Overview
The ABAT100-S is a dedicated monitoring module designed for lead-acid batteries, providing real-time online monitoring of single-cell voltage, internal resistance, and negative terminal temperature. Powered directly from the monitored battery, it features a UART communication interface with MODBUS-RTU protocol and works in conjunction with the ABAT100-HS collector. The module mounts directly onto the battery surface with simple installation and no power outage required during commissioning. It is ideal for battery health management in data centers, communication base stations, substations, and industrial distribution applications.
Highlight
Direct Battery Power
- No external power supply needed
- 2V module operating current: 10mA
- 6V/12V module operating current: 5mA
- High consistency across modules
- Ultra-low power consumption
High-Precision Monitoring
- 24/7 real-time online monitoring
- Voltage accuracy: ±0.1%
- Internal resistance resolution: 1μΩ
- Temperature accuracy: ±1°C
- Early detection of degraded cells
Robust Protection
- High anti-UHF ripple interference
- Two-level circuit protection
- Reverse connection protection
- Insulation voltage: 2000VAC
- Suitable for harsh environments
Easy Installation
- Tie-down or adhesive mounting
- Detachable wiring design
- No outage during installation
- Dual-color LED indicator
- Lightweight: 90g
Function
| Function | Description |
| Online Monitoring | 24/7 real-time monitoring of voltage, internal resistance, and negative temperature per battery |
| Internal Resistance Test | Automatic periodic measurement controlled by the collector |
| Low Power Design | Manual low-power mode available; current draw as low as 0.5mA |
| Anti-interference Design | Blocks ripple interference from high-power high-frequency UPS |
| Communication Protocol | MODBUS-RTU protocol via UART interface |
| Status Indication | Red/green dual-color LED: green for power, red for alarm |
Specification
| Parameter | Value |
| Operating Environment | Temperature: -10℃～50℃; RH: 5%~95%; Pressure: 80~110kPa |
| Monitoring Capability | One S-module monitors one battery |
| Monitoring Scope | 2V, 6V, 12V batteries, capacity <3000AH |
| Voltage Measurement | Range: 2V/6V/12V; Accuracy: ±0.1% |
| Internal Resistance | Range: 50～65535μΩ; Accuracy: ±2%; Resolution: 1μΩ |
| Temperature Measurement | Range: -5℃～+105℃; Accuracy: ±1℃ |
| Power Supply | Directly from monitored battery; 2V: 10mA (max13mA); 6V/12V: 5mA (max7mA) |
| Protection | Two-level circuit protection, reverse connection protection, opto-isolation |
| Communication | UART interface, MODBUS protocol |
| Insulation Voltage | 2000VAC |
| Mounting | Tie-down or adhesive mounting |
| Weight | 90g |
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FAQ
ABAT100-S is powered directly from the monitored battery, requiring no external supply. The 2V module draws 10mA, and 6V/12V modules draw 5mA during normal operation, with ultra-low power consumption that does not affect battery performance.
ABAT100-S must work with the ABAT100-HS collector. The collector polls data from modules via UART bus and uploads to a monitoring system or touch screen via RS485 (Modbus-RTU). Each collector can manage up to 120 S-modules.
No. The module uses detachable wiring; installation only requires clipping the leads to battery terminals without disconnecting the battery circuit, ensuring uninterrupted system operation.
It supports 2V, 6V, and 12V lead-acid batteries with capacity recommended below 3000AH. Choose the corresponding model (ABAT100-S-02/06/12) based on battery voltage.
The test is automatically controlled by the ABAT100-HS collector, with configurable periodic cycle (default 30 days) and specific time. Manual triggering for individual or all batteries is also available via the host software.
Communication between ABAT100-S and the collector is UART; shielded twisted-pair cable is recommended, with total length not exceeding 10 meters. Actual wiring should consider on-site interference and follow the collector manual.
Summary
The ABAT100-S Single Battery Monitoring Module provides 24/7 online monitoring of voltage, internal resistance, and temperature for lead-acid batteries. Powered directly from the monitored battery with no external supply required, it offers simple installation without system interruption. High-precision measurement (voltage ±0.1%, internal resistance resolution 1μΩ) ensures data reliability, while robust anti-interference design makes it suitable for high-frequency UPS environments. When integrated with the ABAT100-HS collector, it enables per-cell SOC/SOH estimation and failure prediction, allowing maintenance teams to identify degraded cells early, ensure backup power availability, and extend overall battery life. It is the ideal choice for backup power management in data centers, communication base stations, and critical industrial loads.
