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Electronics Cell phone modding

Discussion in 'Modding' started by Isuo, 12 Jul 2007.

  1. Isuo

    Isuo What's a Dremel?

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    Ok, what I'm planning to do is leave my cell phone battery and start using normal batteries instead. My problem is, however the middle pin (SE J100i).
    I mean the pin which shows the charge of the battery.
    So the thing goes, what do I have to connect in that pin to make the phone show the charge of any given battery?

    I got an answer to this from a cell phone forum, and apparently the cell phone batteris have the feature built in them, but I don't really trust them too much. Would there be a way to hack the battery open and connect a couple of wires or something?

    The second thing is, that If I bought one of those battery charge status showing gizmos, do they drain energy in the long run?


    PS; looks like the forums have changed once again and I don't like them one bit...
     
  2. DarkLord7854

    DarkLord7854 What's a Dremel?

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    You're saying you want your phone to run on AA batteries? o_O

    What kind of phone is it? I have a phone which runs on AA rechargeable batteries but it's got a European charger, granted, the batteries are encased, and it doesn't even last a day on full charge, much less if I make calls :p
     
  3. Isuo

    Isuo What's a Dremel?

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    Exactly!
    It's the SonyEricsson j100i, small basic phone (nomp3, camera, radio...). It has got a 900mAh battery, but I don't like it too much.
    The thing why I want to make it, is to keep the phone going for a year with one charge. If that means a garage full of car batteries, then so be it.
    Well, maybe not for a year, but anyways longer than a week...
     
  4. const_

    const_ What's a Dremel?

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    from what i understand is you got some kind of project that require a phone battery lasting very very long time and not planing to make it portable.

    try thinking green ! how about solar panels? giant ones. wouldn't that be cool ?? a phone with a fat cluster of batteries and a big solar panel that recharges it.

    battery charge = infinity, no need for any circuitry to show battery status

    just an idea though
     
  5. Isuo

    Isuo What's a Dremel?

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    Hmmhmm, solar panels would be nice, but I don't know any decent priced shops from where I could buy them (I live in Europe).
     
    Last edited: 13 Jul 2007
  6. jakenbake

    jakenbake full duplex

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    ya, if you have the money. they cost a fortune for not-so-great efficiency.
     
  7. C-Sniper

    C-Sniper Stop Trolling this space Ądmins!

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    use a kinetic energy device that as you walk, recharges it.
     
  8. Koradhil

    Koradhil What's a Dremel?

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    If you don't need it to be portable, why don't you just keep it connected to the charger?
    Would probably be easier to get a 12V car charger and hook that up to 12V batteries.
     
  9. Krikkit

    Krikkit All glory to the hypnotoad! Super Moderator

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    The only problem with trying to run it on batteries is that the normal battery usually gives out an unusual, consistant voltage to the phone (afaik) - whereas AA batteries vary their voltage dependant on their charge.
     
  10. Isuo

    Isuo What's a Dremel?

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    Using a car battery would robably be the easiest way. I suppose a car battery would last a long time, but does anyone know the mAh- thing of a car battery?

    e: Korad: Do you know any proper electorincs shops in Holland or Belgium?
     
  11. Koradhil

    Koradhil What's a Dremel?

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  12. Isuo

    Isuo What's a Dremel?

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    Excellent, thank you!
     

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