Jack Bauer wrote: ↑Wed Apr 01, 2020 6:58 am any one is fine thanks. Will send you a pm. Thanks:)

If you still need, please leave me your address and I will send it to you with free shipping. However, I am in California, not sure how long it will take.

New design transciever board in production at JLC. Based on a Xilinx Spartan 6 FPGA running at 100MHz. Ultimately will provide receive and transmit with spi and uart interfaces. Couple this up to Simpbms and we should be good to go:)

....ok I was going to put a vga port on it but I stopped myself ...

I now have a solar project and I need to come up with a solution immediately. I hope to provide customers with a very durable battery pack.

Don't be under any illusion that the commercial BMS's are a panacea... I've seen several projects that are a total disaster where the supplier has walked ...

Thanks for your advice! I also look forward to Damian ’s solution. I now have a solar project and I need to come up with a solution immediately. I hope to provide customers with a very durable battery pack. That's why they have these stories.

I was thinking if I removed the circuit board. Find the connection point corresponding to each "S". Connected to the BMS of 23S. Then connect a 96V 20 amp charger.

I have not started to think about the type of charger.
Because I am now thinking about the feasibility of the whole plan.
The new Tesla model 3 battery looks like this.
https://lh3.googleusercontent.com/NvOApjIVooETgZZA_BXwAZIO0daa8b2xc_MAcfaPPUjg-b94O9z7jL5QwRRkatYaVacCbszzDEc4AS9bc4Cw5BRROApqakQ ...

Sounds great!!
Could you send me a picture to show the connection detail about the battery BMS please?
I'm in califonia too! Which city do you live in? Would you mind me to vist you?

Use this kind BMS board.
connect all the pin form 23S group to the bms.

Well....
I got a 2019 Tela Model 3 battery.
It has 2 pcs 23S(31P) pack and 2 pcs 25S(31p) pack.
Right now I juest need 23S working is fine.
reted voltage: 23S x 3.6V=82.8V
high voltage:23S x 4.2V=96.6V
So I'm thinking can I just give it a 96V chager plus a 23s bms module let is work?
Charging ...

I now have a PACK 25S battery pack. Can I remove the original control board in the middle? Then connect a 25S third-party BMS to make it work?