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China Hunan Bonnen Battery Technology Co., Ltd.
Hunan Bonnen Battery Technology Co., Ltd.
Bonnen Battery is a leading manufacturer of lithium batteries, specializing in custom solutions for a variety of applications. With a decade of experience, we pride ourselves on our ability to meet the unique needs of our clients. Our team consists of some of the most talented individuals in the industry, dedicated to the development and production of high-quality batteries.Our battery solutions find wide-ranging applications, including electric car lithium batteries, electric boats, energy ...
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No. of Employees
Annual Sales
25 million+
Year Established
Export p.c
90% - 100%
Customers Served
Worldwide 500+
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quality Boat Lithium Battery & EV Lithium Battery factory

10Kwh 48v Lifepo4 Powerwall 200Ah Solar Battery Backup System For Home



Total Energy:10.24kWh

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BESS 100Kw Commercial Energy Storage System 200 Kwh Battery Storage Cabinet LiFePo4

Battery Chemistry:LiFePo4 Battery

Battery Cell:Tier One, A+ CATL/EVE Cell Composition

Application:Manufacturing Facilities, Commercial Buildings, Warehouses And Distribution Centers, Renewable Energy Integration, Hotel And Hospitality Industry, Farming And Agriculture, Data Centers Etc

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Liam Davies
Bonnen's electric boat batteries: superb! Bought 200 sets last year, happy with product/service. Reliable, durable, even in tough conditions. Smooth partnership, prompt support. Highly recommend!
Michael Thompson
Recently worked with Bonnen on our UTV project, their engineering team was impressive! Professional, attentive, and quality work. Would recommend!
Benjamin Parker
Bonnen's electric truck lithium batteries have impressed us for 2 years. Reliable & durable, we're placing a bulk order. Excited to continue our partnership!
James Mitchell
Working with Bonnen for our industrial energy storage has been smooth. Their team ensured success from customization to implementation. We look forward to future collaboration.
Simon Müller
Bonnen's home energy solutions impressed me with reliability, aesthetics, and sales boost. Highly recommend their high-performance technology.
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What Are The PCS, BMS And EMS In Battery Energy Storage System Components?
What Are The PCS, BMS And EMS In Battery Energy Storage System Components?
    In today's energy sector, energy storage technology is playing an increasingly critical role. As a leading company in the lithium battery manufacturing field, Bonnen is dedicated to unveiling the key technologies within energy storage systems, including Battery Management Systems (BMS), Energy Management Systems (EMS), and Power Conversion Systems (PCS).   Energy storage systems are technologies that store electrical energy for later use. They help balance the supply and demand on the grid, improve energy utilization efficiency, and reduce dependence on traditional energy sources. A complete electrochemical energy storage system primarily consists of battery packs, BMS, EMS, PCS, and other electrical equipment.   In an energy storage system, the battery pack sends status information to the BMS. The BMS shares this information with the EMS and PCS. Based on optimization and scheduling decisions, the EMS sends control information to the PCS and BMS, directing the charging and discharging processes of individual batteries or battery packs.   By integrating advanced BMS, EMS, and PCS technologies, Bonnen ensures the optimal performance, reliability, and safety of energy storage systems, helping to lead the way in sustainable and efficient energy management.   What is PCS?   PCS (Power Conversion System) of energy storage system.   PCS can work in the following two states and therefore has two important functions:   1. Rectifier working state: convert the AC power of the grid into DC power when charging the battery cell of the energy storage system.   2. Inverter working state: convert the DC power of the battery cell into AC power and feed it into the grid when discharging the battery cell of the energy storage system;   Therefore, PCS is an important device for realizing bidirectional energy transfer between DC battery cells and AC grid.   In recent years, due to the development and performance improvement of new power electronic devices including IGBT (insulated gate bipolar transistor) and IGCT (integrated gate commutated thyristor), the production and application of high voltage and high power PCS devices have become a reality.   Specifically, Battery Management System BMS: plays a sensing role, mainly responsible for battery monitoring, evaluation, protection and balancing;   Energy Management System EMS: plays a decision-making role, mainly responsible for data collection, network monitoring and energy scheduling;   Energy Storage Converter PCS: plays an execution role, the main function is to control the charging and discharging process of the energy storage battery pack and perform AC/DC conversion.     What is BMS?   BMS (Battery Management System), commonly known as the battery nanny or battery steward, is a device that cooperates to monitor the status of energy storage batteries. BMS and battery cells together form a battery system.   