Info on BMW hybrid battery packs?

[royhen99]

2020 gen2 pack.

[sprocketman]

I have a gen 1 BMW 330e F30 and I have purchased a gen 2 battery pack to try and get a better range.

Does anyone know the best way to use the gen 2 batteries in the gen 1 pack so that the car recognises it.
I tried plugging the blue plug into the s box unit with the new gen 2 batteries but the car wouldnt recognise the new batteries.THe pin out should be the same apart from the wire in pi4 which is not used on the Gen 1.

I dont want to cut all the ballance wires off each battery and join to the old BMS unit on the end of the battery. Because its a lot of work. the plugs to these are differant only the blue plug is the same.

[Venigo]

I have a gen 1 BMW 330e F30 and I have purchased a gen 2 battery pack to try and get a better range.

Does anyone know the best way to use the gen 2 batteries in the gen 1 pack so that the car recognises it.
I tried plugging the blue plug into the s box unit with the new gen 2 batteries but the car wouldnt recognise the new batteries.THe pin out should be the same apart from the wire in pi4 which is not used on the Gen 1.

I dont want to cut all the ballance wires off each battery and join to the old BMS unit on the end of the battery. Because its a lot of work. the plugs to these are differant only the blue plug is the same.

If the eos tester see's the new cells then it is only about registering the new cells in the sme box? As far as I know it takes first registering to the sme, the followed by ista.

[sprocketman]

Thank you for the reply Venigo I have ISTA but i dont have a EOS tester. Is it just BMW who have these?

[Gregski]

better late than never

the BMW hybrid BMS master module Gen 1 vs Gen 2

FYI: I was able to plug in the Gen 1 wire harness into the Gen 2 module

I plan on uploading pics of the Gen 1 and Gen 2 BMS wire harnesses next

part number comparison

[BHP4EVER]

I am working on bmw mini EV.....could someone help me out with a wiring diagram for the SME module please...I want to power the module up and gain diagnostics to it....i have a issue with 12 slave modules and no Can communictaion..

[Venigo]

Thank you for the reply Venigo I have ISTA but i dont have a EOS tester. Is it just BMW who have these?

No, you can buy these to.

Depends on the HV pack of the car:
- 81315A94550
- 83302353361
- 83302353250

Further good to know: the EOS security code can be generated online to.

[davefiddes]

Does anyone know what the resistance of the wire-wound pre-charge resistor is in these packs? It was mentioned a while back that they are KOA Speer Electronics BGR30 resistors but these can be anything from 10 to 390 ohms.

[sprocketman]

No, you can buy these to.

Depends on the HV pack of the car:
- 81315A94550
- 83302353361
- 83302353250

Further good to know: the EOS security code can be generated online to.

Hi, thanks you obviously know what your doing.
The only 10 digit numer on the HV pack name plate starts with 0211 and is under the manufacture date. is that it?
Can you point me in the direction of a site that can dothe code generation?
Thanks again.
Andrew

[sprocketman]

Does anyone know what the resistance of the wire-wound pre-charge resistor is in these packs? It was mentioned a while back that they are KOA Speer Electronics BGR30 resistors but these can be anything from 10 to 390 ohms.

They are 15 ohms on the first version of HV packs.

[cloudy]

Does anyone happen to have any vehicle side can logs from a BMW PHEV? I'm able to read out all parameters (SOC, temps,cell volts, power limits) from the intact SME, but am unable to close contactors and get a invalid qualifier status message from the balancing status. I think I need some vehicle messages to proceed... Thanks

[sprocketman]

I have done some teseting on the BMW battey connectors
I think the best way to use the newer 34Ah batteries in the old BMW hybrid packs is to swap the pins in the connectors and use the same BMS system.
There is a risk of shorting the cables so if you are doing this I recomend that the pins are swapped one at a time and double check before plugging back in.
I have included the pin outs of the two plugs below for info:-

[sprocketman]

Temperature valves are in ohms not volts