5-12 Energy storage system 5. New Energy Power System d. Disconnect the battery pack inflow tube A and the battery pack outflow tube B. e. Unscrew 2 fixing bolts at front end of the battery pack. Tightening torque of bolt: (100±10) Nm. f. Unscrew 2 fixing bolts at rear end of the battery pack. Tightening torque of bolt: 100±10Nm. VOYAH FREE