Hello. I installed 93AH 3.7V prismatic cells in mine and it works better than the original ones. I also removed the original bms (the seven slaves plus the master). The latter is very laborious but it is worth it since you can control the Bluetooth battery from your mobile. You have to modify the configuration and wiring of the Sevcom so that both the FS1 and the seat switch, among others, directly bypass the VCU. I even took the opportunity to put it in reverse gear since it is configured in the Sevcom.