What's inside an iBook battery?

Discussion in 'PowerPC Macs' started by poiihy, Jun 12, 2015.

  1. poiihy macrumors 68020

    poiihy

    Joined:
    Aug 22, 2014
    #1
    What kind of cells are inside an iBook battery pack? Does it have cylindrical 18650 3.6v lithium cells, or does it have flat sandwich cells?
     
  2. RedCroissant Suspended

    Joined:
    Aug 13, 2011
    #2
    cylindrical as far as I can remember. An iBook battery that I had once started separating and I was tempted to get in there and start replacing stuff but decided against it.
     
  3. poiihy thread starter macrumors 68020

    poiihy

    Joined:
    Aug 22, 2014
    #3
    Really? Cool! It would be great if they were 18650. Many flashlights use 18650.
     
  4. CapnCrunch53 macrumors member

    CapnCrunch53

    Joined:
    Sep 9, 2012
    Location:
    Indiana
    #4
    Assuming you're talking about the white iBooks, it looks like they are indeed 18650s, at least according to this video:
     
  5. poiihy thread starter macrumors 68020

    poiihy

    Joined:
    Aug 22, 2014
    #5
    OMG, that's great!! I can reuse the cells for flashlights! :D
     
  6. LightBulbFun macrumors 6502a

    LightBulbFun

    Joined:
    Nov 17, 2013
    Location:
    London UK
    #6
    Just have to ask tho why would you? working iBook G3/G4 batteries that still hold a good charge are rather hard to find and tearing one apart just for some batteries that you can get at the store is a bit sad tbh
     
  7. poiihy thread starter macrumors 68020

    poiihy

    Joined:
    Aug 22, 2014
    #7
    Why not? I already have an iBook battery.
     
  8. happyfrappy macrumors 6502

    Joined:
    Oct 14, 2007
    Location:
    Location eh?
    #8
    If the battery health of an existing battery pack is >20%, better to repack than risk it hitting critical/replacement alert or OS/power management activates the battery's safety fuse circuit as you can't reset the status once triggered/activated... seen this happen on iBook G3-G4/PowerBook G4 & Thinkpad batteries quite a bit at the 8-12% capacity point.
     

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