18Ah + 2x6Ah + 12Ah. 3x Jiabaida BLE BMS + 1x Non-smart BMS.
Modification of the 1st battery — adding insulator between cells:
Assembling 2d 6Ah battery:
Looks a bit ugly, but they have insulators between cells, good BMS, fat body walls etc… so should work good. 18Ah assembled with holders.