



DC/DC storage battery capacity verification technology is an “energy feedback type” capacity verification technology developed to solve the pain points of traditional capacity verification. It realizes on-line constant current discharge and charging of storage batteries through DC/DC boost-buck circuits without detaching from the system, reducing the impact on power supply continuity. DC/DC storage battery capacity verification technology adopts high-frequency DC/DC modules (the main core is boost circuit and constant current charging module), contactors, diodes and other components, and its working states include three modes: standby floating charge, capacity verification discharge and constant current charging. In the standby floating charge state, the storage battery is directly connected to the system; during capacity verification discharge, the DC/DC boost circuit raises the storage battery voltage to be higher than the DC bus voltage, making the storage battery supply power instead of the rectifier; after discharge, it automatically switches to constant current charging to restore the storage battery capacity.
| Parameter Category | Name | Parameter Example/Range |
| Electrical Parameters | Rated Power | 3kW (Customizable) |
| Battery Side (Input) | Voltage Range: 40V – 65V DC; Maximum Current: 0 – 100A | |
| Bus Side (Output) | Voltage Range: 42V – 58V DC | |
| Feedback Efficiency | ≥90% (Rated Working Condition) | |
| Ripple Coefficient | ≤1% | |
| Control Parameters | Discharge Mode | Constant current, constant power, constant resistance, step discharge |
| Discharge Current Accuracy | ±1% | |
| Voltage Measurement Accuracy | ±0.5% | |
| Capacity Calculation | Automatically calculated and displayed (Ah, %) | |
| Functional Characteristics | Working Modes | Capacity verification discharge, intelligent charging |
| Protection Functions | Overvoltage, undervoltage, overcurrent, short circuit, reverse connection, overheating, single battery protection, AC power failure, abnormal faults, etc. | |
| Data Recording | Report generation, storing capacity verification curves and data | |
| Communication Interfaces | RS485, Ethernet Port, USB | |
| Physical Environment | Cooling | Intelligent Temperature-Controlled Fan |
| Display | LCD Touch Screen | |
| Operating Temperature | -10℃ ~ 50℃ | |
| Size/Weight | 19-inch 2U/7U standard chassis, ≤30kg |