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Tesla Model S module Conversion.
#11
Photo 
Hello Mart,

I'm located in Europe, Netherlands.
I have done quite a few second life battery packs from ev's / phev's
including Tesla packs,

perhaps check out Collin Kidder,
he's the man behind Jack Ricard, who hacked the Tesla can protocol.
Jack is the marketing man selling this.

https://hackaday.io/project/10098-model-s-bms-hacking

Be aware everything is experimental etc, think before doing etc.
But my advice, run the Tesla pod with a bms. Tesla's or another

You could go with a Batrium, take out the Tesla bms board, use the leads to the 7 serial battery blocks
find the white connector as in foto, hook it up to longmons or this special version batrium module.
https://www.batrium.com/search?q=rc7s
and your good to go.



I have small video, showing a hacked Tesla bms board, done by  a customer from Austria, 8 pods canbus connected, (using this set-up you could hook-up max 64 pods )
but cannot attach it to this post, or just don't know how to do it.
sent me an e-mail and i sent it to you.

best Carel Hassink



Mart Hale and hbpowerwall like this post
pro-LOX, Carel Hassink, 
Obdam, Netherlands
36Kw ESS, 320 Yuasa LEV40 cells
14.2Kwp Ciggs solar panels, 2 Goodwe 3phase inverters
SMA SI 8.0 single phase + controls, REC BMS

second life ev/phev li-on batteries
follow me on facebook.com/Carel1956
Reply
#12
(12-13-2017, 06:25 PM)Mart Hale Wrote: Yep I have been looking for a power supply that will  match 4  v, 72 amps.....     I do want to push both of the banks up, but not sure how to get it there.

I have considered putting a load on the other cells to get the resistance to match so the other cells will charge.
That will be a very expensive power supply. Honestly just get a hobby charger like the one I have for like 40bucks. Attach the leads and charge with 5A or whatever. It will take like 2 full days but by the time youve found a 72A charger that doesnt cost like 1 grand you will be done.

(12-13-2017, 09:53 PM)CarelHassink Wrote: Hello Mart,

I'm located in Europe, Netherlands.
I have done quite a few second life battery packs from ev's / phev's
including Tesla packs,

perhaps check out Collin Kidder,
he's the man behind Jack Ricard, who hacked the Tesla can protocol.
Jack is the marketing man selling this.

https://hackaday.io/project/10098-model-s-bms-hacking

Be aware everything is experimental etc, think before doing etc.
But my advice, run the Tesla pod with a bms. Tesla's or another

You could go with a Batrium, take out the Tesla bms board, use the leads to the 7 serial battery blocks
find the white connector as in foto, hook it up to longmons or this special version batrium module.
https://www.batrium.com/search?q=rc7s
and your good to go.


I have small video, showing a hacked Tesla bms board, done by  a customer from Austria, 8 pods canbus connected, (using this set-up you could hook-up max 64 pods )
but cannot attach it to this post, or just don't know how to do it.
sent me an e-mail and i sent it to you.

best Carel Hassink


Very interesting. Do you know if the board is active on the modules if you use them singley?
Reply
#13
Hello Mert,

do you solve the problem whit BMS? I have to S modules and for now are balanced but I want to use them whit a BMS. I order an Arduino Due and some another parts like sugest in hackaday project.

I'm curios how do you solve the problem.

Thanks!
Reply
#14
(12-14-2017, 09:52 AM)The-J-Man Wrote:
(12-13-2017, 06:25 PM)Mart Hale Wrote: Yep I have been looking for a power supply that will  match 4  v, 72 amps.....     I do want to push both of the banks up, but not sure how to get it there.

I have considered putting a load on the other cells to get the resistance to match so the other cells will charge.
That will be a very expensive power supply. Honestly just get a hobby charger like the one I have for like 40bucks. Attach the leads and charge with 5A or whatever. It will take like 2 full days but by the time youve found a 72A charger that doesnt cost like 1 grand you will be done.

(12-13-2017, 09:53 PM)CarelHassink Wrote: Hello Mart,

I'm located in Europe, Netherlands.
I have done quite a few second life battery packs from ev's / phev's
including Tesla packs,

perhaps check out Collin Kidder,
he's the man behind Jack Ricard, who hacked the Tesla can protocol.
Jack is the marketing man selling this.

https://hackaday.io/project/10098-model-s-bms-hacking

Be aware everything is experimental etc, think before doing etc.
But my advice, run the Tesla pod with a bms. Tesla's or another

You could go with a Batrium, take out the Tesla bms board, use the leads to the 7 serial battery blocks
find the white connector as in foto, hook it up to longmons or this special version batrium module.
https://www.batrium.com/search?q=rc7s
and your good to go.


