Battery Maintenance Solutions for Electric Buses

In 2021, China launched the comprehensive implementation of the "New Energy Vehicle Industry Development Plan (2021-2035)," providing strong support for the high-quality development of the new energy vehicle sector. In this context, ensuring the safety of new energy vehicles has become a top priority.

As the core component of new energy vehicles, batteries account for approximately one-third of the total vehicle cost. Maintaining optimal battery performance is crucial not only for vehicle safety but also for controlling material costs.

Demand & Solutions

The motive battery pack is made up of many individual cells, and even slight differences between them can be amplified over time as the charge and discharge cycles increase.

The actual capacity of the battery pack follows the "barrel principle," meaning the overall pack capacity is limited by the weakest cell (pack capacity ≤ lowest cell capacity × number of cells). This imbalance significantly reduces battery life. Additionally, the built-in equalization systems in many battery packs are inefficient and often fail to meet the needs of effective lithium battery balancing maintenance.

BattFix offers comprehensive maintenance solutions tailored for lithium battery-powered buses. We provide customized testing and maintenance equipment designed to address common issues such as cell voltage imbalance, significant voltage drops after equalization, poor equalization performance, and large voltage discrepancies observed before leaving the factory. Our solutions ensure enhanced battery performance and longer lifespan.

Major Clients

Solution-1：Pack/Module Equalization

The LIFG Series Tester is an intelligent and efficient lithium battery equalization tool designed to quickly address voltage inconsistencies in lithium battery packs. It allows for the creation of voltage differences between cells, simulating potential issues that may arise under extreme working conditions. This feature makes it ideal for research and development experiments. Compatible with various types of lithium battery packs, the LIFG Series is the perfect solution for battery manufacturers, distributors, and service providers, ensuring optimal battery performance and longevity.

The LIFG Series Tester features a simultaneous charge and discharge equalization mode, significantly improving equalization efficiency by 2-3 times and resolving capacity reduction caused by pseudo-faults. Each cell channel operates independently, addressing issues like low voltage in individual cells, and includes a voltage clamp function to ensure effective equalization. The 7-inch LCD touchscreen offers an intuitive interface, allowing easy operation and real-time display of various parameters.

Solution-2: High Current Single Channel Fast Equalization

The LIFG-0530CT efficiently addresses large voltage drops in lithium battery modules, enabling quick and accurate cell maintenance, capacity testing, SOC adjustment, and battery string voltage balancing. Featuring constant current charging and discharging modes, it supports a maximum current of 30A. Real-time monitoring of cell voltage and current ensures accurate data, while accumulated charge/discharge power calculations guarantee consistent maintenance results.

Solution-3: Comprehensive Maintenance & Factory Inspection

The FGCD series testers integrate advanced charging and discharging technology, providing multiple test and maintenance modes for manufacturers. These testers enable discharge, charge, and charge-discharge cycle tests for lithium battery packs, covering a wide voltage range to support batteries of various voltage levels. They are ideal for discharging, charging, and activation tests, ensuring versatility and high efficiency.

With built-in CAN communication with the BMS, the FGCD testers allow real-time monitoring of important parameters such as cell voltage, current, and temperature. The system automatically adjusts input/output currents to prevent overcharging and over-discharging, addressing common issues like poor consistency, low charging efficiency, and incomplete charging, ultimately improving the performance and longevity of lithium battery packs.

Conclusion

BattFix will continue to focus on the growth of the electric vehicle industry, delivering more professional and high-quality maintenance solutions. We help customers accurately detect and repair faulty battery modules, extend battery lifespan, and ensure vehicle mileage. Our goal is to make maintenance and inspection tasks simpler, more convenient, efficient, and precise for our customers!