The size and shape of this cart is similar to the AQ-KPD series, but it is slightly higher. Battery Transfer Cart. AQ-KPX battery transfer cart for sale parameters: Load Capacity: 2t~150t. Table size: can be customized. Wheel base: 1200~7000mm. Rail inner gauge: 1200~2000mm. Battery voltage: 24~72V. Running speed: 0~30m/min.