Overview
The Allen-Bradley 1756-BATM is an externally mounted battery module engineered for ControlLogix controller systems. This backup power module supplies critical voltage to maintain volatile memory and real-time clock functions during AC power loss events. By retaining controller memory and program state, the 1756-BATM prevents data loss and enables safe shutdown sequences in process control, manufacturing, and safety-critical automation systems.
Key Features
- External mounting — mounts directly to control panel or DIN rail without removing the controller
- Replaceable battery cartridge — uses 1756-BATA lithium battery assembly for easy field service
- High-capacity lithium cell — provides extended backup runtime compared to internal battery solutions
- Industrial-rated connector — includes 3.28 ft (1 m) cable with locking connector for secure attachment
- Compact housing — fits efficiently in control cabinets and panel layouts
- Wide operating temperature range — supports demanding industrial environments
Technical Specifications
- Part Number: 1756-BATM (Mfg. Number: 96391474)
- Battery Type: Lithium, non-rechargeable (3.6 VDC nominal)
- Input Rating: 15 mA at 5.1 VDC
- Output Rating: 20 mA at 3.6 VDC
- Battery Cartridge: 1756-BATA (10g lithium, 17 Ah capacity)
- Mounting Method: DIN rail or panel-mounted
- Operating Temperature: 0°C to +60°C (32°F to 140°F)
- Humidity: 5–95% non-condensing
- Dimensions: 114 × 32 × 137 mm
- Weight: Approximately 1.08 kg
- Connection Cable: 3.28 ft (1 m) with locking connector
- Shock Rating: Withstands up to 30G
- Status Indication: LED indicator on controller shows battery condition
Typical Applications
The 1756-BATM is used across industries requiring ControlLogix platform reliability:
- Process manufacturing — ensures safe shutdown and parameter retention in chemical, beverage, and food processing
- Discrete automation — protects program integrity and production state during power anomalies
- Safety-critical systems — maintains safety-integrity levels (SIL) by preserving controller state for graceful recovery
- Redundant control systems — provides extended memory backup for systems requiring high availability
- Remote or mobile installations — protects systems in areas with unstable power grids
Compatibility & Replacements
Compatible With
- Allen-Bradley 1756-L55Mxx ControlLogix controllers
- Allen-Bradley 1756-L61 ControlLogix controllers
- Allen-Bradley 1756-L62 ControlLogix controllers
- Allen-Bradley 1756-L63 ControlLogix controllers
- ControlLogix 5560 series
- RSLogix 5000 / Studio 5000 programming environments
- EtherNet/IP communication networks
- CompactLogix and discrete ControlLogix architectures
Replaces / Drop-In Replacement For
The 1756-BATM is a legacy module officially discontinued by Rockwell Automation on July 18, 2017. No direct replacement has been announced by the manufacturer. This module remains a valid component for existing ControlLogix systems in the field. Used units are sourced from surplus markets for maintenance and repair of legacy installations.
Works With
- 1756-BATA battery cartridge (replacement battery assembly)
- RSLogix 5000 and Studio 5000 controllers and programming software
- EtherNet/IP networks and PROFINET-compatible gateways
- Standard ControlLogix 1756 chassis and backplane systems
- Allen-Bradley FactoryTalk View human-machine interface (HMI) software
