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PostPosted: Mon Dec 15, 2014 3:19 am 
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Joined: Mon Sep 09, 2013 1:54 am
Posts: 11
Location: Glasgow, Ky
I was wondering how many EPS users turn off the system with the magnet after every ride? I have 2 bikes with EPS, and always turn them off, but I don't know if it is really doing anything for battery life. Any thoughts or experiences?

-Eddie


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PostPosted: Mon Dec 15, 2014 11:47 am 
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Shop Owner / Manufacturer

Joined: Mon May 26, 2008 12:21 pm
Posts: 98
Location: UK
What your dealer should have explained to you is that Campagnolo have an on-board diagnostic system that runs in the background all of the time that your system is swtched on - that's why it *has* an on-off switch at all. Shimano's diagnostics are external hence they don't have a switch ...

The diagnostic uses a small amount of charge each time the subroutine runs (about once every 15 -20 sec), so switching the system off between uses removes this constant but very small drain on the system.

Switching off between uses will maximise the number of shifts that you get per battery charge but you don't need to be too fanatical about it - the demo bikes that we use for training and demonstration purposes often go for a month at a time without being switched off or charged with no huge loss of charge on the battery.

HTH
Graeme
Velotech Cycling Ltd
Main Campagnolo Service Centre, UK

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A Tech-Reps work is never done ...
Head Tech, Campagnolo main UK ASC


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Posted: Mon Dec 15, 2014 11:47 am 


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PostPosted: Mon Dec 15, 2014 2:35 pm 
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Joined: Tue Sep 15, 2009 4:33 pm
Posts: 23
I have been using Super Record EPS v2 for over a season now. I ride 12-18hrs a week and have NEVER used the magnet band to turn my eps off. In over 8000 miles, I have charged my battery three times. Never have let it go below flashing yellow. As I have to remove my seatpost to charge my battery, that is acceptable charge durations for me.


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PostPosted: Mon Dec 15, 2014 3:18 pm 
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Joined: Sun Oct 05, 2008 8:09 pm
Posts: 1084
Location: Aix en Provence
I only put it on when I plan to not use the bike EPS is on for a while.


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PostPosted: Mon Dec 15, 2014 3:27 pm 
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Shop Owner

Joined: Sun Jan 03, 2010 4:58 am
Posts: 563
Rarely.


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PostPosted: Mon Dec 15, 2014 3:57 pm 
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Joined: Mon Sep 09, 2013 1:54 am
Posts: 11
Location: Glasgow, Ky
Thanks a bunch for the input. I have been using the rubber band daily to turn off. Good to know I really don't have to.

graeme_f_k - Unfortunately I live several hours from a Campagnolo dealer, and have had to wrench on my own Campagnolo drivetrains since around 1985. I had to install and figure out the EPS on my own.

Again, thanks for all those that responded.

-Eddie


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PostPosted: Mon Dec 15, 2014 5:20 pm 
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Resident Pro

Joined: Tue Mar 18, 2003 9:42 pm
Posts: 2102
i use it every ride. one time i forgot and left it overnight, no problems the next day.


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PostPosted: Fri Mar 27, 2015 12:45 pm 
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Joined: Thu Sep 21, 2006 8:54 pm
Posts: 710
Location: Reading, UK
Wonder if anyone has any advice or insight into an EPS battery drain problem.

I have just built up a bike with Athena EPS components. The shifting is fabulous, I love it already, but there is a battery drain problem. One full battery charge lasts 7 days and I have already recharged the battery three times in about 3 weeks. I was hoping this was an issue that would go away but it hasn’t. This morning I went for a ride, did a battery check first and got green light, and then found that the battery power died completely after 10 minutes and I had to go home in one gear.

It's Athena front and rear mechs, external battery v1, interface unit v1. Anyone have any clues?


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Posted: Fri Mar 27, 2015 12:45 pm 


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