I searched this forum and, surprisingly, can’t find anything on this. If the info is out there, I apologize for the re-post. Are there any detailed write-ups on how to do a Di2 battery conversion (external to internal)? I’m looking for a parts list and detailed directions. I have a 2014 Cervelo P3, so if somebody out there is willing to share their parts list with (EW-SD50) cable lengths, that would be awesome. Thanks in advance for your help.
Will an internal battery fit inside your frame?
I did a di2 build on my wife’s QR CD0.1. It calls for an external battery also. Instead, I picked up the cylindrical battery and wired it up. It’s stashed inside the seat tube with a long piece of scrap brake cable zip tied to it. To remove, simply remove the seat post and pull the cable. Everything charges through the junction box so no need to get to it really.
Not sure if that helps.
Thanks. Unfortunately, I’m replacing the older Di2 set up, which requires removal of the battery to charge. So, I’ll need a new junction box (with recharging port) and probably some new cabling. At that point, I can scrap the old battery and the charger…