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Support Fastest way to drain the battery

Discussion in 'Android Devices' started by blindnoir, Apr 6, 2010.

  1. blindnoir

    blindnoir Newbie
    Thread Starter
    36

    Apr 3, 2010
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    Midwest
    I want to drain my battery to the very end and then recharge it so I was wondering what to do to really waste the battery really fast. I have the display on the brightest setting, bluetooth and WiFi on. What apps really drain the battery? I tried Sprint TV but it kicked me off the WiFi
     

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  2. TheSultan

    TheSultan Android Expert
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    Mar 6, 2010
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    Operations Manager
    Rochester, NY
    ebuddy kills mine!
     
  3. cosine83

    cosine83 Well-Known Member
    58

    Feb 11, 2010
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    Systems Technician
    Henderson, NV
    Just use an IM app and use that to do all your IMing until the battery drains. Should be out within a couple hours of constant use.
     
  4. dwolf312

    dwolf312 Well-Known Member
    38

    Apr 4, 2010
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    SDX Tester hahaha
    Lycopolis
    Use moment flash the flashlight app and turn on fullbright be kill it fast.
     
  5. i VTAK

    i VTAK Android Expert
    98

    Feb 10, 2010
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    Indiana,USA

    We got the flashlight app on my wifes phone. Some of the comments reported blowing the flash on thier phone from the bright setting, I'd be careful with that.

    Tubedownloader is an app that downloads video from YouTube. The free version can download 2 videos at once, your battery will last 2-3 hours tops. If you can get somewhere with poor signal while doing it, maybe quicker.
     
  6. dwolf312

    dwolf312 Well-Known Member
    38

    Apr 4, 2010
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    SDX Tester hahaha
    Lycopolis
    Eh either way I see it blowing because the camera when taking pics the flash is fullbright at least it looks like that's why I keep it off anyway, but the app moment flash I use the reg not fullbright because it's blinding and only when I really need too.
     
  7. blindnoir

    blindnoir Newbie
    Thread Starter
    36

    Apr 3, 2010
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    Midwest
    Awesome, thanks for the feedback, just one follow up question. When my battery is completely dead the phone will just turn off by itself, it wont go into some weird stand by mode or anything?
     
  8. dwolf312

    dwolf312 Well-Known Member
    38

    Apr 4, 2010
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    SDX Tester hahaha
    Lycopolis
    Yeah it shuts completely down till you recharge it which make sure it's fully recharged before turning it back on so you get completely full battery.
     
    blindnoir likes this.
  9. numus

    68

    Nov 23, 2009
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    I would highly recommend you not do this.. unless you enjoy shortened battery life
     
  10. blindnoir

    blindnoir Newbie
    Thread Starter
    36

    Apr 3, 2010
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    Midwest
    How so? I thought it was good to drain the battery to condition it.
     
  11. decalex

    decalex Android Enthusiast
    38

    Nov 7, 2009
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    Graphic Designer/Art Director
    Orange County, CA
    I'm blanking on the name of the game -- but it's a popular one where you race a little spaceship on a track (would prob work with any of those games)-- it uses the accelerometer and super CPU intensive. Before the CL14 update, when we were all trying to temper our batteries, I used to set my screen to Never timeout, start the game, and just set it on its side. The ship would spin round n round until the battery died. Good times.
     
  12. Othan1

    Othan1 Android Enthusiast
    43

    Jan 7, 2010
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    Garbage Man...as far as you know
    San Diego
    Numus has written extensively about the different between lithium ion batteries (ours) and other types and the whole techno-mumbo jumbo that it entails. Do a search on the forums here and you can find it.

    I just tend to listen to him at this point. Heh.
     
  13. BlackInjun

    BlackInjun Member
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    Jan 17, 2010
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    Maryland
    That guide was one of the first things I read and ignored because of everyone elses post to the contrary.

    Did not realize it was Numus, so I guess I can look forward to buying a new battery early
     
  14. OneCraftySAHM

    OneCraftySAHM Member
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    Mar 10, 2010
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    I did this the other day and it didn't do a darn thing for me....good or bad...battery still sucks. I've even accomplished root and removed Sprint apps and I still can't use my Moment heavily without it dying in a few hours.
     
  15. BlackInjun

    BlackInjun Member
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    Jan 17, 2010
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    Maryland
    Install Spare Parts look at partial wake lock after unplugging the phone and leaving the screen off. Also check usage details to see the number of times an app is starting. Leave the phone sleep for 10 minutes (screen off) This should tell you what is running and using the battery. You can also check out advanced task killer free, start the phone up see whats running under apps then after 5 minutes check again and see if any 3rd party apps are still running.

    Last resort Uninstall everything (or better yet reflash stock) and reinstall 2-3 apps at a time while checking under spare parts as you install. In this case you can let the phone sleep for 1 minute between install batches, as long as the battery history running time is less than 100 the previously installed app(s) should be fine. If after you install 2 or 3 then your running time is 100 then it was one of those and you have narrowed it down.

    Lastly keep this in mind even if you use the last method and your apps are safe and not running after install, sometimes an app does not start acting up until you start it and accept the terms for the first time.

