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  • BU-353 battery

    Keeps last stored position , date ,time , satellite data. I have some questions:

    1-This battery is rechargeble?
    2-What happens end of life? Can we change it?
    3-I bought my BU-353 at 2011. its 3 years old. Battery may died? its important if battery died? Or its not important. Can still work but late fix to satellites?

  • #2
    why are you asking/? i wasn't aware there is a battery on the inside.
    CarPc
    Project "Driver"

    Planning [99.9%]

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    Installation & Fabrication [98%]

    Total Completion Level [96.9 %]

    http://www.mp3car.com/vbulletin/work...ct-driver.html

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    • #3
      Fixing satellites too late. I just want to know reason is dead battery?

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      • #4
        Might be. When my battery on a different receiver (ublox5) went weak (after 2 years), it was sometimes not found on USB anymore and took very long time to get charged again and then also only lasted a few days without power before being not found again.
        I tried to change the battery, but it was built in, so I had to buy a new receiver.
        Its a big deal for me since I only drive my car in spring and summer. The rest of the year it sits in a cold garage without power to the battery and I guess thats not so good for it. I hope this time it lasts longer, but its already a year old again. It seems to get fixes very slow after it was without power for a long time, but once the battery has been charged for half a day or so, it get a 3D fix even in the garage very quickly.

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        • #5
          I will try to change battery but its not easy. Have a metallic cover and no screw. But i will try. its ok if i break it because in this way annoying.
          Do you know what kind battery using BU-353 inside?

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          • #6
            Im not sure, since I had a different one. It should be some kind of button cell, though.

            I think mine was implemented the same way yours is. Metallic clamp to hold it in place and soldered onto the PCB. I attached a picture.
            Attached Files

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            • #7
              Mine looks like this:
              Click image for larger version

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              Click image for larger version

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              • #8
                Click image for larger version

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                • #9
                  Batterty information:

                  Part Number: MS621FE
                  Manufacturer: Seiko Instruments
                  Short Description: BATTERY LITHIUM 3.1V RECHARGE

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                  • #10
                    Disassembled battery from PCB. I will use battery holder outside. I will solder battery holder's cable to PCB and holder will stay out. Should i use high capasity AA or AAA battery? USB can charge it?
                    Last edited by cem_ari; 04-25-2014, 09:33 AM.

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                    • #11
                      what do you think about this?:
                      http://www.ebay.de/itm/261364836260
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                      • #12
                        Originally posted by harryberlin View Post
                        what do you think about this?:
                        http://www.ebay.de/itm/261364836260
                        can it run as a standalone over pc ?
                        Vw Sharan 2007 1.9tdi || Exide 100Ah
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                        • #13
                          Originally posted by harryberlin View Post
                          what do you think about this?:
                          http://www.ebay.de/itm/261364836260
                          Are you planing to buy it? is it ready to use via usb?

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                          • #14
                            Seems like a lot of trouble considering a new bu-353-S4 (newer model) is $35
                            Build Things, it keeps your brain busy.

                            AutoPC v1 (Retired) - AutoPC v2 (in progress) - www.shocknet.us

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                            • #15
                              Modified BU-353

                              Click image for larger version

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                              Maxell ML2032 65 mAh rechargeable battery

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