from the PC and it says, "Looking good! Your device is in good shape. No suggestions now!" That's funny, because the only way people can hear me during a phone call (this started with one of the 4.x upgrades) is if I put the phone on speaker. But, that's not an issue with the phone I guess. ;0)
Thanks for the input!
--Mikem
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Post #396,835
12/3/14 6:50:40 PM
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A wall charger will charge it faster than USB.
There are standards for charging a device via it's USB port with way more current than a computer's USB port can provide. My Xperia charges noticeably faster with the wall wart. http://en.wikipedia.org/wiki/USB#PowerWade.
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Post #396,843
12/4/14 2:47:36 AM
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Some PCs, too.
My PC, ifI install the Asus toolkit software for the motherboard, has USB Turbo Hyper Whateverthefuck charging from specific ports - i.e. delivering 1 or 2A, rather than the usual 500mA.
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Post #396,850
12/4/14 8:45:23 AM
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Understood.
But IME, the slower USB/trickle charge used to result in the battery lasting longer. A full charge at 5pm is now stone dead by 8am the next day with no use of the device at all. That's new for me.
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Post #396,851
12/4/14 9:14:56 AM
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Won't make any difference
Modern batteries have brains that will not let you over-charge or fully discharge them (they announce they're "empty" at ~20% of actual charge capacity, frexample) because both scenarios are profoundly deleterious to the health of a li-poly battery pack.
Review the Android battery use contraption. Something is not right on your phone.
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Post #396,856
12/4/14 10:41:28 AM
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Yup, something's wonky.
My Nexus 4 was unplugged from the wall charger around 8:30 AM. It now shows 91% with 18 hours left.
Google Services 3%
VPN Unlimited 1%
Android OS 1%
Sirius XM 1%
Gmail 1%
I've got an HSPA signal on T-Mobile, maybe 75% of the bars. WiFi shows a gray indicator with an exclamation point; I'm not connected to WiFi.
My screen intensity is at 50%.
Pimlical A is the only "card" running.
HTH a bit.
Cheers,
Scott.
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Post #396,860
12/4/14 11:41:34 AM
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Just unplugged it 5 minutes ago. 98% 7 hrs left.
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Post #396,866
12/4/14 12:41:13 PM
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Dunno.
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Post #396,965
12/9/14 7:58:43 AM
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Thanks all. That's weird. My phone is back to normal.
I left the office Friday on 100%. Went up to GR to see a hockey game Friday night. Left the phone on all week-end and used it sparingly. On Monday I had about a 50% charge left. I didn't change anything on the phone, but it is holding charge a lot better (no overnight deadness). Peculiar, but I'm not asking any questions.
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Post #396,966
12/9/14 7:59:58 AM
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Woot! I'm glad it's done being cranky.
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Post #397,308
12/18/14 7:24:48 PM
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Just installed the 5.0.1 OTA update.
It seemed to take a long time after downloading (5+ minutes?), but it seems Ok. A bunch of other stuff is downloading now too...
I'll post more if I have any issues tonight.
Cheers,
Scott.
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Post #397,323
12/19/14 8:17:45 AM
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I just did that as well.
And I need to post a correction. My battery wasn't actually dying. It just appeared so. If I leave the phone unused, but still turned on overnight, sometimes in the morning the device doesn't come on when I tap the power button. If I hold the power button on for about 30 seconds I observe one of two behaviors after that interval:
(1) If I have the phone plugged into a charger, the indicator light comes on solid red. I lift up on the power button when it does that and the solid red blinks a few times. Then the battery charge symbol appears (like it does normally when turned off and plugged into a charger). It is almost fully charged when this happens, typically around 75%. I can then either leave it charging or hold the power button long enough to boot it up and all is well.
(2) If it is not plugged into a charger, the indicator light begins to flash white and then the device boots up properly, again, with about a 75% charge.
I'm going to have to RTFM, but it looks like inactivity is causing the device to go into something that looks like a "deep sleep" state.
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Post #397,381
12/19/14 10:31:28 PM
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Oh, they're trying that again?
I had a few adventures with my tablet through the Android 3.x series where it would go into "deep sleep" if left overnight. There were three OS updates almost once a month from Asus until they made that "feature" Go Away.
I'm speculating wildly but it sounds like someone in Google-land loves "deep sleep" in Android and how it improves battery life, thus why it's back. Unfortuately they don't understand why the great unwashed don't Get It. Such a person likely has atypical Android usage and hasn't had that fact hammered into their head yet.
Wade.
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