PROFESSIONAL LOAD BANK MANUFACTURER TRIPLE ISO & CE CERTIFICATION

 DC Load Bank is a professional high-power resistive dummy load testing device specially designed for DC power system detection. Also known as DC resistive load bank, battery discharge load tester, EV charger test load and rectifier load bank, it is dedicated to simulating real DC load operating conditions. It is widely used for capacity testing, aging calibration, discharge testing and performance verification of storage batteries, DC power supplies, rectifier modules, solar panels, DC UPS, electric vehicle chargers and energy storage power systems. Different from AC load banks, this pure DC design features low voltage startup, high current stability and no AC interference, fully meeting industrial DC power precision testing and daily maintenance standards.

LINGDING DC Load Bank series includes portable mobile type, rack-mounted cabinet type and container high-power type, with full power coverage from 1kW to 600kW. It supports mainstream DC voltage specifications such as 12V, 24V, 48V, 110V, 220V, 400V, 600V, 800V, 1000V. Adopting high-precision modular load design, it supports step-by-step adjustable constant current and constant power discharge. Equipped with intelligent data acquisition system and full safety protection, certified by CE and ISO9001, it is the standard testing equipment for new energy energy storage, communication power supply, electric vehicle charging and DC power manufacturing industries worldwide.

[DC load bank for battery capacity discharge test, EV charger aging test, communication rectifier performance detection and energy storage power station commissioning acceptance]

Product Advantages 

• Pure DC Dedicated Design, High Test Stability
 Adopts exclusive pure DC circuit design, without AC conversion interference, solving the problem of unstable low-voltage discharge of conventional AC load banks. It supports ultra-low voltage startup and high-current continuous discharge, with extremely low waveform distortion, fully restoring the actual discharge working conditions of batteries and DC power equipment, ensuring true and reliable test data.

• Modular Stepless Adjustment, High Precision
 Adopts high-precision modular load unit, supporting multi-step precise load adjustment and constant current/constant power discharge mode. The test accuracy reaches ±0.5%, which can accurately detect battery capacity, DC output power, voltage stability and load bearing capacity of power equipment, meeting laboratory high-precision testing and engineering acceptance standards.

• Wide Voltage & Power Coverage, Strong Versatility
Covers 12V to 1000V full DC voltage range and 1kW to 600kW full power range, compatible with communication power supply, energy storage system, new energy vehicle charger, solar photovoltaic, DC UPS and rectifier equipment testing. It is a multi-purpose DC testing device with wide industrial adaptability.
 

• Intelligent Data Recording & Traceability
Supports local manual control, local PLC control,remote control,Laptop control and PC upper computer intelligent control. It automatically records DC voltage, current, power, discharge time and capacity data in real time, generates test curves and standard test reports, realizing full-process data traceability, convenient for factory quality inspection filing and project acceptance.

• Full Safety Protection & Long Service Life
 Built-in over-current, over-voltage, over-temperature, short-circuit, overload and fan failure multi-level safety protection. Automatic alarm and power-off protection under abnormal conditions. Adopts high-temperature resistant alloy resistors with low temperature drift and strong oxidation resistance, supporting long-term continuous aging discharge test without attenuation.

• Diversified Structure & Customized Service
Provides portable mobile, rack-mounted and container high-power three structural types, adapting to laboratory desktop testing, cabinet matching installation and outdoor large-scale engineering testing. Passed CE and ISO9001 certification, supporting customized voltage, power and special functional modes for special industry scenarios.

Technical Parameters

Product Name :DC Load Bank / DC  Dummy Load Bank

Power Range:1kW –50MW (Customizable )

DC Voltage Range :12V/24V/48V/110V/220V/400V/600V/800V/1000V (Optional)

Load Type:Pure Resistive DC Load 

Discharge Mode :Constant Current / Constant Power / Step Fixed Load

Structure Type :Portable Mobile / Rack Mount / Container High-power

Control Mode:local manual control, local PLC control,remote control,Laptop control and PC upper computer intelligent control

Monitoring Parameters:DC Voltage, DC Current, Active Power, Discharge Capacity, Running Time, Temperature

Cooling Method :Silent Forced Air Cooling

Test Accuracy:±1% High Precision

Protection Function:Over-current, Over-voltage, Over-temperature, Short-circuit, Overload, Fan Failure Protection

Core Material:High-temperature Resistant Alloy Resistor / 耐高温合金电阻

Shell Material :Galvanized Steel Plate + Anti-corrosion Powder Coating

Working Environment:-40℃~+55℃, Humidity ≤95% (No Condensation), Indoor & Outdoor Available

Certification:CE, ISO9001 Quality Management System Certification

Custom Service :Support Power, Voltage, Structure, Function Customization

Customized Support:OEM, ODM, OBM

Application Scenarios

DC Load Bank is dedicated to all types of DC power equipment performance testing and aging discharge work. It solves the problem of insufficient accuracy and poor stability of traditional AC load banks in DC system testing. It is widely used for battery capacity detection, communication rectifier aging test, electric vehicle charger calibration, energy storage power station commissioning, solar panel power verification and DC power supply factory inspection, covering new energy, communication, electric power and laboratory research fields.

• Battery & UPS Discharge Testing---DC UPS LOAD BANK
 Accurately test the actual capacity, discharge stability and service life of lead-acid batteries, lithium batteries and DC UPS battery packs. Complete regular discharge maintenance to prevent battery vulcanization and capacity attenuation, ensuring emergency power supply reliability.

• EV Charger & New Energy Testing---DC EV LOAD BANK 
Simulate real vehicle DC charging load, conduct full-load aging and dynamic performance testing for DC charging piles and charging modules, verify output power stability and over-current protection performance, meeting factory quality inspection and project acceptance standards.

• Communication Power & Rectifier Testing
Professional aging and load testing for 48V communication rectifiers, switching power supplies and DC distribution systems, detect long-term operating stability of equipment, eliminate hidden dangers of unqualified product output, and ensure stable operation of communication base station power supply.

• Energy Storage & Photovoltaic Testing---Energy Storage DC Load Bank
 Used for energy storage inverter DC side load test and solar panel power parameter verification, simulate actual power generation and power consumption load conditions, accurately evaluate power equipment efficiency and load adaptability.

• Laboratory R&D & Type Test---DC Dummy Load BANK
 Adopt standard export fumigated wooden cases or fumigation-free plywood cases, power research institutes and power equipment manufacturers, support new product R&D testing, type test and data calibration, meeting high-standard industrial testing requirements.

Packaging & Shipping

Adopt standard export fumigated wooden box or iron frame packaging, shockproof, pressure-resistant and moisture-proof, suitable for global sea, land and air long-distance transportation. MOQ supports 1 unit, fast delivery within 5-7 working days for conventional models. We provide global one-stop technical guidance, on-site debugging and long-term after-sales warranty service, supporting customized DC test solutions for special voltage and power requirements.