ID.3 and other MEB battery packs in conversions

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raine
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ID.3 and other MEB battery packs in conversions

Post by raine »

Hi. Has anyone used ID.3 packs in conversions yet? I am considering pursuing this route. All pro's, Con's and tips are welcomed.
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EV_Builder
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Re: ID.3 and other MEB battery packs in conversions

Post by EV_Builder »

Which BMS?
Did you open a brick to check the board inside?
tom91
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Re: ID.3 and other MEB battery packs in conversions

Post by tom91 »

Slevb
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Re: ID.3 and other MEB battery packs in conversions

Post by Slevb »

We have purchased an id3 pack and will post video's and details about what we find.
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tmotion
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Re: ID.3 and other MEB battery packs in conversions

Post by tmotion »

Slevb wrote: Sat Sep 25, 2021 6:51 am We have purchased an id3 pack and will post video's and details about what we find.
Interested in reading your findings. 8 48v modules will.make a nice and very compact HV battery. Combined with fast charging it will be great for a lot of conversions
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johu
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Re: ID.3 and other MEB battery packs in conversions

Post by johu »

I met the eClassics team and they use all 8 modules in their T2 conversion without water cooling despite charging with 100kW.
The modules dissipate heat via the floor pan while driving. They get all the data from VW including the inverter protocol but are not allowed to share :(
Support R/D and forum on Patreon: https://patreon.com/openinverter - Subscribe on odysee: https://odysee.com/@openinverter:9
Domt177
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Re: ID.3 and other MEB battery packs in conversions

Post by Domt177 »

Found a guy on Facebook who is using 110kwh worth of VW MEB batteries in stationary storage, with SIMP BMS using the original VW Slave Boards

https://m.facebook.com/pg/Carel1956/posts/
boekel
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Re: ID.3 and other MEB battery packs in conversions

Post by boekel »

Domt177 wrote: Mon Oct 11, 2021 1:01 pm Found a guy on Facebook who is using 110kwh worth of VW MEB batteries in stationary storage, with SIMP BMS using the original VW Slave Boards

https://m.facebook.com/pg/Carel1956/posts/
Carel Hassink, he sells all kinds of modules. he was actually using BMW CMU's there.
Domt177
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Re: ID.3 and other MEB battery packs in conversions

Post by Domt177 »

Pinout for the 8s ID3 (MEB) Module from Carel

Don’t have the 12s module pinout

The smaller packs (55 and 62) use 8 and 9 12s modules, 82 uses 12 8s modules

modules don't have BMS slave boards
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tom91
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Re: ID.3 and other MEB battery packs in conversions

Post by tom91 »

Correct they are "Dumb" modules, so have the external long black boxes in the packs that function as the slaves. There are different slave modules, with varying amounts of module connections.


Few limitations:
1. All cell tap connectors need to be connected on the slave for it to send plausible data
2. Limited to utilizing slaves with different IDs (so no mixing between packs)
3. No balancing as of yet I require a working internal battery can capture with balancing occurring.

Pinout for the slaves:

Slave Can Connector
Conn JST Wire side of connector view
Front of PCB connector view
ID3 connector.JPG
raine
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Re: ID.3 and other MEB battery packs in conversions

Post by raine »

tom91 wrote: Thu Nov 25, 2021 8:43 am Correct they are "Dumb" modules, so have the external long black boxes in the packs that function as the slaves. There are different slave modules, with varying amounts of module connections.


Few limitations:
1. All cell tap connectors need to be connected on the slave for it to send plausible data
2. Limited to utilizing slaves with different IDs (so no mixing between packs)
3. No balancing as of yet I require a working internal battery can capture with balancing occurring.

Pinout for the slaves:

Slave Can Connector
Conn JST Wire side of connector view
Front of PCB connector view

ID3 connector.JPG
You mean these long black boxes? In my 9 module pack, there was this oneway and two 4-way boxes. These are slaves to connect to SimpBMS by replacing the black connector?
module external  long black box.jpg
tom91
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Re: ID.3 and other MEB battery packs in conversions

Post by tom91 »

Yes I believe the black connector is the 12V and canbus
raine
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Re: ID.3 and other MEB battery packs in conversions

Post by raine »

tom91 wrote: Thu Nov 25, 2021 6:29 pm Yes I believe the black connector is the 12V and canbus
Which version of the SimpBMS firmware should work with the ID.3 modules and the stock slave modules? Mine is version 210614. I see no canbus traffic to either oneway or 4-way slave module.
tom91
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Re: ID.3 and other MEB battery packs in conversions

Post by tom91 »

VW firmware, there will be canbus traffic if wired correctly.
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Carel Hassink
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Re: ID.3 and other MEB battery packs in conversions

Post by Carel Hassink »

Hello Raine,

VW ID3/4/Skoda Enyaq oem slave boards bms cable pin-out in MEB battery box
check photo
take off the tape from bms cable, locate green/white(12V pos) brown(gnd), orange/blue(Hi) + orange/brown(Lo)
there you go.
at least this is how I got can-data

best regards Carel
detail MEB slaveboard pin-out RRR.jpg
bms connecor cable MEB  RRR.jpg
raine
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Re: ID.3 and other MEB battery packs in conversions

Post by raine »

Thanks Tom and Carel for your help. I got the canbus traffic going finally. There was a small discrepancy in the SImpBMS documentation between Can H and Can L in the user guide ver 0.27 at page 12 of the VW slave connector wiring:
Screenshot 2021-12-01 141227.jpg
The Can H should be pin 4 and Can L pin 9. This is correct in the page 11 where connector X5 is detailed, but this one at page 12 misslead me.

Thanks again for your help!
raine
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Re: ID.3 and other MEB battery packs in conversions

Post by raine »

Has anyone found the connectors for modules and slaves or are they VW proprietary?
IMG_1485.jpg
Thanks!
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