When sourcing a Robot Trolley, the most critical factor is the Load Capacity, which typically ranges from 500kg to over 5,000kg; ensure the rated capacity exceeds your maximum load by at least 20% for safety. You must also evaluate the Navigation Technology, such as SLAM (Simultaneous Localization and Mapping), Lidar, or QR code guidance, depending on whether your environment is dynamic or fixed. Additionally, check the Battery Life and Charging Method, prioritizing models with Lithium Iron Phosphate (LiFePO4) batteries and Automatic Charging (Auto-docking) capabilities to ensure 24/7 operational efficiency.