Quality Management

Placing quality at the top, we leave no stone unturned when it comes to detail. With a focus on performance, our products serve as a testament to our unwavering commitment to quality management.

Our Quality Management System

Quality is an integral aspect of BLJ Solar’s corporate ethos. We strive to uphold the rigorous standards set forth by internationally recognized quality systems such as ISO 9001, ISO 14001, and OHSAS 18001.

By seamlessly integrating these standards into our core operations, we ensure a consistent commitment to quality. Furthermore, our relentless pursuit of continuous improvement drives our manufacturing processes to deliver exceptional quality at every step.

Tests throughout the Production

BLJ Solar employs a strict quality management system to conduct higher standards to guarantee that from product design to mass production. So our products can offer high efficiency, stable performance, and longer life.

Battery test
Safety test
Reliability test
Environmental adaptability test
BMS test
Overall performance test

Battery Test

Our Battery Pack Performance Test involves various tests to evaluate the charging and discharging functions, load voltage, and voltage balance, as well as overcharging and over-discharging protection of the batteries.

These tests assess the capacity, output voltage, cycle life, and other parameters to ensure compliance with quality standards.

Safety Test

Our rigorous battery safety testing ensures the highest standards of performance and reliability. Through comprehensive overcharging, over-discharging, and external short-circuit tests, we assess the battery’s ability to withstand extreme conditions and prevent risks such as thermal runaway or explosion, ensuring the utmost safety for our customers and their applications.

Reliability Test

Our battery reliability testing ensures the robustness and longevity of our products. Through specialized equipment such as aging cabinets, UV accelerated weathering testers, fully automatic plugging and unplugging test machines, and wear testing machines, we subject batteries to rigorous simulations of extreme conditions and long-term usage.

These tests evaluate parameters such as aging, outdoor weathering, connector performance, and wear resistance, guaranteeing the reliability and durability of our batteries in real-world applications.

Environmental adaptability test

Our rigorous environment adaptability testing ensures that our solar products can perform reliably in various conditions. With state-of-the-art equipment such as vibration testers, salt spray testers, rain testers, and double-layer constant temperature and humidity experimental boxes, we subject our products to simulated scenarios of vibration, corrosion, water impact, and extreme temperature and humidity.

These tests evaluate their resistance to environmental factors, guaranteeing their adaptability and durability in diverse real-world environments.

BMS test

Battery management system (BMS) tests include functions such as voltage monitoring, current control, temperature regulation, and cell balancing. We ensure the accuracy and reliability of BMS by conducting comprehensive tests, including voltage measurement accuracy, communication reliability, and fault detection. These tests ensure optimal performance and safety of our battery systems.

Overall performance test

Our rigorous testing ensures the performance, reliability, and safety of our energy storage batteries. We test capacity, cycle life, temperature performance, safety features, efficiency, internal resistance, voltage range, and compliance with standards.

Reliability testing simulates real-world conditions, and fault analysis helps improve product design and manufacturing processes.

Advanced Inspection Equipment

Our R&D and testing laboratory of special power supply technology has all kinds of large-scale power electronics R&D equipment and precision testing and analysis instruments.

Battery short circuit test

Battery performance test

Battery drop test

Battery cell test


Simulated transport vibration test

Warranty & Guarantee

We offer at least a one-year warranty of free after-sale service for all BLJ Solar products.

With the promised warranty period, we will offer all clients online troubleshooting support, and will replace the drawback battery, modular, and accessories timely.

There is always after-sale service for all products within their lifespan.

Explore More about Our Capabilities

As an esteemed manufacturer of solar products, BLJ Solar has an abundance of insights and expertise to offer.

Technology has been the driving force behind our remarkable growth over the past decade, positioning us as a key player in the energy storage industry.

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Technical Strength >

From battery pack to energy storage system, our factory is able to fulfill the whole manufacturing with our own production lines, laboratories, workers, and technology.

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In-house Manufacturing >

Placing quality at the top, we leave no stone unturned when it comes to attention. With a focus on performance, our products serve as a testament to our unwavering commitment to quality management.

Learn More >
Our Factory >

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