Great project @cajamatt,
I am just starting a similar project (Leaf Stack, Zombi, Ioniq5 battery): https://openinverter.org/forum/viewtopic.php?t=6236
So much good information in your post and in others comments to you. Happily following your progress.
Would like to touch base with you.
Email me ...

It seems to be working for me. Pressing "Add to cart" and then "Checkout"

Screenshot 2025-06-11 at 14.05.25.png
Screenshot 2025-06-11 at 14.05.32.png

At which stage are you having issue? I notice you're not on the https site https://www.evbmw.com/index.php/evbmw-webshop/vcu-boards this is likely ...

Well this is discouraging.
I tried to order the Zombieverter on http://www.evbmw.com/index.php/evbmw-webshop/vcu-boards
I get this message:
Shopping Cart
Your shopping cart is empty!

Hi Cajamatt,
I also want to use an Ionic5 with a leaf stack and Zombieverter. Can you tell me about charging, the BMS you used and could you use the contactor from the Ionic 5? Did you reverse engineer the Ionic5 BMS?

Try this one:
https://www.aliexpress.us/item/2261800073471035.html?spm=a2g0o.productlist.main.2.13adv4zhv4zh5q&algo_pvid=b1166ad7-10ea-4644-9fec-1c5d9352d7b0&algo_exp_id=b1166ad7-10ea-4644-9fec-1c5d9352d7b0-1&pdp_ext_f=%7B%22order%22%3A%2215%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%217 ...

You can set an output to HVactive, this means the output is active when the ZombieVerter is in Run or Charge Mode
There is more explanation on the wiki: https://openinverter.org/wiki/ZombieVerter_VCU#Pin_Input/Output_and_functions


When I read through the doc above: The Enclosure Kit with Header ...

discuss on forum -> open an issue if appropriate

My apologies for sending a DM to ask how to ask about a feature or enhancement. And after getting my ears boxed and some more research I read Johannes' post about features and issues above. So hear goes.

Subject: Zombieverter - Enhancement for ...

I have 32 modules to make 96s,my setup is w124 benz with lexus gs450h,i pull 500amps peak with no issue,i have an orion bms2,ive made sure to have 8 temperature sensor monitoring the battery and it hardly raises any temparature

Hi Joe, I have this battery also and want to install it with a leaf ...

ianlighting wrote: ↑Sun Mar 16, 2025 4:13 pm Seen my T2 build? There’s photos I’ve put up over the last 2 days that give you some pointers on how you can arrange the Leaf stack. Mine’s a 74, so I’m guessing I’ve got a bit more space to play with.

Checking them out, now!

Bratitude wrote: ↑Sun Mar 16, 2025 2:06 pm I am using the a leaf motor and half of one of these batteries.

What are you using for the BMS?
Are you cooling the batteries? (I read some concerns in the topics you shared).

Now for some Pictures:
Rescuing the Transporter:
IMG_5142.jpeg
IMG_5141.jpeg
IMG_5139.jpeg
IMG_5140.jpeg
The Battery
IONIQ 5 Battery.jpg
IQ6-EV Battery label.jpg
IQ6-EV Battery.jpg
The EM57
Left Side EM 57.jpg
Oppisite of Shaft Side EM 57.jpg
Right Side EM 57.jpg
Shaft Side EM ...

'63 VW Transporter - EM57 Powered. [WIP]
This is my new project. Finally wrapping up the '70 MGB Roadster - 2015 Leaf EM57 powered and we learned a lot!
So far just collecting parts.
● A new wire harness is on the way.
● We have the full stack Leaf EM57 motor already.
I am not sure it will fit but ...

Ok cool :) So what exactly was the issue?
Would be good if you could upgrade to 5.35.R but read this first: https://openinverter.org/forum/viewtopic.php?t=5075

Will do the update as soon as possible after reading the topic.
The wiring I was using was obviously home made. I used auto bullet style ...

This latist problem is Resolved
I found the intermittent was down at the motor.
Thanks go to Johannes for asking for the SPOT VALUES.
SPOT VALUES are your friend.

I noticed opmode Off. Is that the Issue? OMG I am a moron.

Hi Johannes,
Thanks for the response!
https://acrobat.adobe.com/id/urn:aaid:sc:VA6C2:1d9d4e68-a94f-473a-bf69-ee9c5af633ce

I uploaded the pdf with spot values. Varifed it was in "forward". But please have a look. I am no expert.
Also would you like me to update the software?
I can do that if ...

Help please.
Issue "Wheels on the bus don't go round and round"
I was able to drive the MGB into my garage from the big shop but now it won't move.
After I power it on and connect to WiFi on the inverter I get "No errors". But still it will not move.
I check all the wiring ad verified that I had ...

And for the error I got yesterday [501]: STOP - PRECHARGE could it be that the full voltage must be available before I power on then start the inverter? I can and will test for this.

OK the error [501]: STOP - PRECHARGE is RESOLVED . If you start the HV and inverter at the same time, you can get ...

Today's investigation: Reread the PS2 config files. Pack Sniffer 2 precharges for 2 seconds then fully enables the direct contactor. (This is the setup I have always used from the beginning). So I tried the following. Leaving as is, I started the PS2, then after 2 seconds I checked the voltage to ...

It means udc < (udcsw/2) after 5s. Precharge resistor blown? Or precharge relay doesn't pull in? Anyway, no voltage seems to arrive at the inverter


Thanks Johannes. I am using the Leaf battery as it came in the whole battery pack module with its contactor set including its precharge relay. And ...

Any way to reset the password without taking the inverter apart? :cry:

Solved the password Problem: Never set a password. But new devices require a password. So I used the old Nexus to login and set a WiFi Name and Password.
Now onto the not able to drive problem: I get this Inverter error ...

I am having a problem maybe someone knows ow to fix. I drove the MGB down to my garage from the shop. The intention was to rewire the switches (master power on, Reverse-Neutral-Forward), and Key Switch for Inverter ON and Start( Momentary 12V pulse). All went well and I was able to test after I ...

johu wrote: ↑Sun Feb 16, 2025 6:12 pm Wait, you're successfully running a Gen3 OI board? I.e. in Leaf Gen3 inverter.

Hi johu, is there sarcasm in this part of your response ? What am I missing?

Did you get the whole battery pack with the disconnect?
It should have a fuse in it. Mine did.

So sorry you had to drop the project.