BMS Function   BMS plays a sensing role in the energy storage system. Its main function is to monitor the operating status of each battery in the battery energy storage unit and ensure the safe operation of the energy storage unit. BMS measures the basic parameters of the battery, including voltage, current, temperature, etc., to prevent overcharging and over discharging of the battery and extend the battery life.   BMS needs to calculate and analyze the battery's SOC (remaining battery capacity) and SOH (battery health status), and report abnormal information in a timely manner.   BMS Layered perception architecture   Most BMS systems are three-layer architectures, and the hardware is mainly divided into slave control unit, master control unit and master control unit.   1. Bottom layer: slave control BMU, which is the single cell management layer. It is composed of battery monitoring chip and its auxiliary circuits, responsible for collecting various types of information of single cells, calculating and analyzing the battery's SOC (remaining battery capacity) and SOH (battery health status), realizing active balancing of single cells, and uploading single cell abnormal information to the master control.   2. Middle layer: master control BCU, which is the battery pack management layer. Collect various single cell information uploaded by BMU and collect battery pack information. Calculate and analyze the SOC and SOH of the battery pack.   3. Upper layer: master control, which is the battery cluster management layer. Responsible for the overall coordination within the system and external information interaction with EMS and PCS, and control the operation process of the entire BMS system according to external requests.   Energy storage BMS development trend   Currently, BMS functions have evolved from basic functions such as monitoring, communication, protection, display, and storage to advanced functions such as battery system safety diagnosis and long-life operation and maintenance, and system economic index diagnosis.   From a technical point of view, active balancing technology will become the standard, and technologies such as big data and artificial intelligence will be applied to battery status algorithms; in the future, the survival space of low-end BMS suppliers will become smaller and smaller.   Intelligent operation and maintenance, advanced functions, etc. are the core points for differentiated competition among manufacturers in the future.   Deeply integrate big data management and cloud-edge collaboration.   Develop cloud-edge collaboration based on BMS, give full play to the data aggregation capabilities of BMS, realize the collection, analysis, status diagnosis and evaluation of real-time data of battery systems at the station-level equipment end, and realize data cleaning and pre-processing;   Based on more station-side data, the cloud can realize multi-dimensional spatiotemporal data mining, refining, and fine processing, realize more detailed and comprehensive evaluation of battery operation status, safety status, and energy storage system reliability, dynamically optimize BMS operation strategies and algorithm models and set them down to the equipment end, achieve the best safety and economic operation and maintenance mode, realize intelligent operation and maintenance, and provide data support for energy aggregation/distribution/trading, and provide guarantee for the value realization of energy storage systems.     What is EMS?   EMS (Energy Management System) is the decision-making center of the energy storage system and plays the role of "brain". Energy management systems include grid-level energy management systems and microgrid-level energy management systems. The EMS mentioned in energy storage systems generally refers to the microgrid level.   Composition   Energy management systems are generally divided into equipment layer, communication layer and application layer.   Equipment layer: requires energy acquisition and conversion (PCS, BMS) as support;   Communication layer: mainly includes links, protocols, transmission, etc.;   Information layer: mainly includes cache middleware, database, and server, among which the database system is responsible for data processing and data storage, records real-time data and important historical data, and provides historical information query;   Application layer: The manifestations include APP, Web, etc., providing managers with a visual monitoring and operation interface. The specific functions cover energy conversion decision-making, energy data transmission and collection, real-time monitoring and control, operation and maintenance management analysis, electric energy/power visual analysis, remote real-time control, etc.   EMS products generally serve as the hub for the interaction between energy storage systems and higher-level information systems.   Energy storage systems participate in grid dispatching, virtual power plant dispatching, "source-grid-load-storage" interaction, etc. through EMS.   To ensure the safe and reliable operation of energy storage systems, BMS, EMS and PCS need to have high reliability and high performance. As a professional lithium battery manufacturer, Bonnen has advanced technology and rich experience, and can provide customers with high-quality BMS, EMS and PCS products. If you are interested in energy storage systems, welcome to visit Bonnen's official website to learn more about energy storage systems.
Lithium Boat Batteries vs. Traditional Batteries Which Is Right for You?
Lithium Boat Batteries vs. Traditional Batteries Which Is Right for You?
