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  1. #1
    Wayne Peacock
    Guest
    Hi All,

    Does anyone out there have details on the battery connections? I wish
    replace the battery with a power supply for an embedded system. Yes I am
    aware there are high peak currents involved!

    I know the two outer pins are the battery cct. I assume the two inner
    pins are a thermistor and battery type sense?

    What voltage does the phones processor & electronics run on? Most
    embedded GSM modules are 3.7 volts, so I would have to assume the 3310
    runs directly from a unregulated battery?

    Also, I assume the F-Bus and M-Bus pins are 3.6 Volt logic?

    Regards
    Wayne





    See More: Nokia 3310/3315 Battery Pinout




  2. #2
    tuned by RZO
    Guest

    Re: Nokia 3310/3315 Battery Pinout

    Wayne Peacock wrote:
    >> Hi All,
    >>
    >> Does anyone out there have details on the battery connections? I wish
    >> replace the battery with a power supply for an embedded system. Yes
    >> I am aware there are high peak currents involved!
    >>
    >> I know the two outer pins are the battery cct. I assume the two inner
    >> pins are a thermistor and battery type sense?


    [ [1][2][3][4]] <<battery contacts
    1, 4 are the + and - contacts for the 3.6V from the battery
    2 and 3 is the discharge resistor, no? They seem to have very high
    resistance when I test them together (2 and 3) with a multitester.

    >>
    >> What voltage does the phones processor & electronics run on? Most
    >> embedded GSM modules are 3.7 volts, so I would have to assume the
    >> 3310 runs directly from a unregulated battery?


    Yes, an unregulated battery; the phone electronics MUST run on a voltage
    above 3.0V (if not the LEDs flicker and the phone'll say battery empty), but
    it'll say 3.1-3.2V as a "low battery". Usually on a full charge its running
    on a 4.0-4.15V battery - but half-charge (2 bars) it'll be around 3.5-3.7V.

    >>
    >> Also, I assume the F-Bus and M-Bus pins are 3.6 Volt logic?


    Have to look this one up though.

    >>
    >> Regards
    >> Wayne






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