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batsona
Maryland

join:2004-04-17
Ellicott City, MD
Reviews:
·Vonage
·Verizon FiOS

Troubleshooting fast batt-drain....

I know that there a TON of things that could cause this, but I need help looking in the right direction...

Under normal avg circumstances, I leave my phone on charge all nite long, and it has 100% charge when I take it off the charger at 6:30a. When I go to work, it's in the cradle charger in the car until 8AM. Then it stays on its own until 5:30p when I go home. When this happens, it's at about 70%. 1-2 phonecalls, 5-7 TXT messages, and that's it during the day...

Now, just recently, I went on a day trip where I didn't have my charger with me. Same thing - started the day at 8AM with 100% charge. This time, much less activity.. I checked the time a few times, and by 3PM, the phone went to sleep (0% !!!) I was on a trip, and couldn't take pictures at all.. (got yelled at by the family...) Now, on my trip, there were TWO things that were different. 1.) The temperature of the phone. When I was walking around, the phone was in my pocket, so it was a bit warmer. and 2.) I ran the WAZE application once, to see where we were, then shut the app down.

Question: When I look at 'running processes', how can I tell what's part of the OS, and what's sitting in memory that shouldn't be there (if it's been shut down...)?

My phone is a Droid RAZR with Android 4.0.4 - the phone was purchased in May, 2012.


bbrcat
RIP Lisa
Premium,MVM
join:2000-12-09
NH
kudos:3
Reviews:
·Time Warner Cable
I have the same phone and version, but don't charge it that long. I manually shut down non-needed processes(or you could use a task killer) and I restart phone a few times weekly.
--
Team
Discovery

batsona
Maryland

join:2004-04-17
Ellicott City, MD
Reviews:
·Vonage
·Verizon FiOS
Exactly what I was looking for.. however, I guess I've been too aggressive in the past, in forcing tasks to close, because i'd end up crashing the phone & it would restart (closing something that's needed by the OS) What task-monitor / killer do you recommend? --and is there a way to post a list of tasks that are related to the OS, and should always be allowed to run?


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
You should NOT be using a task killer on Android 4.x.

Android will manage the apps and shut them down.

When you kill things with task killers, they often just re-start right away and you're literally killing the battery in doing so. Your app kills it, it restarts, your app kills it, etc etc.

Instead of randomly killing stuff, get something like better battery stats which has a free "xda edition" available here.

Install that, fully charge the phone and then when you unplug it will start keeping track of things. Once you have a few hours or a day of usage (don't plug it in during this time), you can open the app and it will show you the processes using the most CPU, things keeping it awake, etc.
--
"I drank what?" -Socrates

batsona
Maryland

join:2004-04-17
Ellicott City, MD
Reviews:
·Vonage
·Verizon FiOS
I was doing reading elsewhere, and I noticed an very interesting correlation... This ultra-fast drain has only happend twice before, and BOTH times, I was on a multi-hour trip on a bus! When I commute to/from work, the phone is on charge on the cradle in the car. Someone made a point that either GPS, or WiFI etc etc.. is searching and searching, and running the battery down. I see I have 'airplane mode' that turns the radio off, but then I wouldn't be able to send/receive calls. --I think there's a way to just turn off 'data', and leave T1xx up and running? (voice and SMS, but no IP / no apps)...?


Jim_in_VA

join:2004-07-11
Cobbs Creek, VA
kudos:4

1 recommendation

On my phone to turn data off it is: Settings>More>Mobile networks>uncheck Data enabled and Data roaming
--
... need help? »evdo-tips.com/


bbrcat
RIP Lisa
Premium,MVM
join:2000-12-09
NH
kudos:3
Reviews:
·Time Warner Cable
said by Jim_in_VA:

On my phone to turn data off it is: Settings>More>Mobile networks>uncheck Data enabled and Data roaming

Great idea indeed !
--
Team
Discovery


Hall
Premium,MVM
join:2000-04-28
Germantown, OH
kudos:2
reply to pflog
said by pflog:

You should NOT be using a task killer on Android 4.x.

Please stop spreading this FUD ! I've been hearing this since Android 1.6. Oh, and you forgot "Android is Linux-based - it doesn't need a task killer".

Why does HTC develop and include a task killer with their phones (others may as well but I've no experience - anyone know ?) ? Why does AOSP incorporate a task killer ?