    When it comes to powering your electric boat, the choice of battery can significantly impact performance, cost, and environmental footprint. At Bonnen Battery, we understand the critical role batteries play in Boat applications. In this blog, we will compare lithium Boat batteries with traditional batteries to help you make an informed decision.   Understanding Battery Types   1. Traditional Boat Batteries   Traditional Boat batteries include various types of lead-acid batteries such as flooded, AGM (Absorbed Glass Mat), and gel batteries. Each type has its own characteristics and benefits.   1.1 Flooded Lead-Acid Batteries:   Composition: Consist of lead plates submerged in sulfuric acid. Advantages: Cost-effective, readily available, and well-understood technology. Maintenance: Requires regular checking of water levels and cleaning of terminals to prevent corrosion. Performance: Performs adequately in moderate conditions but can suffer from sulfation if not properly maintained.   1.2 AGM Batteries:   Composition: Use a fiberglass mat to absorb the electrolyte, preventing spillage. Advantages: Maintenance-free, more resistant to vibration, and can be mounted in any position. Performance: Better performance in cold temperatures and higher discharge rates compared to flooded batteries.   1.3 Gel Batteries:   Composition: Use a gelified electrolyte to prevent leakage. Advantages: Maintenance-free, good for deep cycle applications, and resistant to vibration. Performance: Stable and reliable, but can be sensitive to overcharging which may reduce lifespan.   1.4 Disadvantages of Traditional Batteries:   Weight: Heavier and bulkier, impacting boat performance and storage. Lifespan: Typically have shorter lifespans, often 3-5 years with proper maintenance. Charging: Slower charging times and less efficient energy usage. Maintenance: Regular maintenance is required to ensure optimal performance and longevity.   2. Lithium Boat Batteries   Lithium-ion batteries, specifically lithium iron phosphate (LiFePO4) batteries, represent the cutting edge in Boat battery technology.     2.1 Composition:   Cathode: Made of lithium iron phosphate, known for its stability and safety. Anode: Typically composed of graphite. Electrolyte: A lithium salt dissolved in an organic solvent. Advantages: Higher energy density, lighter weight, and long cycle life.   2.2 Advantages of Lithium Batteries:   Energy Density: Up to three times the energy density of lead-acid batteries, allowing for smaller and lighter battery packs. Lifespan: Can last 10-15 years or more, with thousands of charge cycles. Efficiency: Higher efficiency in charging and discharging, with minimal energy loss. Maintenance: Virtually maintenance-free, with no need for regular electrolyte top-ups or terminal cleaning. Performance: Excellent performance in a wide range of temperatures, and better resistance to deep discharge. Environmental Impact: More environmentally friendly due to longer life and better recyclability.   2.3 Disadvantages:   Initial Cost: Higher upfront cost, though offset by long-term savings and performance benefits. Charging Equipment: Requires specific chargers designed for lithium batteries to ensure safe and efficient charging. Key Comparison Factors   1. Energy Density and Weight   Lithium batteries offer significantly higher energy density compared to traditional lead-acid batteries. This means more energy can be stored in a smaller, lighter package. For instance, a lithium battery can weigh up to 70% less than a comparable lead-acid battery, which is a crucial factor for boat performance, handling, and storage.   2. Impact on Boat Performance   Weight Reduction: Reduces overall boat weight, improving speed and fuel efficiency. Space Efficiency: Frees up valuable space for other equipment or storage.   3. Lifespan and Durability   Lithium batteries have a much longer lifespan, often lasting 3-5 times longer than traditional batteries. Lead-acid batteries typically offer 300-500 cycles, whereas lithium batteries can provide 3000-6000 cycles or more, depending on usage patterns.     4. Durability   Boat Environment: Better resistance to the corrosive effects of saltwater and varying temperatures. Lithium batteries have built-in Battery Management Systems (BMS) that protect against overcharging, deep discharging, and overheating, further enhancing durability.   5. Charging Efficiency   Lithium batteries excel in charging efficiency. They can be charged at higher rates, significantly reducing downtime.   6. Technical Details   Charging Times: Lithium batteries can often be charged to 100% capacity in a few hours even less than 1 hour, compared to 8-12 hours for lead-acid batteries. Efficiency: Less energy is lost during charging and discharging, with efficiencies often exceeding 95% compared to 80-85% for lead-acid batteries.   7. Maintenance Requirements   Traditional batteries require ongoing maintenance to function effectively.   