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Anyone using Juice Defender?

Discussion in 'Android Devices' started by ifb-online, Jun 7, 2010.

  1. ifb-online

    ifb-online Well-Known Member
    Thread Starter
    78

    Mar 29, 2010
    725
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    Male
    Journalist and publisher
    Hemel Hempstead, UK
    I'm currently using the free version of Juice Defender. I'm not sure if your phone should be set with mobile data switched on or off while using Juice Defender. Does JD turn data on and then off with the phone set to off to start with, or should the phone be set to data on, so that JD can manage data access according to the chosen schedule?

    Ian
     

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  2. ifb-online

    ifb-online Well-Known Member
    Thread Starter
    78

    Mar 29, 2010
    725
    52
    78
    Male
    Journalist and publisher
    Hemel Hempstead, UK
    I decided to do a full to empty test and yesterday morning at 6:30AM the battery was 100% after an overnight charge. 26 hours later, and what I'd call average use, it's down to 2%. Very roughly, battery run down is 4% an hour. I'm use Juice Defender (free version) to maintain internet contact (2 minutes up time per half an hour). I was just wondering if this is what others are getting or whether there are som further optimisations I should be aiming for?

    Ian
     
  3. nx1977

    nx1977 Well-Known Member
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    Feb 8, 2010
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    In my experience turning on/off data connection with juice defender used more power than leaving on.
     
  4. jauhari

    jauhari Well-Known Member
    16

    Can anybody tell me, what the number that show up in desktop/screens mean. Example

    Battery life
    x2.16

    Sent from my HTC Desire
     
  5. Asheboy

    Asheboy Member
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    May 2, 2010
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    Im pretty sure it means that it is extending your battery life by 'x2.16' so by 216 percent.
     
  6. jauhari

    jauhari Well-Known Member
    16

    So if our icon said x2.16

    If without Juice need recharge in 24 hours,
    with juice it's will 24 x 2.16 = 52 hours?

    Is it right?
     
  7. b0ng0

    b0ng0 Well-Known Member
    16

    Apr 18, 2010
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    Aberdeen, UK
    Technically yes, but I've found that this isn't very accurate.

    I used JD quite a bit but never really got more battery life out of it. If you really want to extend battery life, just turn off mobile data when you don't need it - I can easily get 50+ hours doing this.
     
  8. adam1985

    adam1985 Well-Known Member
    18

    May 27, 2010
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    Mechanical Engineer
    Newcastle Upon Tyne
    Yea thats what it means but im not sure how it works it out?
     
  9. kopite72

    kopite72 Well-Known Member
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    May 3, 2010
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    I installed Juice Defender at the weekend, paid for the full version & was amazed how much longer the battery lasted. It finally ran out after 36 hours of moderate to heavy use, before this i was lucky to get 15-18 hours use. Also altered the screen brightness the same day so might of helped
     
  10. Nodders

    Nodders Well-Known Member
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    Feb 15, 2010
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    I installed JD and I fell foul of the APN reactivation thing, by which I mean when JD turns off the mobile network, I can't get it to turn back on without a reboot. Anyone suffer from this and/or know a workaround?
     
  11. mr.hachi

    mr.hachi Well-Known Member
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    May 26, 2010
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    UK
    I had no end of problems with JD, I just decided to remove it and pretend it never happened.
     
  12. nijbuck

    nijbuck Member
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    May 2, 2010
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    Hey Nodders. Suffered from exactly the same thing so have now un-installed. Shame as it really did extend my battery life!
     
  13. mirrorimage

    mirrorimage Well-Known Member
    38

    May 19, 2010
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    Ireland
    I've been using this for the last month now, and it really is a genius application.
    I did notice that the apn didn't go back on unless I did a reboot... I emailed the developer and he sorted it within a day!
    I'm a very heavy user, and now am getting a good day and a half out of it.
    Really, delete your task killer and use this; it works a treat!
     
  14. kobirulali

    kobirulali Well-Known Member
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    Jan 19, 2010
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    I too have the same problem (on UK o2)! Interesting point in emailing the developer, did they do a special custom version of the software for you or a patch?
     
  15. jauhari

    jauhari Well-Known Member
    16

    Can you tell me what's developed said to fix your problem? Because I got the problem too
     
  16. jauhari

    jauhari Well-Known Member
    16

    What's heavy usage that you mean? Sent/Receive SMS? Browsing the net? YouTube video?

    Or use HTC for CALL and SMS only?
     
  17. Pryomancer

    Pryomancer Well-Known Member
    98

    Mar 29, 2010
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    98
    Student
    Southampton, England
    It certainly isn't 216%. An application like that will not double your battery life. 2.16% is much more likely.
     
  18. ifb-online

    ifb-online Well-Known Member
    Thread Starter
    78

    Mar 29, 2010
    725
    52
    78
    Male
    Journalist and publisher
    Hemel Hempstead, UK
    I have monitored battery usage with just the phone enabled (no wifi or mobile data) and it's working out at 2% per hour. That's half the consumption compared to with Juice Defender on, but of course the phone isn't doing anything apart from waiting for a phone call or SMS message. 2% per hour means 2 days at a stretch but only with minimal use...
     
  19. kopite72

    kopite72 Well-Known Member
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    May 3, 2010
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    Sending lots of text. Surfing the net and about 3 or 4 hours listening to music. Also tested it when I went to sleep it only used 5% battery over 8 hours. Thought that was good.

    Been using msn lots tonight and the battery isnt as good so looks like MSN is a heavy battery user. Still on 60% after 5 hours very heavy use
     
  20. SUroot

    SUroot Well-Known Member
    1,123

    May 25, 2010
    23,925
    5,304
    1,123
    UK Technical Lead; Desktop Support
    Riddlesden, West Yorkshire, UK
    I tried it today to see if I could set nighttime silent mode but you need the pay app. I uninstalled it. Took me about 5 minutes after areboot to work out why I couldn't connect to mobile data network. It had changed my APn settings. I'm sure it probably states in the documentation that it does this, but I didn't read anything,

    D'oh
     
  21. mirrorimage

    mirrorimage Well-Known Member
    38

    May 19, 2010
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    38
    Ireland
    It needs to do that I think... it runs in the background; so it reads the time the APN is on and the amount of data it uses.
     
  22. SUroot

    SUroot Well-Known Member
    1,123

    May 25, 2010
    23,925
    5,304
    1,123
    UK Technical Lead; Desktop Support
    Riddlesden, West Yorkshire, UK
    It makes sense. But installed, played and uninstalled without knowing it had done it. I was worried for a moment.
     
  23. lifeonmtv

    lifeonmtv Well-Known Member
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    Jun 5, 2010
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    hmm so if u r not connecting to the internet u r better off without juice defender.

    but what about if u are planning to connect, would be keen to test that.

    1-phone with wifi battery % per hour
    2-phone with wifi and juice defender % per hour
    3-phone with 3g battery % per hour
    4-phone with 3g and juice defender % per hour
    (I guess the results would vary according to how many/which apps u r running)

    might have a go at that some time.
     
  24. Nodders

    Nodders Well-Known Member
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    Feb 15, 2010
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    Yup. The big thing JD does is to manage APN (and WiFi on the paid version) depending on usage (i.e time of day, whether the screen is on/traffic is in flow, proportion of each hour to switch on etc). If you don't use APN in particular then you wont see much benefit from JD even theoretically.
     
  25. arj2442

    arj2442 Active Member
    36

    Apr 22, 2010
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    Hi there, ive just uninstalled JD myself and lost my 3g connection....can you guide me briefly how to get it back im lost.

    Cheers
     
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