The DC Resistive Load Bank is a special testing equipment developed for DC power supply systems, adopting a pure resistive load structure, which is suitable for working conditions of various DC voltage and current levels. It is mainly used for discharge testing, capacity detection, aging test and fault troubleshooting of DC power supplies, battery packs, DC charging piles, photovoltaic inverters and DC power distribution cabinets. Featuring stable discharge, adjustable parameters and perfect safety protection, it can accurately calculate the capacity, endurance time and load adaptability of DC equipment, effectively solve the problem of inaccurate no-load and light-load testing of DC power supply equipment, and is a core testing equipment for new energy, energy storage, rail transit and other industries.