7.1 Lead-Acid Battery Maintenance:   Water Levels: Regularly check and top up water levels to avoid sulfation. Terminal Cleaning: Prevent corrosion by cleaning terminals and applying protective sprays. Equalization Charging: Periodically perform equalization charges to balance the cells and prevent stratification.   7.2 Lithium Battery Maintenance:   Minimal Maintenance: No need for electrolyte top-ups or terminal cleaning. BMS: Integrated Battery Management Systems handle cell balancing and protect against common issues, ensuring optimal performance without user intervention.   8. Cost Considerations   While the initial purchase price of lithium batteries is higher, their longer lifespan and lower maintenance needs result in significant long-term savings.   8.1 Cost Analysis:   Initial Cost: Lithium batteries can cost 2-3 times more than lead-acid batteries. Total Cost of Ownership: When factoring in the extended lifespan, reduced maintenance, and higher efficiency, lithium batteries often provide a lower total cost of ownership over their lifecycle.   9. Environmental Impact   Lithium batteries have a smaller environmental footprint compared to traditional batteries.   10. Production and Disposal:   Lead-Acid Batteries: Production involves toxic materials, and disposal can lead to environmental contamination if not properly managed. Lithium Batteries: Production is less environmentally damaging, and they are more recyclable. The longer lifespan also means fewer batteries are needed over time, reducing overall environmental impact.   Practical Applications and Use Cases   1. Recreational Boating   For recreational boat owners, the benefits of lithium batteries are manifold.   1.1 Benefits:   Weight and Space: Less weight and more space for amenities or additional equipment. Performance: Consistent power output ensures a better experience on the water. Convenience: Minimal maintenance allows more time to enjoy boating and less time dealing with battery upkeep.   1.2 Examples:   Sailboats: Lighten the load and improve sailing performance. Yachts: More reliable power for luxury amenities.   2. Commercial Vessels   Commercial operators benefit from the reliability and efficiency of lithium batteries.   2.1 Benefits:   Reduced Downtime: Faster charging and longer lifespan mean less downtime for charging and maintenance. Cost Savings: Lower long-term costs due to fewer replacements and reduced maintenance. Reliability: Consistent power output is critical for commercial operations.   2.2 Examples:   Fishing Boats: Ensure reliable power for equipment and longer trips. Tour Boats: Provide a better experience for customers with uninterrupted power.   3. Specialty Boats   Specialty boats, such as fishing boats and high-performance craft, can greatly benefit from the superior performance of lithium batteries.   3.1 Benefits:   Quick Charging: Allows for more time on the water and less waiting for batteries to charge. High Performance: Provides the energy needed for high-performance boats.   3.2 Examples:   Fishing Boats: Quick charging and long-lasting power for extended trips. High-Performance Boats: Lightweight and high-power output for optimal performance. Making the Right Choice   1. Assessing Your Needs   To choose the right battery, start by evaluating your specific requirements.   2. Considerations:   Boat Size: Larger boats may benefit more from the weight savings of lithium batteries. Usage Patterns: Frequent and long-duration users will appreciate the long lifespan and quick charging of lithium batteries. Budget: While the initial cost is higher, consider the long-term savings and benefits.   3. Expert Recommendations   At Bonnen Battery, we provide personalized advice to help you make the best choice for your boat. Our experts can guide you through the decision-making process, ensuring you get the right battery for your needs.   4. Case Studies and Testimonials:   Real-World Examples: Success stories from customers who have switched to lithium batteries. Expert Insights: Detailed analysis of how lithium batteries have improved performance and reduced costs for various users. Conclusion   Lithium Boat batteries offer numerous advantages over traditional batteries, including higher energy density, longer lifespan, faster charging, and lower maintenance. While the initial cost is higher, the long-term benefits make lithium batteries a wise investment for electric boat owners.   Ready to make the switch to lithium Boat batteries? Contact Bonnen Battery today for personalized advice and high-quality lithium Boat batteries tailored to your needs. Explore our product range and discover how we can power your electric boating adventures.   For more information, visit our website and stay updated with the latest in Boat battery technology. Let Bonnen Battery be your trusted partner in powering your boat with the best lithium Boat batteries on the market.      
High Voltage vs. Low Voltage: Which is the Ideal Choice for Home Energy Storage?
High Voltage vs. Low Voltage: Which is the Ideal Choice for Home Energy Storage?
