Ui2 battery seatpost advice

Discuss light weight issues concerning road bikes & parts.
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KOGAN
Posts: 210
Joined: Sat Aug 12, 2006 11:19 am
Location: United Kingdom

by KOGAN

Hi

I am going to put Ui2 on my bike and been advised for a cleaner look to put the battery in the seatpost.

Unfortunately my Pro Vibe 7s aluminum seatpost isnt Di2 ready.

http://www.parker-international.co.uk/1 ... post-.html

Rather than buying a Di2 compatible seatpost I wondered if either of these battery holders would work with my existing seatpost?

http://www.3tcycling.com/accessories/battery-holder

http://dedaelementi.com/index.php?page= ... 94&lang=en



Thanks

mpower
Posts: 158
Joined: Mon May 23, 2011 4:37 pm

by mpower

Just use some cheap foam and tie it up with some cable ties and you are all set. Simple and easy.

by Weenie


goodboyr
Posts: 1388
Joined: Wed Jan 10, 2007 10:56 pm
Location: Canada

by goodboyr

I've used this one. Works on all seatposts of standard sizing. Two sizes to chose from.

http://ritcheylogic.com/road/seatposts/di2-seatpost-battery-mounts.html

drmutley
Posts: 344
Joined: Fri Feb 11, 2011 4:23 am

by drmutley

goodboyr wrote:I've used this one. Works on all seatposts of standard sizing. Two sizes to chose from.

http://ritcheylogic.com/road/seatposts/di2-seatpost-battery-mounts.html



If u want lighter, just go a lipo stick battery and fix it into the seatpost with space invader foam insulation in a can...

KOGAN
Posts: 210
Joined: Sat Aug 12, 2006 11:19 am
Location: United Kingdom

by KOGAN

Thanks for help guys, will probably go for one of these suggestions :)

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naylor343
Posts: 113
Joined: Sat Aug 30, 2008 1:46 pm
Location: Ariege, Midi-Pyrenees

by naylor343

[/quote]If u want lighter, just go a lipo stick battery and fix it into the seatpost with space invader foam insulation in a can...[/quote]


Have you done this yourself? If so which battery did you use, I have done an internet search and the range of lipo slim line batteries is mind boggling :shock: Thanks :D

mpower
Posts: 158
Joined: Mon May 23, 2011 4:37 pm

by mpower

DELETED.
Last edited by mpower on Mon Nov 11, 2013 1:38 am, edited 2 times in total.

mpower
Posts: 158
Joined: Mon May 23, 2011 4:37 pm

by mpower

Image

Chainsnapper
Posts: 12
Joined: Tue Dec 04, 2012 3:32 pm

by Chainsnapper

I used a similar method to the above, though I wrapped it in a single layer of packing foam and jammed it down inside the seat tube rather than up into the actual post. Lower COG and slightly shorter cable required..

kode54
Posts: 1102
Joined: Tue May 23, 2006 9:39 pm

by kode54

Chainsnapper wrote:I used a similar method to the above, though I wrapped it in a single layer of packing foam and jammed it down inside the seat tube rather than up into the actual post. Lower COG and slightly shorter cable required..


will the battery eventually slide down due to all the bumps you hit on the road?
- AX Lightness Vial EVO D + DA9150 + Enve SES 3.4 carbon hubs
- Parlee Altum + DA9150 + Enve SES 4.5 carbon hubs
- Parlee ESX + DA9150 + THM SRM PM + Enve SES 6.7 CK hubs
- Independent Fabrication Ti FLW + DA9100 + Enve 3.4 CK hubs

Chainsnapper
Posts: 12
Joined: Tue Dec 04, 2012 3:32 pm

by Chainsnapper

kode54 wrote:
Chainsnapper wrote:I used a similar method to the above, though I wrapped it in a single layer of packing foam and jammed it down inside the seat tube rather than up into the actual post. Lower COG and slightly shorter cable required..


will the battery eventually slide down due to all the bumps you hit on the road?


Not in my case as it is sitting nice and tight and my seat tube tapers right down to shape around the wheel, although it's a valid consideration to raise for those with cylindrical tubes. No different to fitting it into the post I suppose - common sense approach to make sure it won't move over time.

drmutley
Posts: 344
Joined: Fri Feb 11, 2011 4:23 am

by drmutley

naylor343 wrote:
If u want lighter, just go a lipo stick battery and fix it into the seatpost with space invader foam insulation in a can...[/quote]


Have you done this yourself? If so which battery did you use, I have done an internet search and the range of lipo slim line batteries is mind boggling :shock: Thanks :D[/quote]

Sorry for late reply...
Yes I have done this many times with ui2 battery conversions... Very easy to cut down the mount to a very small size to run inline, in the seat tube... The selection of lipo stick battery depends on the size you have to play with, the mAh capacity u want to run, and weight considerations. I run a 1600mAh battery with my 7970 setup, and get about 7000kms out of it between charges...

This is the exact battery I run:
http://bit.ly/19FlnIf

Image

by Weenie


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