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Thread: Anyone know the definitive way to charge Nav V's battery while off the bike?

  1. #1

    Anyone know the definitive way to charge Nav V's battery while off the bike?

    I found this thread: https://forums.bmwmoa.org/showthread...l=1#post939168

    This is so full of contradictory information it's nearly worthless. I have had it plugged into a PC w/ Garmin Express running in the background and it simply does not charge. The unit is 2.7y/o now.

    I only use Nav V when I have need for nav guidance which only happens 4-5x/year for a few days to a few weeks, otherwise I have a rearview camera monitor living where Nav V mounts in my '16 RT's GPS Prep. So all I need is a way to charge the thing up to keep up the battery's health. It's a small pain to remove my LCD monitor and install Nav V for charging which is what I do now so just need a proven charge method for Nav V while it's off the bike. Kinda weird there is no stand alone charger for it. Perhaps there's one I'm not aware of so chime in if you've had luck.

    ADDENDUM: maybe the battery is just getting too old to hold its charge long. Other Li-ion batteries typically hold charges for a long time. So...ordered a new one directly from Garmin for $38. Thru BMW it would be around $118 FWIW.
    Last edited by ncpbmw1953; 12-11-2018 at 06:39 PM.

  2. #2
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by ncpbmw1953 View Post
    so just need a proven charge method for Nav V while it's off the bike. Kinda weird there is no stand alone charger for it. Perhaps there's one I'm not aware of so chime in if you've had luck.

    .
    I use the Garmin USB cord provided with the Nav V and a phone charger.
    I charged both units yesterday and found I had to turn the Nav V on before charging so it would charge.

    In the Tread you referred to I had previously said the Nav did not have to be on to charge.
    I added a post to that thread today saying the unit needs to be on before you can charge it.

    I have a Garmin charger that came with a Nuvi but it has a mini USB instead of the micro USB needed for the newer BMW Navigators.
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

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    Quick Hi-Jack

    If I buy used NAV 5 or get used bike with one on it are updates free?

  4. #4
    If mine needs charging, I put it in the cradle and turn it on for an hour. Batt fully charged, it's taken out of the cradle and placed back in it's protective zippered case, back in one of the saddle bags/
    The lion does not even bother to turn his head when he hears the small dog barking.

    https://www.youtube.com/user/azqkr

  5. #5
    Registered User lkraus's Avatar
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    Slow, cold, gray day here at the home for the retired, so I though I'd throw some data into the mix. I grabbed my similar Zmo 590 and some chargers from the junk drawer. I found five wall warts to check, plus my desktop PC, a netbook, an auto lighter adapter, my XP-1 clone battery pack, and the Garmin motorcycle and auto mounts.

    From a turned-off state (power button held down until asked to confirm power off), every power source woke up the GPS and showed the lightning bolt charging icon. Most brought it up ready to navigate. The computers and one wall wart for a cheap tablet brought it up in Garmin Express mode. Express was not running on the computers. Without cutting up a cord and putting an ammeter in the line, I cannot tell if the battery continues to charge when I force the Zmo to turn off while powered. I'm OK with leaving it on while charging, seldom need to just charge it anyway.

    From the map screen, tapping the Speed indicator brings up the Trip Information screen, and then pressing the current speed for about ten seconds gives access to developer and diagnostic menus. Developer Info->Power Source provides data on battery voltage and battery (charging) current. I saw that my battery was charging at about 170mA to 180mA (the same as the bike and auto mounts), using chargers rated at 0.7A to 2.0A. One charger from a tiny Bluetooth earpiece was rated at 180mA, but the GPS reported it was charging at only 2mA.

    My understanding is that lithium battery life is extended with partial charging rather than waiting for 100% charge. Most articles I've read recommend a 40% to 60% charge for long term storage. If the GPS will be unused for several weeks at a time, it's probably best to charge/discharge it to 50% and then disconnect it until it is needed.
    Larry
    2006 R1200RT

  6. #6
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by brownie0486 View Post
    If mine needs charging, I put it in the cradle and turn it on for an hour. Batt fully charged, it's taken out of the cradle and placed back in it's protective zippered case, back in one of the saddle bags/
    Are you saying you turn the bike ignition on, then leave it on for 1 hour?
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  7. #7
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by 179212 View Post
    If I buy used NAV 5 or get used bike with one on it are updates free?
    From what I have read, the free lifetime map updates will transfer to a new owner of a Nav V.
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  8. #8
    Quote Originally Posted by Lee View Post
    Are you saying you turn the bike ignition on, then leave it on for 1 hour?
    No no, in cradle while riding, after an hour or next stop, fully charged, it's put away
    The lion does not even bother to turn his head when he hears the small dog barking.

    https://www.youtube.com/user/azqkr

  9. #9
    Quote Originally Posted by Lee View Post
    I use the Garmin USB cord provided with the Nav V and a phone charger.
    I charged both units yesterday and found I had to turn the Nav V on before charging so it would charge.
    Same here...

