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PostPosted: Sat Jan 12, 2013 8:32 pm 
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Joined: Mon Oct 20, 2008 5:06 am
Posts: 74
Location: Minas Gerais, Brazil
tetonrider wrote:
excellent work!

what do you do to ensure the wires do not rub on the crank spindle? gravity will want to pull them down a bit. that bend from the downtube wire as it curves up the seat tube is an issue (minor one!) i've had on a similar project i did.

was it difficult to get a dremel inside the bottom bracket? i'd imagine the angles are tight.

thanks for sharing!


i superglued the wires to the inside of the BB area, to keep them away from the crank spindle.

the holes were drilled with a ball-tip bit, so the dremel could be held at a 90 degree angle to the frame.

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Eduardo
2011 Look 695 SR


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Posted: Sat Jan 12, 2013 8:32 pm 


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PostPosted: Wed Aug 06, 2014 9:02 am 
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Joined: Tue Nov 12, 2013 9:38 am
Posts: 4
Hi Johhny,

Digging up your old thread. :-)
How's the internal battery that you purchased? Have you faced any issues with regards to charging and the battery retaining it's charge?
Hope to hear from you soon. Thanks.


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PostPosted: Wed Aug 06, 2014 10:31 am 
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Joined: Sat Oct 23, 2010 9:36 am
Posts: 243
Location: Eastern Coast of the Baltic Sea
My experience with internal batteries from ebay:

* have 2 bikes with them, ridden fairly regularly (approx 5k km on each of them each year)
* charging no more frequently than once per 5-6 months (no mountains in my country, everything is rideable in the big ring :D)
* one battery died suddenly without warning last year, leaving me singlespeed in a middle of a ride :D The ebay seller replaced it with a new one, which has held up good so far


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PostPosted: Wed Aug 06, 2014 12:09 pm 
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Joined: Mon Oct 20, 2008 5:06 am
Posts: 74
Location: Minas Gerais, Brazil
mrlobber wrote:
My experience with internal batteries from ebay:

* have 2 bikes with them, ridden fairly regularly (approx 5k km on each of them each year)
* charging no more frequently than once per 5-6 months (no mountains in my country, everything is rideable in the big ring :D)
* one battery died suddenly without warning last year, leaving me singlespeed in a middle of a ride :D The ebay seller replaced it with a new one, which has held up good so far



Same for me, except for one battery only (ridden 8000km per year).

First battery died due to water spray from rear tire, which came down the seat tube from the top.

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PostPosted: Fri Aug 08, 2014 8:52 pm 
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Joined: Thu Jul 17, 2014 7:10 pm
Posts: 34
would you recommend I use the external cable guides on the down tube of my EVO hi-mod to drill for an internal routing port? Also, where did you find those rubber "gaskets" to help seal the routing holes to give a nice factory finish to the cable holes?


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PostPosted: Fri Aug 08, 2014 9:04 pm 
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Joined: Mon Oct 20, 2008 5:06 am
Posts: 74
Location: Minas Gerais, Brazil
I don't see any problem in routing your external cables internally - but the connectors are thicker than the internal cables, so you will have to drill bigger holes.
You can find the rubber pieces at ebay - look for "Di2 grommets"

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PostPosted: Sat Aug 09, 2014 4:39 am 
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Joined: Tue Sep 01, 2009 10:10 am
Posts: 49
Is this for second generation Di2, or for the first Generation?
Looking at the cables and the shrink wrap on the bottom bracket, it looks like this DIY is for the first generation Di2.

Andreas


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PostPosted: Sat Aug 09, 2014 12:53 pm 
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Joined: Mon Oct 20, 2008 5:06 am
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Location: Minas Gerais, Brazil
First generation

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PostPosted: Sun Aug 10, 2014 11:40 pm 
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Joined: Fri Oct 03, 2008 12:37 pm
Posts: 50
Location: Australia
Anyone know if these batteries are still available? Seems like less around since 11spd and Shimano's own internal battery have been released. I had one (same as Johhny Bravos), worked perfect, but then accidentally cut up one of the wires when re-inserting seat post (think wires got pressed up against bottle cage mount).....debating whether to get another, or just continue to use external battery.


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PostPosted: Mon Aug 11, 2014 12:43 am 
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Joined: Mon Oct 20, 2008 5:06 am
Posts: 74
Location: Minas Gerais, Brazil
Contact the guy who sold you that one - he can surely build another.
I saw his listing at ebay last week, i think he is still doing the job. I will contact him for a spare as soon as i have the cash.

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Eduardo
2011 Look 695 SR


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PostPosted: Mon Aug 11, 2014 4:38 am 
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Joined: Tue Nov 12, 2013 9:38 am
Posts: 4
hmmm..interesting...
It's good that the seller does replacements. But having it go dead mid ride is certainly not something nice.
And the time it takes for the replacement to arrive is something I am not looking forward too as well.
I have the original and fugly battery (7970) that will mounted at the bottle cage. Gets the job done...but i am trying if there are other more stealthy (and reliable) options.


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PostPosted: Mon Aug 11, 2014 9:29 am 
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Joined: Tue Sep 01, 2009 10:10 am
Posts: 49
Johhny Bravo wrote:
First generation


I though you are hacking 2nd Generation and can charge inline within the system.

The solution from Shimano was so expensive that I hacked Di2 2nd Generation for using internal battery. I disassemble BMR1 and took the circuit, and rewired it. Cheaper alternative, but the problem is that I need to take out the seatpost for charging.

Thanks.
Andreas


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PostPosted: Tue Dec 23, 2014 11:07 pm 
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Joined: Tue Dec 23, 2014 11:02 pm
Posts: 1
Great post. I'm also looking to convert my addict to di2. How large were the holes you drilled? What diameter bit?
Thanks


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PostPosted: Wed Dec 24, 2014 1:36 am 
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Joined: Mon Oct 20, 2008 5:06 am
Posts: 74
Location: Minas Gerais, Brazil
I don't remember the diameter of the drill bit, but the hole size was just enough for the plug to pass thru.

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Eduardo
2011 Look 695 SR


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Posted: Wed Dec 24, 2014 1:36 am 


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PostPosted: Wed Dec 24, 2014 1:40 am 
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Joined: Fri Mar 09, 2007 1:26 am
Posts: 497
Location: USA
For the E-Tube I used a 1/4inch which is a 6mm hole and the Shimano grommets fit perfectly.


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