Explore our dynamic range of high-efficiency battery chargers, adjustable laboratory bench power supplies, step-down/step-up converters, and wave power inverters engineered for high-precision testing configurations.
Modern electrical distribution systems, aerospace avionics, electric vehicle (EV) drivetrains, and grid energy storage devices demand ultra-precise load testing. An Electronic Load Tester functions as a critical validator, acting as an adjustable sink that simulates complex real-world electrical stress. It runs complex discharge scenarios under precise control parameters, including Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), and Constant Power (CP) modes.
As a professional OEM/ODM manufacturer, Shenzhen Wemaxpower Technology Co., Ltd. leverages over 7 years of deep engineering expertise in power conversion, high-power DC-DC converters, and programmable DC power supplies. We produce customizable, robust electronic load platforms, enabling developers and QA laboratories worldwide to perform stress tests with exceptional precision and safety.
Whether validating a 72V EV scooter charger, a 1500W laboratory power supply, or compact buck-boost converters, testing platforms require exact transient responses and slew rate configurations.
By transitioning internal dissipation topologies from traditional silicon MOSFETs to SiC semiconductors, our high-power electronic loads achieve superior thermal efficiency and extreme voltage tolerance. This allows for ultra-compact 3U/6U rack designs that can manage continuous 15kW+ loads.
Future power architectures rely on automated, remote API control. We are integrating advanced IoT Ethernet links that support SCPI (Standard Commands for Programmable Instruments) over TCP/IP, Modbus-RTU, and CAN-bus protocols for remote diagnostics.
Rather than converting 100% of the load current into thermal waste, modern green labs utilize bidirectional regenerative topologies. Our future modules aim to recover up to 93% of processed testing power and feed it back to the local utility grid, keeping test labs cool and reducing overall energy footprints.
Reliable load simulation is critical across many commercial sectors. Here is how our custom electronic loads and rugged power modules solve complex engineering challenges:
Simulating EV battery profiles to test DC-DC fast chargers, electric scooter ports, and vehicle-to-grid (V2G) systems. Ensuring dynamic output matching under fluctuating load steps.
Validating Photovoltaic (PV) inverters and residential Battery Energy Storage Systems (BESS) by simulating extreme solar panel fluctuations and battery discharge patterns.
Testing highly sensitive rack-mounted communication DC converters (e.g. 220Vdc to 48Vdc) for microsecond voltage drop tolerance and low ripple output.
Based in Shenzhen, the global hub for electronics manufacturing, Shenzhen Wemaxpower Technology Co., Ltd. combines localized raw material sourcing with advanced production assembly to guarantee highly resilient supply pipelines. We mitigate common component shortages by maintaining strategic reserves of magnetic cores, MOSFETs, and high-temperature capacitors.
Incoming inspection of components, magnetic cores, PCB substrates, and structural enclosures to ensure strict adherence to CE, UL, and RoHS standards.
Automated optical inspection (AOI) and power-on board-level debugging to confirm gate drive waveforms and basic voltage regulation limits.
Full system parameters are tested using precision load boxes to verify dynamic response limits, temperature control, and communication interfaces.
Mandatory full-load thermal stress testing in specialized environmental chambers. Designed to detect early infant mortality failures before shipment.
Deploying load systems internationally requires compliance with local safety standards and strict calibration regulations. We help global clients navigate compliance requirements, ensuring that all custom electronics adhere to safety standards (CE, UL, FCC, RoHS) and match local electricity grid tolerances (110V AC 60Hz, 220-240V AC 50Hz).
Our products meet CE, EN 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use), and EN 61326-1 (EMC requirements). Our IP67 waterproof converters are built to survive extreme humidity and shock environments, making them ideal for heavy machinery and rugged industrial setups.
We offer extensive tailored engineering options. From customized output voltage ranges (e.g. 12V, 24V, 36V, 48V, 72V, 84V, 100V) and specialized rack-mount forms, to unique enclosure materials and custom communication interfaces, our engineering team works directly with yours to build systems to your exact specifications.
Take an inside look at our manufacturing center, high-precision assembly processes, SMT operations, and testing facilities in Shenzhen, China. Our team is dedicated to delivering high-quality, reliable, and performance-tested power systems.
Factory Production Area & SMT Assembly Lines
Quality Testing & Calibration Station
Automated Component Winding Line
Burn-in Rack & Multi-channel Electronic Loads
Safety Insulation & High Voltage Isolation Testing
Final System Calibration & Packing Area
Get answers to the most common questions about customized electronic load testers, power supplies, and our OEM/ODM design and manufacturing capabilities.
Unlike static power resistors, programmable electronic loads can simulate real-world, dynamic operating conditions. They allow users to program specific load profiles (e.g. step responses, ramp tests, and pulse sequences) in Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), or Constant Power (CP) modes. This lets you accurately evaluate the transient response, voltage regulation, stability, and safety limits of your power supplies and battery systems.
Our 7 years of industrial manufacturing experience are backed by a robust 4-step Quality Control (QC) process: Raw Material IQC, Semi-Finished Test, Finished System Test, and a final thermal Burn-In & Aging Test. This rigorous workflow ensures that every unit—from small DC-DC step-down converters to high-power programmable rack systems—delivers reliable performance in critical environments.
Yes. Our programmable DC power supplies and loads can be configured with standard communication interfaces, such as RS232, RS485, USB, CAN-bus, or Ethernet. They support SCPI commands and Modbus-RTU protocols, making it easy to integrate them into automated test environments (ATE) using software like LabVIEW or custom Python scripts.
Absolutely. Our IP67-rated products, including our 36V/48V to 12V buck modules and automotive converters, are vacuum-potted with high-grade thermally conductive epoxy. This ensures total protection against water immersion, fine dust, high physical vibration, and wide temperature swings, making them highly reliable for golf carts, marine vessels, and remote telecommunications.
Explore the second half of our hardware catalog, featuring highly integrated boost/buck converters, active PFC power modules, pure sine wave power inverters, and IP67 industrial regulators.
Wemax Power