... of the seat mat: Main units: The hygienic roll, the accumulator, the circuit board, the transformer, the oil pressure cover, the ... , the microcomputer controller, ABS outer covering, a Sensor. 1. The accumulator: The output voltage is 6V and the service life is ... more than 3 years. Being charged for 3 hours, the accumulator can offer the power to the motor more than 2000 ...