I have small video, showing a hacked Tesla bms board, done by  a customer from Austria, 8 pods canbus connected, (using this set-up you could hook-up max 64 pods )
but cannot attach it to this post, or just don't know how to do it.
sent me an e-mail and i sent it to you.

best Carel Hassink


Very interesting. Do you know if the board is active on the modules if you use them singley?
Did you ever find out if the board is active on the modules if you use them singley?
Reply
#15
(06-10-2018, 07:11 PM)dan.fador Wrote: Hello Mert,

do you solve the problem whit BMS? I have to S modules and for now are balanced but I want to use them whit a BMS. I order an Arduino Due and some another parts like sugest in  hackaday project.

I'm curios how do you solve the problem.

Thanks!

How is this going so far?  I'm looking at purchasing some of these tesla batteries.  Wondering if you followed the hackaday project to completion.
Reply
#16
Ok, back on this thread again. :-) I have fixed set of 2 low batteries. the solution was to put a 12 V car charger at 3 amp to the cells directly. I did this at 2 hour intervals checking and verifying that the power came up on them, after 14 hours of charging in this manner the cells are now balanced and I am breathing much easier :-) I have found a youtuber that has a nifty method of keeping these balanced with a very small BMS, link -> https://youtu.be/8VqidoxRB_E

So far this looks like the solution for me, I will keep checking these but if this keeps the batteries balanced I may expand to more modules. I am also trying to do the math as to buying a used Nissan leaf ( whole car ) and attempting to put an inverter on the car so that I can have a portable battery bank, verses buying more tesla battery modules.


Thanks guys for your suggestions, I love it when I find a better solution ;-)
Brian Wilson likes this post
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#17
Photo 
I have two of the Model S packs and I bought the ZeroEV replacement board and use a cheap cell checker/balancer. The original Tesla slave board is a balancer but very very slow to balance. If you watch it in a very dark room you will see a very small led flash as it balances. The reason the balancing is so slow is the leads to the cell groups is so small and can not carry much current.
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#18
Photo 
Right, more updated info

1) as for the in-balance in the pack, most likely contamination with cooling fluids, that somehow made a slow short on the positive side  of the 18650's in that cell
I've had a few modules showing the same. Try to detect where on the module, which cell, mostly seen by a stain on the surface area. Be carefull module is live!!, but I managed to clean out with 98% synthetic alcohol, and blow dry immediately with an compressed dried air.
2) charging individual cellblocks in the module, I used a Revolectrix powerlab 8, controlled charge upto 30A pinpointed on the needed end-voltage matching the other cells
3) SIMPbms see this: https://github.com/tomdebree
Tom, now living in the UK again, has made a shield + Teensy3.2 + adjusted software, based on previous open source work of Collin Kidder, to manage the Tesla slaveboards present on each module.  ( and some more oem cmu's of other brands)

This SIMPbms will do a lot more,  and will work with cmu's from GS YUASA, VW, BMW (in progress) can controlled chargers like Brusa TC Elcon Eltek VOLT
more features
-Overvoltage monitoring
-Temperature monitoring
-Undervoltage monitoring
-Balancing during charge
-Current measurement
-AH counter

Outputs
-Contactors/relays or other 12V signals
-PWM 'gas/fuel' gauge control
-Serial interface for Victron inverters

Simpbms boards + Teensy 3.2 pre-loaded with firmware are for sale €300/pcs ex VAT ex Shipping
Tom has a small team, me I'm located in the Netherlands Europe, contact me if interested

 
pro-LOX, Carel Hassink, 
Obdam, Netherlands
36Kw ESS, 320 Yuasa LEV40 cells
14.2Kwp Ciggs solar panels, 2 Goodwe 3phase inverters
SMA SI 8.0 single phase + controls, REC BMS

second life ev/phev li-on batteries
follow me on facebook.com/Carel1956
Reply
#19
https://www.youtube.com/watch?v=8VqidoxR...m-comments


This guy has a great setup, I am using the bms he recommended, of sense I have found the same BMS under different names.
Reply
#20
Yup,
Tom de Bree wrote the software, designed the board/shield, together with Daniel Boekel,
See source on Github: https://github.com/tomdebree

It just works with Tesla modules, really pleased.
Hooks up to Victron and SMA kit,
currently testing new project 
SIMPbms to SMA HV StorageBoy series, 
https://files.sma.de/dl/31186/SBS37-60-D...V21web.pdf

so we got hold of such an inverter, capable handling from 100Vdc till 550Vdc, plus a stack of BYD HV battery modules + BMU
Plan is to sniff the can protocol, and hopefully Tom de Bree can do his magic making the code.

If all works, we can hook-up complete EV packs to SBS series

Carel
Korishan likes this post
pro-LOX, Carel Hassink, 
Obdam, Netherlands
36Kw ESS, 320 Yuasa LEV40 cells
14.2Kwp Ciggs solar panels, 2 Goodwe 3phase inverters
SMA SI 8.0 single phase + controls, REC BMS

second life ev/phev li-on batteries
follow me on facebook.com/Carel1956
Reply


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