Allen Bradley 1756-BA1 ControlLogix Battery Backup Module

FAQ

Q1: What is the 1756‑BA1 used for?
It is a battery backup module that helps retain ControlLogix system memory (program and data) and the real‑time clock when main power is removed.

Q2: What type of battery does it contain?
It contains a replaceable lithium battery (non‑rechargeable).

Q3: What voltage does the battery provide?
The internal battery provides approximately 3.6 V DC backup voltage.

Q4: Where is the 1756‑BA1 installed?
It plugs into the designated battery slot on a ControlLogix chassis.

Q5: Does the battery module retain memory without power?
Yes — it provides backup to retain memory and real‑time clock when the DC supply is absent.

Q6: What are the environmental operating limits?
It operates from 0 °C to 60 °C with up to 95 % non‑condensing humidity.

Q7: How big is the 1756‑BA1?
Dimensions are approximately 3.0 × 2.5 × 1.0 in.

Q8: Is the 1756‑BA1 still supported by the manufacturer?
Yes — it remains an active accessory for ControlLogix systems.