13-20Tons Heavy Duty Electric Forklift With Lithium Battery with a lifting height range of 3-8 meters.The independently developed variable speed constant displacement control system provides global power matching, on-demand fuel supply, and minimizes throttling and overflow losses. Coordinated motor control optimizes motor-load matching, optimizes energy management, and ensures efficient operation. Time-sharing operation and automatic idle shutdown reduce motor and pump idling energy consumption. A 580V high-voltage solution reduces current draw. A high-efficiency permanent magnet synchronous motor and intelligent door drive variable speed control generate very little heat, saving 20% more energy than asynchronous motors. Regenerative power generation for various negative loads, utilizing lithium-ion battery energy recovery, improves overall energy efficiency.