- 212 Posts
[Official] D2 & D2G Battery Life Discussion
I am new to the Droid 2 Global coming from Blackberry. I had battery life issues there but was able to fix that by tweeking the Storm. Now since I got the D2 Global it seems that all I do is charge it. I have installed Advanced Task Killer but I still get poor battery life. I have tried to tweek many of the adjustments as I can but not good.
Any suggestions all will be welcome and tried.
Last edited by iamlilysdad; 12-07-2010 at 11:51 PM.
- 11-12-2010, 08:07 PM #2
- 11-13-2010, 07:00 AM #3
- 11-13-2010, 01:17 PM #4
- 468 Posts
Do some inventory of the apps you have installed, check their settings, and make sure they aren't constantly polling for info or updates.
This one girl was on Twitter, complaining that her G2 had awful battery life. I also noticed she was updating from Tweetdeck. Tweetdeck (for reasons unbeknownst to me) defaults all of its columns to check for updates like every five minutes. I advised her to alter those options, and she said her battery life has improved.
Anyway, you may not use Tweetdeck, but there is a possibility that you have applications that are polling for updates too frequently. Maybe even a mail account that you don't have setup for push.
- 11-13-2010, 01:58 PM #5
- 11-13-2010, 05:52 PM #6
- 11-15-2010, 12:25 PM #8
- 11-15-2010, 07:02 PM #9
- 11-16-2010, 07:34 PM #10
I'm having the same issue. I got my D2G on Monday. Installed Android Central widget, Timeriffic and TouchDown.
I had my phone charging in the car all the way to work. 8:30, got out of the car. 1:30 looked at my phone and it was < 15% and telling me to plug it in immediately.
That's no good. Basically just an email app running and I can only get halfway through a work day??? No good at all.
I would take off the RSS feed widgets that came on it, but I don't think they do much all day.
I had all radios off except cell and BT (which I probably could have turned off, but use it in my car in the morning and evening so that's a PITA). Cell is set to CDMA Only.
Maybe it's the 1.2Ghz outpacing the battery? It's bad.
Anyone got any further troubleshooting ideas???
- 11-16-2010, 08:40 PM #11
- 11-16-2010, 09:29 PM #12
But check your apps. Maybe do a test when you can deal with being disconnected for a bit - use the power widget to turn off bluetooth, wifi, and background data sync. See if the battery then lasts fine. If it does it's probably either bluetooth or some app you have running that is constantly checking for updates. Even on the iPhone email push/fetch drains the battery dramatically. When I first got an iPhone the battery wouldn't even last a full day and it turned out the email was set to constantly fetch mail. Once I turned that off it was fine. At least this way you can narrow it down and change settings accordingly.
- 11-17-2010, 08:13 AM #13
I fully respect your methodological troubleshooting approach. I guess I was looking for "the magic bullet", which more often than not, doesn't exist.
I need near-real-time email delivery, so disabling the background data is absolutely contrary to what I need a smartphone to do (coming from a crackberry Storm which had no issues lasting all day even if it was a huge battery hog compared to other BB's). It would not be a compromise I could make and drive me to another phone.
I'm going to let it run today and see what the battery details say are my top abusers, then run some trials with BT disabled. The problem with disabling BT is that I fully expect my phone to automatically connect to my car's handsfree when I get in. If I have to force myself to remember to turn it on getting in the car, and disable it getting out of the car, I feel like I'm doing the phone's job and (vice-versa) the phone is not doing its job.
Love Android, love the features of this phone, but if it can't last at least 8-10hrs a day, it won't last.
Thanks again for the feedback,
- 11-17-2010, 08:16 AM #14
- 11-17-2010, 09:59 AM #15
Anyhow, best of luck with it!
- 11-17-2010, 12:39 PM #16
Some add'l info
So running all morning (unplugged since about 7:30AM), thus 6hrs, with Wifi on, and all other radios off. Now at 30% Battery.
Details (Top 5) :
Display = 23%
Android System = 14%
WiFi = 13%
Phone Idle = 13%
Cell Standby = 11%
Unfortunately, there's not a lot I can do about the display. I suppose I could go to manual brightness or something.
Same thing with "Android System". I guess there's nothing I can do about that.
Wi-Fi I could turn off I guess, but I'm connected to my preferred network all the time, I don't like the idea that I should have to manually turn that off and on when I want to use my phone's apps...
There's really no indication that it's the network traffic that is causing my poor battery life (by way of looking at the list).
So that brings me to my big Q's:
What are "Phone Idle" and "Cell Standby" and why the heck are two items that would seem to be very innocuous using almost 1/4 of my battery???
Anyone know what these are and whether they can be reigned-in somehow?
- 11-17-2010, 01:09 PM #17
- 11-18-2010, 11:37 AM #18
- 11-18-2010, 07:01 PM #19
I shut off all the radios today and after 7hrs, it only went down to about 60%, which is night-and-day better than yesterday's test.
So it looks like the radios (BT or WiFi, and I assume GPS) are the culprit.
But having to remember to turn my BT on just before I turn the car on, and then turn it off when I get out of the car is going to be a real PITA. Need to find a better way...
- 11-19-2010, 03:50 PM #20
The amazing Droid 2 Global the first of its kind corded cell phone. A battery life guaranteed for 1 call or your money back. WOW does Motorola ever test the design and function of their phones? I am taking my 2nd D2 Global back to Verizon ASAP What a peice of junk. HTC is by far the best Droid Mfg.
- 11-19-2010, 09:31 PM #21
- 11-20-2010, 04:35 PM #22
Don't take my results as "gospel". I'm guessing that as they keep increasing the default speed of the CPU, for the same chip, it's just continuing to shorten battery life proportionally.
But again, I'm really theorizing right now. I love the hardware, love Android and love the ability to go global. Unless I get to handle the Merge in the next two weeks and really think it's "that much better", this will be a keeper. I have no doubt that if I root and underclock (when the display is off), I will have tons better battery life.
Will keep working on it.
- 11-20-2010, 08:16 PM #23
- 11-24-2010, 02:27 PM #24
I had the D2 for two weeks and had no issues with battery life. I switched to the D2G while still under the 30 day exchange policy and now my battery life is terribad with the exact same apps and config.
Here's a breakdown of my usage. Granted I have 3 apps that appear in the list at 2% each making for 6% of the drain, which is negligible. Also I could turn off WiFi, but lets be honest, that's not what's causing this terrible battery life.
Battery currently at 50% after 5 hours unplugged with a max of 5 min usage (checked Facebook)
Cell standby - 28%
Phone Idle -19%
Android system - 14%
Display - 10%
WiFi - 5%
com.motorola.service.man - 4%
Data Manager Service - 3%
Watchdog - 2%
LauncherPro - 2%
Android OS - 2%
Weatherbug Elite - 2%
- 11-24-2010, 03:23 PM #25
Wow, thanks for that. I really wanted to know if there's a difference between the D2 and the D2G and you really answered my question there. So it's starting to look like they overclocked the same CPU which is causing more drain huh? As much as I wanted my D2 to be set for international use at this point I've already figured it's easier to get and use a cheap prepaid worldphone. No contract and I don't mind having two devices on my belt, already have a work blackberry on my belt alongside my phone and I don't take that on vacations so
Besides, I only ever need the phone internationally for emergency situations or quick calls home, so it's like a total of 15-20 full minutes talk time for each entire trip. Not really a big deal. Anyhow, thanks again for the info!