New project for Sam2/Jam2 Shimano internal battery 540wh

[valex_1974]

Hi guys I’m Valerio very kind, i want start a new project with my CAD for FOCUS SAM2 Mk1 (I has do another projects , a engine Carbon/Kevlar protection and external bottle cage battery very compact 252wh in WIP ), I want engineering a new internal battery case! But with 540wh! For replace the original 378!

But I search the original case or battery broken , for take the dimensions and replace the internal cells 18650 with 21700.

Can you help me?

Regards !

 

[R120]

Cant help, but very interesting project, you could potentially make something quite special

 

[ENMTB]

YES!! Its pretty easy to take apart, has a flat base to battery sizes attached

 

[valex_1974]

YES!! Its pretty easy to take apart, has a flat base to battery sizes attached

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Thank you very much! Very kind! Buy i Need the real item, because i Need to do the CAD model very detailed, for fit the new cells and original bms, position the big holes of interface, etc.
The top solution Will Be the 3d scanner.....??????

 

[sdcoffeeroaster]

Thank you very much! Very kind! Buy i Need the real item, because i Need to do the CAD model very detailed, for fit the new cells and original bms, position the big holes of interface, etc.
The top solution Will Be the 3d scanner.....??????

Maybe one of the dealers will have one the factory didn't ask for when doing a warranty replacement? Nice project. The problem I've found with most available batteries is that 20 cells (250wh or less) can be fairly large and drive the diameters up too much. My bottle version is finishing (on the DIY link) and to me it just looks much worse than my final bag version. I may do 3D printed version of the case to make it accept a bottle when not holding the bag in place. Good luck, that std battery is very thin and compact.

 

[MiKo]

Hi Valerio,
Have you managed to push forward your project, maybe?
My internal battery has lost some capacity already and I have also been thinking if it would be possible to use the 21700 cells somehow...

 

[totrapo69]

Good afternoon, Valerio, you have managed to do the 540wh project of the jam2

 

[totrapo69]

si fuera así me interesaría una batería reformada

 

[OldBean]

Hi Valerio,
Have you managed to push forward your project, maybe?
My internal battery has lost some capacity already and I have also been thinking if it would be possible to use the 21700 cells somehow...

Hi Noted your comment My Jam 2 has lost capacity after 3 years and 3500 miles .
How does yours compare?

 

[MiKo]

Hi Noted your comment My Jam 2 has lost capacity after 3 years and 3500 miles .
How does yours compare?

Hello,
My Jam2 is roughly 3 years old as well, it has 4353 kilometers, I can still charge it to get all the bars lit up, but the last one goes away I would say in a couple of minutes after the start of the ride - not an uphill one. Moreover, when I get to 2 bars, after some additional riding time, the bike just shuts down. If I wouldn't have an additional tec pack with me, each ride would be quite a nervous experience ?
FYI: I think that from the very beginning I wasn't caring enough about not leaving the bike with a 100% charged battery in the garage. Most probably, this helped a lot bringing the battery to its current health status.
Have fun! ?‍

 

[czacha414]

Guys, I know it`s been a while but I`m working at modeling larger capacity battery for Focus. I`m looking for someone who could help me and take a few specific pictures of battery housing for CAD modeling. At this moment I still have frame but no battery.... Anyone?