  In the realm of Solar PV systems, both high voltage and low voltage lithium battery systems reign supreme. But when it comes to your specific needs, which one holds the edge? This article delves into the comparison between High Voltage (HV) and Low Voltage (LV) lithium battery systems, empowering you to make an informed decision.   Understanding Low Voltage Battery Systems   Low voltage home battery backups typically operate below the 100V threshold. Their reduced voltage output translates to lesser power compared to their high voltage counterparts.   Advantages of Low Voltage Battery Systems   Low voltage home battery backups boast several advantages. They are notably easier to install and upgrade, allowing for parallel or series connection of multiple batteries. Moreover, their smaller physical footprint makes them ideal for space-constrained applications. Additionally, low voltage batteries are more cost-effective to manufacture than high voltage alternatives. Safety-wise, they hold certain advantages, albeit they may face challenges with start-up loads, which can be mitigated by temporarily linking the system to the grid or solar energy sources – albeit at the cost of time.        Application of Low Voltage Solar Batteries   Low voltage solar batteries find prominence in off-grid systems catering to medium to low energy demands. However, the choice of inverters plays a pivotal role. Each inverter is calibrated for a specific battery voltage range, dictating compatibility with high or low voltage batteries. Most battery inverters, rated at 48V or higher, can accommodate both types. Thus, selecting an inverter for low-voltage home energy storage necessitates consideration of its voltage range, ensuring alignment with the battery's nominal voltage.   Exploring High Voltage Battery Systems   High voltage battery systems typically exceed the 100V mark. Their heightened power enables faster charging and discharging, making them adept at addressing sudden demand spikes from equipment startups. Moreover, the increased voltage results in smaller conductors.   Advantages of High Voltage Battery Systems   High voltage battery systems represent a relatively recent advancement in home solar battery backups. Their elevated voltage levels facilitate greater energy output, ideal for homes with higher electricity consumption rates. Opting for a high-voltage battery not only enhances efficiency but also conserves energy. With a DC bus voltage ranging between 300 and 500V, inverters face reduced workload, translating to enhanced energy efficiency for residential and commercial power needs. Furthermore, high voltage battery systems tout longer lifespan, higher discharge rates, and enhanced safety features, making them an increasingly favored choice.        Cost Considerations   While high-voltage batteries generally command a higher market price than their low-voltage counterparts due to manufacturing costs and brand premiums, several factors influence lithium battery prices, including type, size, quality, and supplier. Thus, buyers are advised to conduct thorough price comparisons across different suppliers before finalizing a purchase.   Selecting the Optimal Home Solar Battery Backup   In summary, the choice between high voltage and low voltage battery systems hinges on various factors. While inverter brands are expanding their offerings to include more high voltage options, both systems cater to distinct market segments. For competitively priced home solar battery backups, consider reaching out to Bonnen Battery. With our commitment to quality, affordability, and a 5-year warranty backing our products, Bonnen Battery stands as your reliable partner in energy storage solutions.
Welcome European Clients: A Journey Through Bonnen Battery's Lithium Battery Factory
Welcome European Clients: A Journey Through Bonnen Battery's Lithium Battery Factory
  Bonnen Battery, we are happy to extend a warm welcome to our esteemed European clients who have expressed keen interest in our mobility and energy storage lithium batteries. It's an honor to host our clients for a firsthand glimpse into the intricate workings of our lithium battery factory.   From the outset, our mission at Bonnen Battery has been to revolutionize the energy storage industry by delivering cutting-edge lithium battery solutions tailored to meet the evolving needs of our clients worldwide. Our commitment to innovation, quality, and sustainability drives every aspect of our operations.   Upon our clients' arrival, they will be greeted by our team of seasoned professionals who are dedicated to ensuring your visit is both enlightening and inspiring. Our factory tour is designed to provide a comprehensive overview of our production processes, from raw material sourcing to final product assembly.   Throughout the tour, our experts will be on hand to provide detailed insights into the innovative technologies and engineering expertise that underpin our lithium battery solutions. We take pride in our ability to customize batteries to suit diverse applications, whether it's powering electric vehicles or storing renewable energy.   At Bonnen Battery, sustainability is ingrained in everything we do. From optimizing energy efficiency in our production processes to implementing responsible recycling practices, we are committed to minimizing our environmental footprint and contributing to a greener future.    
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