Is it possible to put the EPS battery in a seatpost?

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williamsf1

Post subject: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 1:11 am

Joined: Sun Jun 27, 2010 8:53 am
Posts: 235

having done about 5 bikes with Di2 I have been asked to do an EPS system into a cervelo S5

anyone taken the plunge and done this internal mod with an after market or factory battery cut down???

HELP

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maxxevv

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 1:50 am

Joined: Wed Feb 09, 2005 4:51 am
Posts: 1548

Somebody on these forums posted a while back about doing a hack for it. But haven't heard anything more since though.

Which reminds me .... how did that guy do anyone ??

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rmerka

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 2:01 am

Joined: Wed Mar 06, 2013 4:23 pm
Posts: 95

I saw a picture where Calfee hacked an EPS unit and put it in a handlebar/stem combo. It was uglier than the wart on the downtube.

_________________
My Cervelo R5

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dereksmalls

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 9:14 pm

Joined: Tue Aug 02, 2011 9:20 pm
Posts: 765
Location: New Zealand

I think it's meant to be trickier as the brains are also in the battery pack. Someone correct me if I'm wrong please. I'm sure there is a reason why it hasn't been done so far

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dgasmd

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 9:19 pm

Joined: Sun Apr 15, 2007 5:10 am
Posts: 897
Location: South Florida

dereksmalls wrote:

I think it's meant to be trickier as the brains are also in the battery pack. Someone correct me if I'm wrong please. I'm sure there is a reason why it hasn't been done so far

Correct!

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HammerTime2

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 9:29 pm

Joined: Thu May 04, 2006 4:43 pm
Posts: 4548
Location: Wherever there's a mountain beckoning to be climbed

rmerka wrote:

I saw a picture where Calfee hacked an EPS unit and put it in a handlebar/stem combo. It was uglier than the wart on the downtube.

It looks like it's nuclear-powered.

Calfee should work with Gruber and develop the GNA - Gruber Nuclear Assist. I think that would be just the ticket for Cancellara this year, as he needs a little something extra.

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rmerka

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 10:12 pm

Joined: Wed Mar 06, 2013 4:23 pm
Posts: 95

Yeah the wart on the frame is definitely better, Yuck :frightened:

_________________
My Cervelo R5

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cymans

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 11:16 pm

Joined: Sat May 28, 2011 10:17 pm
Posts: 37

it's next on my hit list !!

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doomith

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Tue Mar 19, 2013 11:46 pm

Joined: Fri Nov 09, 2012 4:57 am
Posts: 37

To be honest it kinda looks alright!

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highwater

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Wed Mar 20, 2013 3:29 am

Joined: Thu May 24, 2012 1:01 am
Posts: 42

It would look alright if there was a touch screen GPS computer built into it...

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Bridgeman

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Wed Mar 20, 2013 4:05 am

Joined: Wed Jan 12, 2005 6:04 am
Posts: 376
Location: USA

Has anyone tried mounting it under the bottom bracket?

Seems to me one could possibly take advantage of the cable guide screws for attachment.

Also, it would be at the lowest center of gravity.

I'm building up a new bike and looking into this method as an alternative.

Even where it is currently mounted, just under the bottle cage, never really bothered me though.

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Tumppi

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Wed Mar 20, 2013 6:48 am

Joined: Fri Dec 10, 2004 9:41 am
Posts: 327
Location: FINLAND

Yep, me and many more has done it or almost under bb. Movistar team new Dogmas has battery under BB also.
My bike:
http://www.pellossalo.fi/content/uploads/images/medium/20120513_003.jpg
http://www.pellossalo.fi/content/uploads/images/medium/battery_EPS.jpg
Movistar Dogma:
http://cdn4.media.cyclingnews.futurecdn.net/2013/01/22/2/movistar_dogma_1_670.jpg
http://cdn3.media.cyclingnews.futurecdn.net/2012/10/09/1/pinarellod651t2_routing_2_600.jpg
http://d4nuk0dd6nrma.cloudfront.net/wp-content/uploads/2013/01/movistar.jpg

_________________
Team KAS-RAK: http://www.pellossalo.fi/pellossalonnousu/
My Look 695 SR + EPS : http://www.pellossalo.fi/content/uploads/images/medium/Look695EPS.jpg
http://www.pellossalo.fi/content/uploads/images/medium/20120513_003.jpg

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dereksmalls

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Wed Mar 20, 2013 10:09 am

Joined: Tue Aug 02, 2011 9:20 pm
Posts: 765
Location: New Zealand

Bridgeman wrote:

Has anyone tried mounting it under the bottom bracket?

All depends on where the frame manufacturer has point the mounting holes.

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Kjetil

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Wed Mar 20, 2013 12:17 pm

Joined: Sat Jul 30, 2011 1:17 pm
Posts: 668
Location: Hamar, Norway

Colnago puts it under the down tube right in front of the BB on the C59. Trek has a messy world record on the new Madone.

I have read that Campagnolo has a seat post mounting standard coming. I just wonder where the charge and diagnostics ports will go. Maybe they'll put it all inside a Campagnolo post. That could be elegant.

_________________
Bianchi-Campagnolo

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jo.k

Post subject: Re: Is it possible to put the EPS battery in a seatpost?

Posted: Wed Mar 20, 2013 1:19 pm

Joined: Fri Jan 09, 2009 11:39 pm
Posts: 103
Location: Norway

highwater wrote:

It would look alright if there was a touch screen GPS computer built into it...

Like this?

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