ID.3 and other MEB battery packs in conversions
- Carel Hassink
- Posts: 8
- Joined: Fri Oct 18, 2019 1:51 pm
- Location: Obdam Netherlands
Re: ID.3 and other MEB battery packs in conversions
Jochen what brand of MEB battery you have??
LG Chem, closed aluminum case,
or
CATL aluminum body black plastic sheet on top.
Carel
LG Chem, closed aluminum case,
or
CATL aluminum body black plastic sheet on top.
Carel
check facebook page: facebook.com/carel1956
Re: ID.3 and other MEB battery packs in conversions
Fuses. 1206 size SMD fuses in the LG Chem version.
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- Posts: 4
- Joined: Thu Mar 24, 2022 8:37 pm
- Location: Berlin area
Re: ID.3 and other MEB battery packs in conversions
I have closed modules from LG.
Kutato, great picture.
This helps a lot!
I guess the grey flex cable is from an 8S module and the pink one from a 12S module? So there are 4, respectively 6 fuses somewhere else? Also good to see one of the NTCs. Is the other placed similar, just on top of the cells?
Best regards, Jochen
Kutato, great picture.

I guess the grey flex cable is from an 8S module and the pink one from a 12S module? So there are 4, respectively 6 fuses somewhere else? Also good to see one of the NTCs. Is the other placed similar, just on top of the cells?
Best regards, Jochen
Re: ID.3 and other MEB battery packs in conversions
There are also fuses at the other end. He just couldn't fit a single photo.
Re: ID.3 and other MEB battery packs in conversions
"The Orion BMS balances at a maximum rate of about 200mA". So the MEB modules can't be used with Orion BMS?Carel Hassink wrote: ↑Tue Mar 29, 2022 9:31 pm Jochen, what a bummer, sad,
but think you blew the smd resistor in the line of the flex cable, leading to cell 12, disabling it effectively.
100mA is about max what it will take...
Lars, a partner has designed a cell-tab board using oem cell-tab cable, out goes MOLEX with pin-numbering sticker for easy connecting,
check evcreate.nl/shop/
Carel
Perhaps I can help out, quite a few battery modules at hand, or talk to Lars
IMG-20220311-WA0001.jpeg

- Carel Hassink
- Posts: 8
- Joined: Fri Oct 18, 2019 1:51 pm
- Location: Obdam Netherlands
Re: ID.3 and other MEB battery packs in conversions
I was very conservative in my thinking that 100mA would be prudent.
If 750mA (per Kutato72 ) : all Orion users become happy, as it seems,
but we have Lithium Balance/Emus etc, and other commercially available bms brands too
I'm happy to be wrong with my estimate of max mA =100, if that makes us all happy to use commercially available bms's
(way forward, we go test it)
best regards, Carel
If 750mA (per Kutato72 ) : all Orion users become happy, as it seems,
but we have Lithium Balance/Emus etc, and other commercially available bms brands too
I'm happy to be wrong with my estimate of max mA =100, if that makes us all happy to use commercially available bms's
(way forward, we go test it)
best regards, Carel
check facebook page: facebook.com/carel1956
Re: ID.3 and other MEB battery packs in conversions
Hi!
I've used e-tron modules,3s4p 240ah, in a couple of builds and those use the same type on flex cable.
The flex cable has a high resistance compared to normal cables which can be a problem for the BMS because of faulty cell voltage readings. I’ve seen this on BMS based on the LTC68XX stack monitor. I ended up modifying all modules and replacing the flex cable with 22 awg cable.
Can Orion compensate for wire resistance?
BR
Rikard
I've used e-tron modules,3s4p 240ah, in a couple of builds and those use the same type on flex cable.
The flex cable has a high resistance compared to normal cables which can be a problem for the BMS because of faulty cell voltage readings. I’ve seen this on BMS based on the LTC68XX stack monitor. I ended up modifying all modules and replacing the flex cable with 22 awg cable.
Can Orion compensate for wire resistance?
BR
Rikard
Re: ID.3 and other MEB battery packs in conversions
@Carel, I would like to know the weight of the 6.85kwh 234Ahr LGChem modules, please.
- Carel Hassink
- Posts: 8
- Joined: Fri Oct 18, 2019 1:51 pm
- Location: Obdam Netherlands
Re: ID.3 and other MEB battery packs in conversions
Ammar, here you go:
size: 59x22.5x11cm
weight: 29.85kg
best Carel
size: 59x22.5x11cm
weight: 29.85kg
best Carel
check facebook page: facebook.com/carel1956
Re: ID.3 and other MEB battery packs in conversions
Thank you, Carel, for the quick response and the detailed info. Much appreciated.
Re: ID.3 and other MEB battery packs in conversions
Dear all,
I have registered myself to this forum because of this interesting thread. I'm thinking of building a second life ESS with the 12S VW MEB modules.
1) If it is possible I would like to use the VW original BMS (VW Slave Boards for 4 battery modules). I would like to buy them (evt. new from VW). Does anybody have a idea how they can be addressed and configured (can bus)?
If they are addressed and configured correctly, I have read that the SimpBMS would make an interface from an inverter to the BMS.
Alternatively, I would use any 3rd party BMS. Does anybody have a recommendation for a ESS?
BR,
CupraBorn
I have registered myself to this forum because of this interesting thread. I'm thinking of building a second life ESS with the 12S VW MEB modules.
1) If it is possible I would like to use the VW original BMS (VW Slave Boards for 4 battery modules). I would like to buy them (evt. new from VW). Does anybody have a idea how they can be addressed and configured (can bus)?
If they are addressed and configured correctly, I have read that the SimpBMS would make an interface from an inverter to the BMS.
Alternatively, I would use any 3rd party BMS. Does anybody have a recommendation for a ESS?
BR,
CupraBorn
Re: ID.3 and other MEB battery packs in conversions
Hi CupraBorn,
SimpBMS works with them but not 100% yet, temperatures are not yet shown.
SimpBMS works with them but not 100% yet, temperatures are not yet shown.
- Carel Hassink
- Posts: 8
- Joined: Fri Oct 18, 2019 1:51 pm
- Location: Obdam Netherlands
Re: ID.3 and other MEB battery packs in conversions
check facebook page: facebook.com/carel1956