  10. #10
    Debbie's Servant Lee's Avatar
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    Quote Originally Posted by brownie0486 View Post
    No no, in cradle while riding, after an hour or next stop, fully charged, it's put away
    I don't have that option in the winter
    Lee
    2016 R1200RS
    MOA # 30878
    Past BMW Bikes: 2011 K1300S, 2003 K1200RS, 1991 K75S, 1987 K75T, 1984 R100RT

  11. #11
    Registered User patm's Avatar
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    Quote Originally Posted by 179212 View Post
    If I buy used NAV 5 or get used bike with one on it are updates free?
    Yes
    Pat

    Ride Safe!
    '16 RT

  12. #12
    Quote Originally Posted by Lee View Post
    I don't have that option in the winter
    10-4 sir.
    The lion does not even bother to turn his head when he hears the small dog barking.

    https://www.youtube.com/user/azqkr

  13. #13
    Registered User drneo66's Avatar
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    I'l throw some more info in the mix (but this may not align perfectly with your specific model). Garmin powers their devices a little "different."

    From the 3BR Powersports Redband website: "Garmin uses the cable to determine which mode, navigate or data, the GPS should be operating in. Using a standard USB data cable to power a Garmin Nuvi will cause it to go into data mode for transferring maps, route/track data, pictures etc. The 3BR Powersports Red Band GPS power cable looks like a standard USB power cable with a USB Type A plug on the source end but it has internal circuitry to make it appear to the GPS as a Garmin power cable..."

    You also need to make sure you have enough amperage. My riding buddy uses a 7" Garmin Dezl, his Dezl kept shutting down midride even though it was showing a charging battery icon. Turns out, that this model actually pulls a little over 2 amps during operation, so his generic USB charger couldn't keep up. Double check that your little wall wort and/or computer is putting out enough juice to run both the screen and charge the battery. Your computer is probably only putting out 500-900 milliamps if it's not labeled as a charging port.
    Current: 2007 BMW R1200RT
    Former: 1995 BMW K75S, 2009 BMW G650GS
    MOA Member #:150400, IBA#: 37558

  14. #14
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    Quote Originally Posted by Lee View Post
    I use the Garmin USB cord provided with the Nav V and a phone charger.
    I charged both units yesterday and found I had to turn the Nav V on before charging so it would charge.

    In the Tread you referred to I had previously said the Nav did not have to be on to charge.
    I added a post to that thread today saying the unit needs to be on before you can cha
    I have a Garmin charger that came with a Nuvi but it has a mini USB instead of the micro USB needed for the newer BMW Navigators.
    1. You must have a Garmin USB cable (or equivalent -- but I don't know the pin-outs) to charge the Nav V off the bike.
    2. A 2-amp phone charger works for the charging unit. I use a Motorola phone charger w/2 USB ports. This allows me to charge both the Nav V and my Sena at the same time in the motel at night. It is faster if I'm only charging one or the other. (Different cable required for the Sena).
    3. The unit does NOT need to be on to charge, but the only way you can tell the unit is at full charge is to turn the unit on, unplug it from the charger, and check the battery icon to see how the charging is progressing. (Who's idea was that????)
    4. Nav V charges faster if on while plugged into the Motorola phone charger.

    I've been charging my Nav V this way for 3 years now. Is that definitive enough?
    J Goertz
    BMW MOAL
    2015 BMW R1200RT
    2012 Triumph Bonneville SE

  15. #15
    Registered User patm's Avatar
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    Quote Originally Posted by jgoertz View Post
    1. You must have a Garmin USB cable (or equivalent -- but I don't know the pin-outs) to charge the Nav V off the bike.
    2. A 2-amp phone charger works for the charging unit. I use a Motorola phone charger w/2 USB ports. This allows me to charge both the Nav V and my Sena at the same time in the motel at night. It is faster if I'm only charging one or the other. (Different cable required for the Sena).
    3. The unit does NOT need to be on to charge, but the only way you can tell the unit is at full charge is to turn the unit on, unplug it from the charger, and check the battery icon to see how the charging is progressing. (Who's idea was that????)
    4. Nav V charges faster if on while plugged into the Motorola phone charger.

    I've been charging my Nav V this way for 3 years now. Is that definitive enough?
    The NAV V (and VI) has a standard USB 2 Micro-b connector with 5 pins, pin 1 being the power source (5 vdc) pin 2 and 3 are data send and receive, pin 4 is host ID and 5 is the ground. Any USB 2 compliant wall charger should do the job. Any standard USB A to USB micro-b cable should also work. I use a 2.1 amps 4 ports USB charger when I travel to recharge my electronics.
    Pat

    Ride Safe!
    '16 RT

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