    If you have any app that is following your location like movies or weather that will definitely kill the battery within the time frame you are talking about, turn those options off trust me I know.

    The optimum results should be running time as close as possible to screen on time 5-8% is good. Also the lower your screen on time the longer your battery should last. If you are new you may not believe this but my wifes moment which she mostly uses for callls and does not have a lot of apps on will run an average of 26 hours without recharging.
     
  16. CriticalCritic

    CriticalCritic Android Expert
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    Nov 9, 2009
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    Cary, NC
    He's right, however the battery cycling procedure was not being implemented to train the battery, but rather, to train the cj05 battery meter software to get a more accurate reading. So it really is pointless and will only serve to harm your battery if you are running cl14.
     
  17. OneCraftySAHM

    OneCraftySAHM Member
    16

    Mar 10, 2010
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    Thank you for this info! I've had ATK for awhile and I just downloaded Spare Parts last night....hopefully this will give me a bit more information. I also reflashed stock yesterday, and started from scratch using Zefie's kernel. I'd say at the moment I only have about 20 apps. The only thing I have following my location is Beautiful Widgets. I don't have a great signal at my house so I know that contributes quite a bit too but I came from a Blackberry Curve and I only ever drained the battery on that thing once! I know I'm complaining but I seriously love this phone, I just wish I could get the battery to last longer.
     
  18. numus

    68

    Nov 23, 2009
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    Placebo effect on "training" the cj05 battery meter software... After i ripped apart the code for cj05 i quickly found out there was no calibration and modification variables ANYWHERE... Only variables would exist in the ADC circuitry and that is a hardware implementation that wouldn't have an effect.. All values for the battery meter code were hardcoded in, and that is where the problem existed..
    CL14 Battery Code Update Process

    I will outline some primary differences in the header files that correspond to the battery meter reporting variables and how the phone gauges its current capacity...
    All lines will be written as this:
    CJ05 (stock)
    CL14 (stock)
    CJ05 - My Modifications based off behold II values
    CL14 - My modifications based off Sprint CL14 and Behold II

    #define BATT_FULL 46 /* 4.04V */
    #define BATT_FULL 40 /* 3.98V */
    #define BATT_FULL 49 /* 4.07V 90%*/
    #define BATT_FULL 40 /* 3.98V 90*/

    #define BATT_SAFE_RECHARGE 43 /* 4.00V */
    #define BATT_SAFE_RECHARGE 51 /* 4.10V */
    #define BATT_SAFE_RECHARGE 43 /* 4.00V */
    #define BATT_SAFE_RECHARGE 51 /* 4.10V */

    #define BATT_CRITICAL 10 /* 3.63V */#define BATT_CRITICAL 3 /* 3.55V */
    #define BATT_CRITICAL 8 /* 3.58V 5%*/
    #define BATT_CRITICAL 3 /* 3.55V 5*/


    That is the stock vs my modifications..
    Then for my modifications cj05 vs cl14

    CJ05:
    #define BATT_CAL 296 /* 3.49V */

    #define BATT_MAXIMUM 58 /* 4.18V 100%*/
    #define BATT_FULL 49 /* 4.07V 90%*/
    #define BATT_SAFE_RECHARGE 43 /* 4.00V */
    #define BATT_EIGHT 42 /* 3.99V 80%*/
    #define BATT_ALMOST_FULL 35 /* 3.91V 70%*/
    #define BATT_SIX 31 /* 3.86V 60%*/
    #define BATT_HIGH 26 /* 3.8V 50%*/
    #define BATT_FOUR 22 /* 3.75V 40%*/
    #define BATT_MED 18 /* 3.7V 30%*/
    #define BATT_TWO 14 /* 3.65V 20%*/
    #define BATT_LOW 10 /* 3.6V 10%*/
    #define BATT_CRITICAL 8 /* 3.58V 5%*/
    #define BATT_MINIMUM (-2) /* 3.49V */
    #define BATT_OFF (-8) /* 3.40V */

    CL14:
    #define BATT_CAL 296 /* 3.49V */
    #define BATT_MAXIMUM 59 /* 4.19V */
    #define BATT_SAFE_RECHARGE 51 /* 4.10V */
    #define BATT_FULL 40 /* 3.98V 90*/
    #define BATT_ALMOST_FULL 29 /* 3.85V 70*/
    #define BATT_HIGH 21 /* 3.75V 50*/
    #define BATT_MED 17 /* 3.71V 30*/
    #define BATT_LOW 12 /* 3.65V 15*/
    #define BATT_CRITICAL 3 /* 3.55V 5*/
    #define BATT_MINIMUM (-2) /* 3.49V 3*/
    #define BATT_OFF (-8) /* 3.40V 1*/
    #define BATT_EIGHT 35 /* 80%*/
    #define BATT_SIX 25 /* 60%*/
    #define BATT_FOUR 19 /* 40%*/
    #define BATT_TWO 15 /* 20%*/

    You can see a change in what i called 50% before and what i called it after... this is where the "usable" battery levels come from
     

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