[Campbell-T-Cat]

Hi,

I am trying to find a Tesla Model 3 Battery Module BMS Cell Tap Board?

Or any other device that can be used on a Model 3 battery pod /motor retrofitted into another vehicle.

thanks for any suggestions.
.

 

[remy_martian]

What vehicle is the Model 3 battery pack going into?

 

[Campbell-T-Cat]

What vehicle is the Model 3 battery pack going into?

I’m retrofitting a catamaran fro. Twin Diesels to Model 3 motors and battery packs

 

[vvoltage]

I’m retrofitting a catamaran fro. Twin Diesels to Model 3 motors and battery packs

I'm doing a 23 foot center console as well. Can you share more about this project?

 

[remy_martian]

Twin diesels, to electric? I suggest you read the countless threads on this forum from people waltzing in here trying to convert a diesel boat to electric.

Summary: it'll be pathetic unless you're happy at 3-6kt.

 

[Campbell-T-Cat]

I'm doing a 23 foot center console as well. Can you share more about this project?

Well, it’s a big project. 42’ custom built fly-bridge aluminum cat built in New Zealand In 1990. It has twin Hamilton Jet HJ291 propulsion units I just rebuilt. I purchased two Tesla motors (each had one broken motor mount). I got them very inexpensively. I’ll fashion motor mounts because motors will be perpendicular to hulls. I will have to weld spider gear diff or replace it with straight diff (to lock the 2 axle ports on each motor to turn together [same rpm]).

Im now considering motor controllers, BMS controllers, and battery pods. I like EV-controls unit it doesn’t have a BMS. ingenext‘s unit has BMS combined with motor controller. Thunderstruckmotors(has a BMS) is the only vendor that seems to be helpful with sales support. The others, including EV west seem to brush off email and phone questions saying “just buy what they have on their website“. EV west said their insurance prohibits them from any marine Project… so do t tell them your application.

I will need to re-package the battery packs since my motor hatches are 35” wide. SuperFastMatt has YouTube video on converting a 1950 Jaguar sedan that may be helpful to you.

I guess that’s enough detail for now. 😀. Have a great day, Steve

 

[Campbell-T-Cat]

Twin diesels, to electric? I suggest you read the countless threads on this forum from people waltzing in here trying to convert a diesel boat to electric.

Summary: it'll be pathetic unless you're happy at 3-6kt.

Looking for 8kt for 4 hours

 

[vvoltage]

Looking for 8kt for 4 hours

I'm looking to get on a modest plane at 25kts for 3 hours. So far not able to get it done retrofitting exiting boat. Ideally an outboard but nobody will sell one to me without buying into their complete system.

 

[vvoltage]

Hi,

I am trying to find a Tesla Model 3 Battery Module BMS Cell Tap Board?

Or any other device that can be used on a Model 3 battery pod /motor retrofitted into another vehicle.

thanks for any suggestions.
.

Back on to your original subject for a moment...

The model 3 battery, which I helped design, has no connectors on the battery management interfaces. There are long flexes that are wire bonded on one end and laser welded to the cells. You would have to do some welding to make these connections. Would you consider using the model 3 Battery Management Boards that are on the modules? If a get enough interest from the community I can build one.

 

[Campbell-T-Cat]

Back on to your original subject for a moment...

The model 3 battery, which I helped design, has no connectors on the battery management interfaces. There are long flexes that are wire bonded on one end and laser welded to the cells. You would have to do some welding to make these connections. Would you consider using the model 3 Battery Management Boards that are on the modules? If a get enough interest from the community I can build one.

Yes indeed. I would prefer to use built-in Tesla BMS. please contact me via [email protected]
thanks!

 

[reiderM]

Back on to your original subject for a moment...

The model 3 battery, which I helped design, has no connectors on the battery management interfaces. There are long flexes that are wire bonded on one end and laser welded to the cells. You would have to do some welding to make these connections. Would you consider using the model 3 Battery Management Boards that are on the modules? If a get enough interest from the community I can build one.

Do you have knowledge on the software/firmware side of things? Damien could use your help...
GitHub - damienmaguire/Tesla-Model-3-Battery-BMS: Reverse engineering of the Tesla Model 3 battery bms control

Tesla Model 3 BMS Controller

Electric Vehicle (EV) conversions of BMW cars and related technologies.

www.evbmw.com

The idea with this is to reuse the original BMS boards: Damien ran into some issues doing so and open-sourced it and, as things tend to go when he releases stuff open-source, no one has picked up the slack and finished it.

 

[vvoltage]

I'm very familiar with Damien's work. Trying to work out the best path forward from here. Let me think on this a bit and see what I can do.

 

[mgirey]

I am also interested in a BMS solution for model 3 battery pack. Would prefer to use teslas boards that are mounted on top of the modules.

 

[steve.s]

I have a design using the LTC 6811 device similar to what is on the Model 3 contact me I can send you the info. Here are the modules I made that used the dual device unit for each 24s section of battery used in a prototype EVTOL. This module is LG 28650s its 22 parallel by 24 series. I posted the software to github and can supply pcbs or built units I have a bunch from a batch build I did awhile back. It provides temperature readings as well 6 per unit. Code is C++. I used isoSPI interfaced to arduino or raspberry pi or other microcontroller. I also use it for a boat and a vw conversion I own. I'm adapting to a Model 3 I want to install in a 2012 RAV4 EV.

Steve