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Di2 Error Indicator Light
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tondizon
Oct 18, 14 21:24
Post #1 of 9 (18209 views)
Just upgraded to Di2...trying to fully charge the battery before going on my ride tomorrow, but the battery error indicator light keeps flashing (charging failure) when I plug it into the junction box.

Any thoughts, suggestions, or ideas why this is happening? Could it be that my LBS didn't update the firmware? The current charge status is showing 50% (5 green blinks).
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Re: Di2 Error Indicator Light [tondizon] [ In reply to ]
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goodboyr
Oct 19, 14 3:04
Post #2 of 9 (18163 views)
If you are using the internal battery and thus the usb charger, make sure that the usb power source is 1 amp or greater. Many are not. Less than 1 amp doesn't work and causes the light to flash.
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Re: Di2 Error Indicator Light [goodboyr] [ In reply to ]
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tondizon
Oct 19, 14 9:06
Post #3 of 9 (18100 views)
Got it. Is the amp requirement on the usb power source the input or the output? I tried several that I have at my house...the one for my ipad says input .45A and output of 2.1A
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Re: Di2 Error Indicator Light [tondizon] [ In reply to ]
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allenpg
Oct 19, 14 9:19
Post #4 of 9 (18092 views)
Output. Your Ipad charger should work fine.
"Most of my heroes don't appear on no stamps"
Blog = http://extrememomentum.com|Photos = http://wheelgoodphotos.com
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Re: Di2 Error Indicator Light [allenpg] [ In reply to ]
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tondizon
Oct 19, 14 9:21
Post #5 of 9 (18088 views)
hmm...still getting the flashing error indicator light...maybe faulty charger?
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Re: Di2 Error Indicator Light [tondizon] [ In reply to ]
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allenpg
Oct 19, 14 13:24
Post #6 of 9 (18043 views)
Are you using the BCR2 charger? If so, you could download the Shimano E-tube software and run diagnostics on the system.
"Most of my heroes don't appear on no stamps"
Blog = http://extrememomentum.com|Photos = http://wheelgoodphotos.com
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Re: Di2 Error Indicator Light [allenpg] [ In reply to ]
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goodboyr
Oct 19, 14 14:48
Post #7 of 9 (18014 views)
The charger does everything EXCEPT run diagnostics. You need the pce interface for that.
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Re: Di2 Error Indicator Light [tondizon] [ In reply to ]
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Russ Brandt
Feb 7, 15 14:41
Post #8 of 9 (17803 views)
Did you ever figure out a solution? I'm getting the same flashing error light. I tried using an Ipad usb-AC charger and that didn't help. I also tried swapping out the micro usb to usb section of the cord and still same blinking.
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Re: Di2 Error Indicator Light [tondizon] [ In reply to ]
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Jamie73
Feb 7, 15 17:45
Post #9 of 9 (17770 views)
If you don't get it figured out, still go for your ride. You have enough battery life to last for many miles.
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