How To Test Solar Light Batteries?

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By Michael Zhang || Updated on 14th March 2024

Michael Zhang is a seasoned professional with 15 years of experience in the solar lights industry. Throughout his career, he has been actively involved in product design and developing, gaining valuable expertise and insight into the industry. Known for his dedication and professionalism, Michael has contributed significantly to the growth and success of various solar lights projects. His extensive knowledge and hands-on experience make him a trusted authority in the field, and he continues to innovate and excel in his role.

As an important source of energy for modern electronic devices, the quality of lithium batteries directly affects the performance and safety of the devices. Therefore, conducting various tests on lithium batteries to ensure their quality is extremely important. From performance to safety, each testing method has its unique role. Today, this blog introduces 34 commonly used lithium battery testing methods.

Cycle Life Testing

This test is conducted to evaluate the performance degradation of batteries after multiple charge-discharge cycles. By subjecting the batteries to multiple charge-discharge cycles under standard conditions, parameters such as capacity and internal resistance are recorded after each cycle. Analyzing the trend of performance changes, cycle life is an important indicator for measuring battery performance and lifespan, holding significant significance for battery design and application.

Different Discharge Rate Characteristics Testing

This test is conducted to study the performance of batteries under different discharge currents. By setting different discharge rates, parameters such as discharge voltage and discharge time under different rates are observed. It helps in understanding the battery’s performance in different application scenarios, providing reference for battery usage.

Different Temperature Discharge Characteristics Testing

This test evaluates the discharge performance of batteries under different temperature conditions. By conducting discharge tests on batteries under different temperature conditions and recording parameters such as discharge voltage and discharge capacity, it helps in understanding the performance variation of batteries at different temperatures, providing basis for battery application in different environments.

Charging Characteristics Testing

This test studies the charging performance of batteries, including charging speed and charging efficiency. By conducting charging tests under different conditions and observing voltage and current changes during the charging process, it helps in optimizing charging strategies, improving charging efficiency, and extending battery lifespan.

Self-Discharge Characteristics Testing

This test is conducted to evaluate the self-discharge rate of batteries in a static state. By fully charging the batteries and letting them stand for a period of time, the loss of battery capacity is measured. Self-discharge rate is one of the important indicators for measuring battery performance, holding significant importance for predicting battery lifespan.

Storage Characteristics Testing

This test evaluates the performance changes of batteries after long-term storage. Batteries are stored under specific conditions for a period of time, and then their performance parameters are tested. It helps in understanding the performance variation of batteries during storage and provides guidance for battery storage and usage.

Over-Discharge Characteristics Testing

This test is conducted to study the performance and safety of batteries under over-discharge conditions. By discharging the batteries to over-discharge state and observing the performance changes and safety performance of batteries, it helps in understanding the effects of over-discharge on batteries, providing reference for safe battery usage.

Different Temperature Internal Resistance Characteristics Testing

This test evaluates the change of internal resistance of batteries at different temperatures. By measuring the internal resistance of batteries under different temperature conditions and analyzing the change trend of internal resistance with temperature, it helps in optimizing the conditions for battery usage.

Temperature Cycling Testing

This test simulates the temperature variation experienced by batteries in actual usage, evaluating their performance stability. Batteries are cycled within a set temperature range, and changes in performance parameters are tested. It helps in understanding the performance of batteries under temperature variation conditions, providing basis for battery design and application.

Drop Testing

This test evaluates the safety of batteries when subjected to drop impact. By simulating the drop impact that batteries may encounter in actual usage, it observes whether the batteries leak, rupture, or have other safety issues, ensuring the safety of batteries in actual usage.

Vibration Testing

This test studies the performance and safety of batteries under vibration conditions. Batteries are subjected to vibration testing on a vibration table, and changes in performance and safety are observed. It helps in understanding the performance variation of batteries under vibration conditions, providing reference for battery application.

Capacity Testing

This test measures the actual capacity of batteries to evaluate their performance. By discharging the batteries and measuring the amount of electricity they can deliver under specific conditions, capacity is one of the important indicators for evaluating battery quality and performance.

Internal Resistance Testing

This test measures the internal resistance of batteries to understand their performance status. Internal resistance reflects the internal conductivity of batteries, which significantly affects battery performance and lifespan.

Gas Measurement System (GMS) Testing

By using a gas analysis system (GMS) to detect the types and concentrations of gases generated during battery charging and discharging processes, the safety performance of batteries is evaluated. Real-time gas monitoring of batteries during charging and discharging processes helps in timely identification of potential safety hazards inside batteries, ensuring their safe usage.

High-Low Temperature Shock Testing

This test evaluates the performance and safety of batteries under extreme temperature conditions. Batteries are subjected to rapid temperature changes at extremely high or low temperatures, and changes in performance and safety are observed.

