DFUN has 3 production lines: Battery Monitoring System Solution, Energy Meter, and Smart Lithium-ion Battery. They are well designed, high quality, and flexible applications to meet the different application requirements.

DFUN Tech provides solutions for different fields, such as data center, telecom, power utility, industry etc. We have one-stop solution services, including full automation, multi-level warning, and online remote monitoring.

Professional Manufacturer -- DFUN TECH

Established in April 2013, DFUN (ZHUHAI) CO., LTD. is a national high-tech enterprise focusing  on Battery Monitoring System , Battery remote online capacity testing solution and  Smart lithium-ion backup power solution . DFUN has 5 branches in the domestic market and agents in more than 50 countries, who provide solutions for hardware & software services to customers worldwide. Our products have been widely used in Industrial and commercial energy storage systems, Data Centers, Telecoms, Metro, substations, the petrochemical industry, etc. Key customers including Eaton, Statron, APC, Delta, Riello, MTN, NTT, Viettel, Turkcell, True IDC, Telkom Indonesia and so on. As an international company, DFUN has a professional technical support team that can provide 24-hour online service to customers.​​​​​​​​​​​​​​
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South Korea Data Center Fire Warning: VRLA Batteries + BMS Remain the Safest Power Backup Choice
On the evening of September 26, 2025, a fire broke out at the National Information Resources Service in Yuseong-gu, Daejeon, South Korea. Fire departments are conducting firefighting operations.
2025.09.28
South Korea data center fire.jpg
Dfun at FIEE Brazil 2025 Shaping the Future of Battery Monitoring & Energy Management
As a forward-thinking battery monitoring system manufacturer, Dfun is constantly engaging with the global energy community to drive innovation. Our participation in FIEE Brazil 2025, held from September 9th to 12th in São Paulo, was an incredible opportunity to connect, learn, and showcase our lates
2025.09.16
FIEE 展后视频-封面.jpg
Ripple Current & Ripple Voltage — The Hidden Killers of Batteries, And How DFUN PBMS9000 Protects Your Power System
In the field of battery management systems (BMS), one of the most overlooked risks to lead-acid and Ni-Cd batteries is ripple current and ripple voltage. Though often invisible, these electrical disturbances act like silent killers, reducing battery lifespan and threatening the reliability of critic
2025.09.04
Pipple effects.png
DFUN BMS: Leading Battery Monitoring System Manufacturer to Showcase Innovations at Global Events
As a premier battery monitoring system manufacturer, DFUN BMS is excited to announce our participation in three major international trade shows this fall. These events present excellent opportunities to witness our cutting-edge battery monitoring systems firsthand and learn why DFUN stands out among
2025.08.26
3个展会宣传图.png
South Korea Data Center Fire Warning: VRLA Batteries + BMS Remain the Safest Power Backup Choice
On the evening of September 26, 2025, a fire broke out at the National Information Resources Service in Yuseong-gu, Daejeon, South Korea. Fire departments are conducting firefighting operations.
2025.09.28
South Korea data center fire.jpg
Ripple Current & Ripple Voltage — The Hidden Killers of Batteries, And How DFUN PBMS9000 Protects Your Power System
In the field of battery management systems (BMS), one of the most overlooked risks to lead-acid and Ni-Cd batteries is ripple current and ripple voltage. Though often invisible, these electrical disturbances act like silent killers, reducing battery lifespan and threatening the reliability of critic
2025.09.04
Pipple effects.png
Battery Monitoring: The Cornerstone of Power Security Across Industries
In modern society, a stable power supply is paramount. As critical equipment for power storage and emergency backup, the performance status of batteries directly impacts the normal operation of numerous industries. DFUN, as a professional BMS (Battery Management System) manufacturer, deeply understa
2025.08.13
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Precision Meets Reliability: Inside DFUN’s Revolutionary Battery Capacity & Performance Validation System
Dfun's Battery Capacity & Performance Validation System isn't just another testing rig; it's an industry-defining innovation built for absolute reliability.At its core lies military-grade accuracy: proprietary dynamic load simulation algorithms achieve an unprecedented error margin of ≤0.01%. Every
2025.06.30
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Empowering Czech Metro Safety with DFUN Battery Monitoring System
As urban transportation systems continue to modernize, ensuring the reliability of emergency power supply has become a critical safety requirement. In a recent deployment, DFUN proudly delivered a comprehensive Battery Monitoring System (BMS) solution to the Prague Metro system in the Czech Republic
2025.07.21
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DFUN BMS: Powering Indonesian Data Centers with Robust Energy
Project OverviewThe Indonesian data center project aims to build a highly efficient, stable, and secure facility for data storage and processing. To ensure uninterrupted power supply, the project utilizes 9,454 units of 12V VRLA Hoppecke batteries. DFUN’s Battery Management System (BMS), renowned fo
2025.04.08
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Nabiax Data Center Battery Monitoring System Project Reference
In this case study, we highlight the deployment of DFUN’s Battery Monitoring System at the Nabiax Data Center in Spain. Our cutting-edge solution is currently monitoring over 1,700 units of 12V backup batteries, providing Nabiax data center with the tools needed to optimize battery performance and r
2024.11.12
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Case Study | Battery Monitoring System for New Energy Battery
PBAT 81 is designed to monitor individual battery voltage, internal temperature (negative pole), and impedance (ohmic value) in new energy batteries. With an emphasis on safety and reliability, this advanced BMS ensures seamless operation and protection for your batteries. Not only does the PBAT
2023.11.20
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Dfun at FIEE Brazil 2025 Shaping the Future of Battery Monitoring & Energy Management
As a forward-thinking battery monitoring system manufacturer, Dfun is constantly engaging with the global energy community to drive innovation. Our participation in FIEE Brazil 2025, held from September 9th to 12th in São Paulo, was an incredible opportunity to connect, learn, and showcase our lates
2025.09.16
FIEE 展后视频-封面.jpg
DFUN BMS: Leading Battery Monitoring System Manufacturer to Showcase Innovations at Global Events
As a premier battery monitoring system manufacturer, DFUN BMS is excited to announce our participation in three major international trade shows this fall. These events present excellent opportunities to witness our cutting-edge battery monitoring systems firsthand and learn why DFUN stands out among
2025.08.26
3个展会宣传图.png
DFUN Showroom Video: Discover Cutting-Edge Battery Monitoring & Energy Management Solutions
DFUN is a high-tech B2B company specializing in Battery Monitoring Systems (BMS), Energy Meters, Battery Remote Capacity Testers, and Smart Lithium-Ion Batteries. With over 50 product patents, DFUN delivers efficient and reliable energy management solutions for industries such as data centers, telec
2025.08.19
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DFUN Establishes Thailand Subsidiary To Strengthen Southeast Asian Presence
We were absolutely thrilled to announce the grand opening of DFUN Thailand Branch on July 26, a significant milestone that marked our enhanced commitment to the dynamic Southeast Asian market! As a globally recognized leader in smart power safety solutions, DFUN has long been at the forefront of i
2025.08.01
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