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Blackburn Flea lights



 
 
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  #1  
Old November 2nd 13, 03:09 PM posted to rec.bicycles.misc
Andrew Chaplin
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Posts: 206
Default Blackburn Flea lights

Anyone have any experience with these? I bought one last summer and it would
work fine for several hours in its flashing mode. Now that weather has
dropped below freezing, however, it runs for only about 15 minutes before
shutting off; in other words, I cannot get home with the damn thing still
working. I had been as careful as I could to fully discharge it and then
charge it fully, but that does not seem to have helped.
--
Andrew Chaplin
SIT MIHI GLADIUS SICUT SANCTO MARTINO
(If you're going to e-mail me, you'll have to get "yourfinger." out.)
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  #2  
Old November 3rd 13, 01:54 AM posted to rec.bicycles.misc
John B.[_3_]
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Posts: 5,697
Default Blackburn Flea lights

On Sat, 2 Nov 2013 14:09:33 +0000 (UTC), Andrew Chaplin
wrote:

Anyone have any experience with these? I bought one last summer and it would
work fine for several hours in its flashing mode. Now that weather has
dropped below freezing, however, it runs for only about 15 minutes before
shutting off; in other words, I cannot get home with the damn thing still
working. I had been as careful as I could to fully discharge it and then
charge it fully, but that does not seem to have helped.


Temperature effects battery output, see:
http://www.discover-energy.com/why-d...ct-batteries-0

This might be your problem if your bike/batteries are kept at outside
temperatures. In cold weather.

Try taking the light (and battery) off the bike and keeping it in a
warm location to see whether that lengthens the life a bit. that
should help identify the problem.

--
Cheers,

John B.
  #3  
Old November 3rd 13, 03:16 PM posted to rec.bicycles.misc
Andrew Chaplin
external usenet poster
 
Posts: 206
Default Blackburn Flea lights

John B. wrote in
:

On Sat, 2 Nov 2013 14:09:33 +0000 (UTC), Andrew Chaplin
wrote:

Anyone have any experience with these? I bought one last summer and it
would work fine for several hours in its flashing mode. Now that
weather has dropped below freezing, however, it runs for only about 15
minutes before shutting off; in other words, I cannot get home with the
damn thing still working. I had been as careful as I could to fully
discharge it and then charge it fully, but that does not seem to have
helped.


Temperature effects battery output, see:
http://www.discover-energy.com/why-d...uch-dramatic-e
ffect-batteries-0

This might be your problem if your bike/batteries are kept at outside
temperatures. In cold weather.


I'm a Canadian and a soldier who is trained in winter warfare. I know well
the effect of temperature on batteries, especially rechargeable ones. I
just hadn't expected it to be so severe. I suspect that the Flea, with its
tiny battery, is particularly vulnerable.
http://www.blackburndesign.com/lights/safety-lights-
front/rechargable/flea-2-0-front-usb-457.html

Try taking the light (and battery) off the bike and keeping it in a
warm location to see whether that lengthens the life a bit. that
should help identify the problem.


The light and battery are a single sealed unit that is always indoors when
it is not in use. I have cleaned the contacts on the charger and the light
and recharged it again after letting it go flat. I'll see if that helps.
--
Andrew Chaplin
SIT MIHI GLADIUS SICUT SANCTO MARTINO
(If you're going to e-mail me, you'll have to get "yourfinger." out.)
  #4  
Old November 4th 13, 06:46 PM posted to rec.bicycles.misc
Duane[_3_]
external usenet poster
 
Posts: 1,900
Default Blackburn Flea lights

On 11/2/2013 10:09 AM, Andrew Chaplin wrote:
Anyone have any experience with these? I bought one last summer and it would
work fine for several hours in its flashing mode. Now that weather has
dropped below freezing, however, it runs for only about 15 minutes before
shutting off; in other words, I cannot get home with the damn thing still
working. I had been as careful as I could to fully discharge it and then
charge it fully, but that does not seem to have helped.


I have the USB version of these lights for front and back. About 6
months after purchase, the front one started to shutoff after a few
minutes. I took it back to the LBS where I purchased it and received a
replacement.

They said it was likely stuck in Demo mode. After trying to reset the
demo mode they replaced it without question. Most Blackburn equipment
has a lifetime warranty.


 




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