In all likelihood, you'll need to turn it on. After you install it, please report any errors you encounter. Make a note of your serial number before making any changes.

Hello everyone, I need your help. I have recovered (legally) an Okai ES400 scooter. I did a bypass on the battery to get the right output voltage and I wanted to change the controller. I'm using the 26A cs866 1T5 controller (recommended on a forum). https://fr.aliexpress.com/item/1005006365312227.h...