Ecooter E2 BMS protocol

[freesty]

Thanks for the pdf.
In case you might not know, the communication between main and second battery happens on 2x extra wires, probably UART RX/TX between both BMS. The middle pins of the original battery connector.
And ecooter did some bms updates, to improve second battery behaviour.

Are you gonne stay with 64V or go higher?

 

[bob-w-1993]

Thanks man, nice to know. i was suspecting it to talk on the same wire. I was planning to go to 32s9p so about 134V fully charged

 

[freesty]

Thanks man, nice to know. i was suspecting it to talk on the same wire. I was planning to go to 32s9p so about 134V fully charged

that's crazy voltage for this scooter. very curious about your mods. are you changing the motor aswell?
Do you also want the speed to be displayed? The data is coming from the foc controller I guess.

 

[bob-w-1993]

that's crazy voltage for this scooter. very curious about your mods. are you changing the motor aswell?
Do you also want the speed to be displayed? The data is coming from the foc controller I guess.

Yes in the first post of the topic i posted the signals for the speed and other things. That was my first goal, unfortunately the display stops at 99 km/h but that's okay for me. I changed the original motor assembly for a CNC swingarm and a QS260 6000W with high torque winding.