1-8 Power keep function Power keep function using the benefit of AC power system further lengthen the operation hours epochally. With conventional electric powered forklift trucks, the vehicle performance decreases gradually as the battery level goes low. The power keep function adopted to new models takes advantage of the increased controllability provided by the AC system to keep the vehicle performance even when the battery level has become low. With this power keep function, the maximum operating hours have increased by 25%, and the number of work cycles that can be completed without the operator noticing a decline in performance has also increased by 25%.
New power keep function offers a significant and essential improvement in the material handling efficiency. (See page 2-2 for further detail.) (Functions in power mode: P, standard mode: S) Battery discharge level and vehicle performance Battery capacity warning 1.1 1 New model Battery usage limit area 0.9 0.8 Previous model Decrease in performance 25% up Lift interruption 0.7 0% 20% 40% 60% 80% 100% Battery discharge level (%) Previous model (2.5 ton:S mode) Efficiency operation hour: 161min New model (2.5 ton:S mode) Efficiency operation hour:
200min Even the battery indicator is flashing to indicate the charge warning, the performance level of 7FBMF series is batter than that of the former FBMF models. In view of the battery protection, it is advisable to charge the battery before discharging to the limit.