Replacing battery on 2003 Accord without losing Navi info

Discussion in 'Accord' started by ventura, Jan 25, 2008.

  1. ventura

    ventura Guest

    Has anyone been able to do this? I need to change the battery on my
    2003 Accord and I'd prefer not to lose all the addresses I've entered
    in the Navigation system. Perhaps I can connect another battery
    through the power port in the console to maintain power to the system?
    Thanks for any advice!
    ventura, Jan 25, 2008
  2. ventura

    E Meyer Guest

    Not sure if the 2003 is the same as the 2000 I used to have, but changing
    the battery on the 2000 did not clear any nav info. You did, however, have
    to re-enter the security codes on both the radio and the nav and you lost
    the radio presets.
    E Meyer, Jan 25, 2008
  3. ventura

    bearman Guest

    I can't speak to the navigation system but I've always been able to keep my
    radio stations by hooking a 9V battery across the battery leads. The 9V
    battery keeps the radio memory alive. I've done it three or four times with
    no ill effects.
    bearman, Jan 25, 2008
  4. ventura

    motsco_ Guest


    _If_ you use the 'cigarette lighter' port, you have the key turned to
    the Accessory position (or is it position II?), since that one is dead
    when car is shut off.

    motsco_, Jan 25, 2008
  5. ventura

    Woody Guest

    Changing the battery will not reset non-volitile memory in the unit but you
    will need the security code if it has one.
    Woody, Jan 26, 2008
  6. I can't be sure about the navigation system but I have been successful
    in changing the battery in a number of cars without losing any data,
    settings etc. by doing this: I connect a 12DC volt power supply to the
    battery cable terminals--when the cables are removed from the battery,
    12 volts DC is still powering the system and nothing is lost.

    Kenneth J. Harris, Jan 26, 2008
  7. ventura

    Dano58 Guest

    Is it an OEM navi system - i.e., it came with the car originally? I
    would have to believe that there is some sort of short-term memory
    built in, kind of like a Palm, that allows you a period of time
    without power without dumping all the data. Your owner's manual may

    Dan D
    '07 Ody EX
    Central NJ USA
    Dano58, Jan 28, 2008
  8. ventura

    metronb5 Guest

    Thanks for all the suggestions. I'll try the ones involving a second
    12v battery, either connected directly or through the power port.

    To answer the questions -- this is the factory installed navigation
    system and unfortunately doesn't have a memory protect feature like a
    Palm. The owner's manual says that any addresses entered by the user
    will be erased when the battery is disconnected, so the 2003 model
    must work differently from the 2000 model.

    I don't mind entering a security code to reactivate the radio and
    navigation system after changing the battery (hopefully this has
    reduced thefts of these items), but losing 50 or 60 addresses is a bit
    much. Honda needs to rethink this one! Switching to non-volatile
    memory (like most cell phones) seems like the best solution.
    metronb5, Jan 29, 2008
  9. ventura

    metronb5 Guest

    Update ---

    I was successful in doing this by plugging a 12 volt battery into the
    power port.

    Thanks again to everyone for your suggestions.
    metronb5, Feb 2, 2008
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