New Delphi Myfi Problem

Discussion in 'XM Radios' started by romad, Jan 4, 2019.

  1. romad

    romad New Member

    This past week while I was in Prescott, AZ my radio started doing a weird power down/power up thing. It would power down for about 10 seconds then power up and work for another 10 - 15 seconds, then repeat several times before working fine until the next day. It had worked fine most of the day but started doing this when I came out of a movie theater. I thought it might be the Car adapter or power adapter.

    Well, now that I'm back in California I put the MyFi in the mount installed in my Jetta with power hardwired, and the same thing happens where it didn't before. It works fine after a few of these cycles. Maybe it has to warm up from generated heat?

    Anyone have a similar problem?
    hyson likes this.
  2. HecticArt

    HecticArt Administrator

    One of my older (non-Delphi) radios did something similar. I replaced the battery and it took care of it.
  3. romad

    romad New Member

    This is a fairly new battery, less than 2 years old. The battery it replaced was the original battery from 2005.
  4. IdRatherBeSkiing

    IdRatherBeSkiing Sherbert is not and never will be ice cream

    If the battery gets too hot or too cold I think they go a bit wonky. I remember reading about that on forums back in the day where everybody had an AirWare or a MyFi.
  5. romad

    romad New Member

    I know that my unit display conks out when it is too hot; I fixed that by aiming one of my center vents at it so the cold A/C air hits it. I'll order a new battery and see what happens.
  6. geosync

    geosync Well-Known Member

    Too hot!! Just like your receiver, or amplifier, but not your computer.
  7. romad

    romad New Member

    Well, I decided to try reconditioning the battery first. I brought the unit inside and mounted it into the Home cradle. I then let it charge for 48 hours before putting it back in the car. It has worked flawlessly since. I still ordered a new battery to have on hand.
    goreds2 and HecticArt like this.
  8. goreds2

    goreds2 Well-Known Member

    Glad you fixed it. I have had a myfi in the same truck for 14 years.
  9. romad

    romad New Member

    I've had mine since June of '05; I move it to whichever car I'm driving at the time. Usually this is between my Miata and my Jetta Wagon TDI, with occasional trips in my wife's Prius; right now the Miata is in storage so it is mostly in the Jetta.

    HecticArt and goreds2 like this.
  10. geosync

    geosync Well-Known Member

    Wow what a tough old beast. After I disconnected my Inno's all but one turned into digital mush. Don't cancel it until you're ready to give it up.
  11. romad

    romad New Member

    Well, I DID have to replace the original battery in January 2017. I think the sub-freezing temperatures in Prescott, AZ over the holidays caused this problem. Once I "reconditioned" it, it has worked flawlessly; of course the temps here in Oroville, CA are above freezing plus the car is in the garage.

    Edit. I thought I replaced the original battery in 2016 but it was actually in 2017.
    HecticArt likes this.

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