Mechanical Shock Testing

Mechanical shock testing aims to evaluate the performance and safety of batteries when subjected to mechanical shock. This test simulates the collisions, drops, or other forms of mechanical shock that batteries may encounter in actual applications.

High Temperature and High Humidity Testing

High temperature and high humidity testing aims to evaluate the performance stability and weather resistance of batteries under high temperature and high humidity conditions. This test simulates the extreme conditions that batteries may encounter in tropical, humid, or high-temperature working environments.

Short Circuit Testing

This test is conducted to evaluate the safety of batteries under short circuit conditions. By artificially creating a short circuit between the positive and negative terminals of batteries, the reaction of batteries, such as changes in temperature, voltage, current, and whether ignition or explosion occurs, is observed.

Overcharge and Over-discharge Testing

This test involves operating the battery beyond its rated charging voltage or discharge depth. Observing the performance changes, temperature variations, and whether leakage, rupture, or ignition occurs, the test helps understand whether the battery’s protection mechanism is effective and its safety performance under abusive conditions.

Voltage Endurance Testing

This test evaluates the stability and safety of batteries under high voltage conditions. Applying a voltage higher than their normal operating voltage, it observes whether the batteries experience breakdown, leakage, or other abnormal conditions.

Impact Testing

By simulating the performance and safety of batteries when subjected to impact, this test observes the structural integrity, electrical performance, leakage, ignition, and other conditions of batteries.

Vibration Testing

This test subjects the battery to vibration tests at different frequencies and amplitudes to observe changes in performance and safety.

Heating Testing

Placing the battery in a high-temperature environment, this test observes changes in performance, temperature, and whether leakage or ignition occurs.

Fire Testing

Burning the battery with a flame, this test observes the burning behavior, flame spread, and whether toxic gases are produced. It helps understand the safety performance of batteries in fire situations, providing data support for fire prevention and control.

Temperature Cycling Testing

This test cycles the battery within a set temperature range to observe its performance under different temperature conditions. It helps understand the performance variation of batteries under temperature change environments, providing reference for battery application in complex temperature conditions.

Trickle Charging Testing

Using a small current to charge the battery, this test observes the charging efficiency, charging speed, and whether overheating occurs. It helps understand the charging performance and safety of batteries under trickle charging mode.

Free-fall Testing

This test drops the battery freely from different heights and angles onto a hard surface to observe whether damage or leakage occurs. It helps understand the safety performance of batteries under drop impact, providing a basis for safety assessment during transportation and usage.

Low Pressure Testing

Placing the battery in a low-pressure environment, this test observes changes in performance and whether leakage or expansion occurs. It helps understand the performance variation and safety performance of batteries in high-altitude, aviation, and other low-pressure environments.

Forced Discharge Testing

By subjecting the battery to forced discharge using external equipment, this test observes the discharge performance, voltage changes, and whether abnormal conditions occur. It helps understand the performance variation and safety performance of batteries under abnormal discharge conditions, providing reference for safe battery usage.

Heating Plate Testing

Placing the battery on a heating plate for heating, this test observes changes in performance, temperature, and whether ignition or explosion occurs. It helps understand the safety performance of batteries in locally high-temperature environments, providing a safety assessment basis for battery application in high-temperature environments.

Thermal Shock Testing

In this test, the battery is rapidly transferred from a high-temperature environment to a low-temperature environment, or vice versa, observing performance changes and whether leakage, rupture, ignition, or other abnormal conditions occur during temperature changes.

Needle Penetration Testing

Using a special needle to pierce the battery, this test simulates sharp object penetration that batteries may encounter in actual usage. It observes whether ignition, explosion, and performance changes occur after penetration, evaluating the battery’s safety performance.

Compression Testing

Applying a certain pressure to the battery using a compression device, this test simulates the squeezing that batteries may encounter during transportation, usage, or installation. It observes whether leakage, rupture, ignition, and other phenomena occur, and tests the performance changes of batteries after compression.

Heavy Object Impact Testing

Using a certain mass of heavy object to impact the battery, this test simulates the situation when batteries fall or are subjected to external impacts. It observes whether damage, leakage, ignition, and other phenomena occur, and evaluates the performance changes of batteries after impact.

Conclusion

As a solar light supplier, Fligreen places great importance on the quality of batteries. We understand that batteries, as one of the core components of solar lights, directly impact the performance and stability of the products.

Therefore, we are committed to selecting high-quality battery suppliers and strictly controlling the quality management during the battery production process to ensure that each battery meets high standards of quality requirements.

Through precise testing and comprehensive evaluation of batteries, we ensure that the solar light products we provide can operate stably in various environments, providing customers with durable and reliable solar light products.

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