ระบบตรวจสอบแบตเตอรี่ BMS

Battery Monitoring System (BMS)

A Battery Monitoring System (BMS) is a smart solution that continuously measures battery voltage, temperature, internal resistance, state of charge (SOC), and state of health (SOH) in real time. By detecting weak or failing batteries early, a BMS helps prevent downtime, reduce maintenance costs, and extend the lifespan of UPS and data center backup systems. In Thailand, businesses rely on BMS solutions to keep mission-critical operations running, and BT Connect is a trusted company offering certified systems, professional installation, and after-sales support.

What Is a Battery Monitoring System (BMS)?

A Battery Monitoring System (BMS) is an intelligent solution that continuously tracks the voltage, current, temperature, internal resistance, State of Charge (SOC), and State of Health (SOH) of individual batteries. By identifying weak or failing cells early, a BMS ensures that UPS and data center backup systems operate reliably without interruption. Unlike traditional battery checks, a modern BMS provides real-time monitoring, automatic alarms, and historical data analysis, helping organizations improve both efficiency and reliability.

วิธีเลือก BMS ที่เหมาะสม

Why Do UPS and Data Centers Need a Battery Monitoring System?

UPS and data centers often operate with large VRLA battery banks, where the failure of even one unit can compromise the entire system. A BCN Battery Monitoring System from BT Connect prevents this risk by offering 24/7 real-time data collection, remote alarm notifications, and integration with management platforms. This proactive monitoring reduces the risk of downtime, lowers maintenance costs by identifying faulty batteries individually, and guarantees long-term reliability for mission-critical facilities such as hospitals, telecom stations, and industrial plants.

How Does a Battery Monitoring System Work?

A BMS uses smart sensors attached to each battery to measure voltage, impedance, and temperature. Data is transferred to a gateway device and then to a monitoring dashboard or software platform via RS485, Modbus TCP/IP, SNMP, or 4G. Operators can monitor battery health in real time and receive alerts via email, SMS, or integrated software. BT Connects BCN-BMS2000, BMS9000, and BMS-Gate solutions also support dual battery strings, web access, and historical recording, providing full visibility across hundreds of batteries.

Key Benefits of Battery Monitoring Systems

 Early Detection of Weak Batteries identify failing units before they cause system failures

 Real-Time 24/7 Monitoring continuous visibility into voltage, temperature, resistance, SOC, and SOH

 Reduced Maintenance Costs replace only faulty cells instead of entire strings

 Extended Battery Lifespan optimize charging and usage cycles

 Increased Power Reliability ensure UPS and data centers remain fully protected

 Scalable Solutions from small telecom base stations to large industrial data centers

battery monitoring system ใช้งานยังไง
battery monitoring system ใช้งานยังไง

Where to Buy Battery Monitoring Systems (BMS) in Thailand?

BT Connect is the seller of BCN Battery Monitoring Systems in Thailand. Our product lineup includes:

 BCN-BMS2000: for telecom, small to medium UPS systems

 BCN-BMS9000: for large UPS and multi-site data centers

 BCN-BMS-Gate: for flexible integration with up to 420 units

 BCN-BAT61 / BAT52 Sensors: for real-time cell-level monitoring (2V, 6V, 12V)


Our solutions are trusted by data centers, hospitals, telecom providers, factories, and critical infrastructure projects. BT Connect offers not only genuine products but also design, installation, integration, and preventive maintenance services backed by certified engineers.

Battery Monitoring System
What is a battery monitoring system?
It is a system used to measure voltage, temperature, internal resistance, and the health status of each battery cell in real-time, helping prevent damage caused by battery degradation.
How does a battery monitoring system work?
Sensors are connected to each battery cell and send data to a central dashboard or software. The system will trigger alerts if any abnormality is detected.
Is it necessary to install a battery monitoring system?
Yes, especially for mid-to-large UPS systems or critical environments like data centers, ICUs, vital machinery. A BMS reduces risk and long-term costs by detecting weak batteries early.
How is a battery monitoring system different from basic voltage measurement?
Standard voltage testers cannot detect internal resistance or degradation trends in real-time. BMS provides continuous monitoring and automatic alerts when thresholds are breached.
What types of batteries are compatible with a battery monitoring system?
  • Most systems support VRLA batteries (12V or 2V) used in UPS and backup power systems.
  • Some models also support lithium batteries (Li-ion, LFP), using specialized lithium BMS.
What's the difference between wired and wireless BMS?
  • Wired BMS: More stable and cost-effective, ideal for permanent installations.
  • Wireless BMS: Easier to install, suitable for systems with scattered or stacked batteries.
How much does a battery monitoring system cost?
  • It depends on the number of batteries, connection types, and software features.
  • Prices typically range from tens of thousands to hundreds of thousands of THB per system, depending on scale.
Does a battery monitoring system require maintenance?
Minimal maintenance is required. The system continuously monitors battery data and can be configured to send alerts automatically.
Can a battery monitoring system be integrated with any UPS brand?
Yes, if the BMS supports standard protocols like RS485, Modbus RTU, or TCP/IP. It can work with all major UPS brands without modifying the core system.
Does a battery monitoring system affect battery lifespan?
Indirectly, yes. It helps identify and isolate deteriorating batteries early, preventing them from affecting others or causing UPS failure.
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