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Enable Battery Percentage in iOS 4 on iPhone 3G without Redsn0w

Posted by Ben on June 26, 2010

Using PwnageTool or Sn0wbreeze for jailbreaking iOS 4 on iPhone 3G won't show battery percentage beside the battery icon in status bar of your iPhone. Acc. to Steve Jobs, some options were disabled in iOS 4 for iPhone 3G to ensure the optimal user experience. However i don't think enabling options like battery percentage will consume much resources of your iPhone and will effect your user experience at all.

Remember: If you will jailbreak iOS 4 on iPhone 3G with Redsn0w, you will get an option to enable battery percentage during the jailbreaking process but it will also upgrade your baseband to 05.13.04 which still can be unlocked via Ultrasn0w 0.93.

Battery Demo

However if you used PwnageTool or Sn0wbreeze, you can enable battery percentage by using the following guide.

Enable Battery Percentage on iPhone 3G Running iOS 4

  1. First step is to install iFile on your iPhone / iPod Touch. You can find step-by-step guide here for iFile installation on iOS 4.0
  2. Open "iFile" and and go to "root" directory. Tab on top left corner of your screen, it will take you root (/) directory.

    3. iFile Root Directory

  3. Go to /System/Library/CoreServices/SpringBoard.app and look for N82AP.plist file.

    4. N82AP.plist File

  4. Once you will open N82AP.plist file, you will see the coding regarding your iPhone functions, you will need to edit the file and add "Battery Percentage" function to it and set it to "TRUE".
  5. Tab on "Edit" on top left corner of your screen.
  6. To enable Battery Percentage add following strings to N82AP.plist file.

    7. <key>gas-gauge-battery</key>
    <true/>

    Battery Percentage

  7. One you are done with adding these strings, just tab on "Save" and "Done" and close the iFile app.
  8. Restart or respiring your iPhone 3G and now you will see numeric percentage of your battery beside the battery icon in status bar of your phone.


  • lema

    Worked for me, thanks. Using iphone 3G with iOS4.2.1

  • SAM

    It worked for me. I'm using iPhone 3G iOS 4. THANKS! :D

  • Debarshi

    Fantastic..Thank you so much..

  • CBS

    It did not work to me :-( Now it is rebooting itself constantly with no success. It has been doing it for the last 2 hours Ill wait for the battery to be gone and let you know later I hope it works I would not like to restore it just because of this!

  • http://www.dyca-computers.nl pretendor

    Guys,

    i have found some intressting thing

    you can set background by adding this string is the file that was named above

    multitasking

    homescreen-wallpaper

    gas-gauge-battery

    you need to add the homescreen-wallpaper rule between the multitasking and gas-guage-battery

    greatz

  • http://www.dyca-computers.nl pretendor

    thnx works great for me is it also possible to add a string to change your background images on your springboard?

    please help!!

  • Chris

    My file got corrupted upon reboot and not its 0 bytes.... doesnt work of 4G Touch 4.1

  • cocozemarrior

    Hello when i put the strings that says that the file cannot be edited i've got an itouch 3G in 4.1 jb with greenposiOn

  • jomat

    yeah it work's perfect thanks!!!

  • Ramiro

    Thanks my friend. This Works perfect on 3G

  • Reb00t

    Nice works fine on Iphone 3G

    But I had to go

    Settings > General > Usage - And activate Battery precentages

    :)

  • Bandaid

    After adding those lines to the plist file, goto:

    Settings>General>Usage> and turn Battery Percentage On

  • Zach

    I tried this on my Ipod Touch 3G, and it didn't work. the .plist file is the same title as the file from a 2G ipod (N72AP.plist) and i added the the right strings. upon reboot i don't have a battery percentage meter, and it's not anywhere in settings (i looked everywhere). is anybody able to help?

  • Peter

    Everytime i put the "battery" String after "marketing Name/iPhone 3G" the program removes the string automatickly under "device-name/iPhone". I don't kno why but it doesn't work this way. Can anyone help me?

    • Peter

      Sorry... IT WORKS .. i just forgot to enable the "Battery Percentage" under "Settings -> General -> Usage". That is important Step that this description doesn't mention :-)

      • http://jaxov.com/ Wolverine

        Thankyou Peter for confirming :)

  • Jack

    Hooo! Hoo! It worked after the reboot. Thankyou :D

  • Jose Manuel Franco Gonzalez De Rivera Consuelo

    I did it all but my 3g isnt picking it up. Help anyone!!

  • Jose

    Hey I did every thing but I don't have the N82AP.plist thing only N72AP.plist and it won't work on that one help?

    • http://jaxov.com/ Wolverine

      M68AP.plist (iPhone 2G)
      N82AP.plist (iPhone 3G)
      N45AP.plist (iPod Touch 1G) or N72AP.plist (iPod Touch 2G).

      • Jose

        o ok then i have the 2g thats why thanks