amp "draw" for the 2008 fjr1300 - Yamaha FJR Forum : Yamaha FJR Owners Forums
 
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post #1 of 7 (permalink) Old 08-17-2019, 02:27 PM Thread Starter
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amp "draw" for the 2008 fjr1300

New battery dead after 4 days of sitting, I have tested the amp "draw" for the 2008 fjr1300 with key off and found that I have .58v, meter set at 20m with the key off I not been able to find what the max drop is for the FJR1300 it is coming from the instruments panel when I unplug the fuse no lost. I sorry if this is an old question but I have look for hours.
Thanks for any help I can get
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post #2 of 7 (permalink) Old 08-17-2019, 04:16 PM
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Howdy. Welcome to the forum.


Did you charge the new battery when you installed it? I ask because I have left my 2013 just sitting in the garage for a month a couple of times and it fired right up. I am willing to bet that the key off power draw is only a few milliamps at most.

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post #3 of 7 (permalink) Old 08-17-2019, 05:01 PM Thread Starter
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Yes battery is fully charged, all bikes have a amp draw with a clock I am trying find what they allow for amp lost.
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post #4 of 7 (permalink) Old 08-17-2019, 09:53 PM
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The average draw ignition off, is 20 millliamps of current to run the memories of the ECU and clocks. If you have more than that, then there may be an accessory that is powered, e.g., a voltmeter or a USB charger, etc.

Ray
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post #5 of 7 (permalink) Old 08-18-2019, 11:55 AM Thread Starter
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Thank you, I could not this in the service manual or on line where did find this out.


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post #6 of 7 (permalink) Old 08-18-2019, 12:37 PM
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With 20 milliamp, consumption is as follow:


1 hour: 0.02 ah
24 hours: 0.48 ah
One week: 3.36 ah
Two weeks: 6.72
Three weeks: 10.08 ah
One month: 14.4 ah...


In addition self discharging of the battery will drain it even more.
A normal digital watch would run for ever on this battery, the FJR only some weeks and that with no display active. Seems a battery tender needs to be used if the bike is not used every week.
Next time I have the cover off, I think I will measure the drain, 20 milliamps seems a bit much to me.


/rogerf

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post #7 of 7 (permalink) Old 08-18-2019, 12:38 PM
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I had a quick scan, couldn't find it either. Talked about a lot, I have actually seen it in print, will advise if I find it. For now, just test the parasitic draw and see what it actually is.

Ray
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