When sourcing these batteries, prioritize the nominal capacity (typically 50Ah or 100Ah) and the Energy Density. Ensure the battery uses Lithium Iron Phosphate (LiFePO4) technology, which is the standard for Huawei's telecommunication and energy storage series (like the ESM-48100 series) due to its superior thermal stability and long cycle life (typically >3000 cycles at 80% DOD). Verify the Battery Management System (BMS) functions, including overcharge, over-discharge, and short-circuit protection.