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
said by Hall:

said by pflog:

You should NOT be using a task killer on Android 4.x.

Please stop spreading this FUD ! I've been hearing this since Android 1.6. Oh, and you forgot "Android is Linux-based - it doesn't need a task killer".

Why does HTC develop and include a task killer with their phones (others may as well but I've no experience - anyone know ?) ? Why does AOSP incorporate a task killer ?

It's not FUD. What YOU'RE spreading is FUD. If an app is written poorly and is constantly causing wakelocks and does not have a persistent service that restarts, killing it can help. But having an app that sits there killing things on an interval WILL cause worse battery drain with apps that aren't total junk.

The OP should be using better battery stats (or similar) to find the app that's misbehaving instead of running a task killer. Period.
--
"I drank what?" -Socrates


Hall
Premium,MVM
join:2000-04-28
Germantown, OH
kudos:2
reply to batsona
GPS only "activates" when an app requests it to. My GPS is always "on", or more like, "ready if needed". The GPS icon will appear in the status bar when it's actually working.

For WiFi, since you're driving, there's no use for WiFi as you'll never be in range of any access point long enough. Turn it off. You could adjust how often it scans for WiFi access points (basically it wakes up the WiFi interface looking for connections and notifies you if it finds any). The default interval varies wildly ! Mine is set at 360 seconds (6 minutes). If I have to, I can *force* it to re-scan if I go someplace with WiFi.

See if your device has a "sleep" mode or "nighttime" mode. It's like a pseudo-airplane mode. It generally dims the screen brightness, turns off data (WiFi, 3G/4G), but leaves cell data on so you can receive calls and text.


pflog
Bueller? Bueller?
Premium,MVM
join:2001-09-01
El Dorado Hills, CA
kudos:3
reply to Hall
»www.howtogeek.com/127388/htg-exp···android/

»www.droid-life.com/2011/06/02/re···eed-one/

»geekfor.me/faq/you-shouldnt-be-u···android/

I could find a dozen more. But you get the point. The first link explains in detail exactly what I said - while killing a misbehaving app is good, it's like using a shotgun to kill a fly. Find the misbehaving app, remove or disable it. Problem solved.
--
"I drank what?" -Socrates

ke4pym
Premium
join:2004-07-24
Charlotte, NC
Reviews:
·Northland Cable ..
·Time Warner Cable
·ooma
·VOIPO
·Verizon Broadban..
reply to batsona
Is your phone a 3G or 4G device?

What's your signal strength? The number 1 battery killer is the radio being on full-tilt to reach a cell site.

If your phone is 3G only, then you may want to update your roaming profile on occasion. To do this, dial *228. Then, I think, it's option 2. Option 1 should be to "program your phone".

This won't work on 4G devices.

zeddlar

join:2007-04-09
Jay, OK
Reviews:
·exede by ViaSat
·McDonald County ..
Ity is likely just that your used to your phone being in places where you get a good signal and when you are on long trips there are likely many places where your phone is trying to bring in a signal. Get the free version of the juice defender app and it will shut your data radio off anytime your phone is on standby and this will greatly improve battery life.Also if your phone has smart actions or something similar then set a couple of rules, the first one, tell it to turn wifi off when the display is off and the second, tell it to turn GPS off when the display is off.

I have the Moto Droid and spend at least 4 hours of my day in a steel shipping container that we use for an office and without these things my batter wont last an eight hour workday, with them....as i sit here now, my phone has been off the charger for 16 hours and has 40% left. If your wondering, outside the office I get 2 bars of 3G, inside that container I get one bar by the door and zip, zilch, nada 2 feet inside of the door.
--
HughesNet elite plan/.74 dish w/1watt trans. / 9000 modem / 3 computers on a linksy's wired network

batsona
Maryland

join:2004-04-17
Ellicott City, MD
Reviews:
·Vonage
·Verizon FiOS
reply to batsona
OP here.. Thanks for the lively conversation... I see that my phone has a 'sleep' mode, and also I see where I can turn data off, as Jim-in-VA said. I'll test this. TXT and Phone should stay up, but anything that relies on TCP/IP or GPS will temporarily fail, while I'm in this mode.

Then, once I reach my destination, and I'm geographically stationary, I'll turn data back on. Also, when away from home, I'll turn WiFi off.

Thanks for these suggestions! (Now I need to go on another long trip to test)!