The Allen-Bradley 1756-BA1 is a lithium battery assembly for ControlLogix and FlexLogix systems. It provides a rated output of 3 VDC with a capacity of 1800 mAh and operates within a temperature range of 0°C to +60°C (32°F to 140°F). The unit is used for maintaining controller memory functions and general system support.
This battery is manufactured in the USA and is suitable for use within ControlLogix series hardware, including systems with a 7-slot configuration. Relevant electrical specifications include a maximum power dissipation of 4.5 W, backplane current requirements of 10 A at 5 VDC, and 2.8 A at 24 VDC. The enclosure type is open.
The product is shipped from Xiamen, China. Its estimated size is 4.5 * 4 * 1.5 cm, with a weight of 0.04 kg. It is classified under tariff code 8537101190 and is compatible with replacement identifiers such as 1756BA1 and 1756-BA1/A.
Compatible Controllers
1756-L55Mxx controller
1756-L61, -L62, or -L63 controller
(You can install only one battery module per controller)
Is a 1756-BA1 battery connected to the controller?
The term ControlLogix® Battery Module describes the class of battery components used in ControlLogix controllers to maintain memory and system data during power loss. The Allen-Bradley 1756-BA1 is one specific model within this category. It functions as the designated battery assembly for both ControlLogix and FlexLogix platforms, providing the required 3 VDC lithium power source used for memory backup and controller retention.
ControlLogix and FlexLogix systems rely on onboard memory for configuration and operational data, making stable backup power essential for installation reliability. Battery modules such as the 1756-BA1 support non-volatile retention, reduce downtime risk, and simplify maintenance routines. Their compatibility across multiple Logix platforms ensures that users can maintain uniform spare-parts inventories while meeting the operational requirements of distributed control systems.
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