Description
Allen-Bradley 1771-BA Backup Battery for PLC Systems
The Allen-Bradley 1771-BA battery keeps your PLC running during power loss. This reliable D-cell battery protects your important data and program memory. It is made for PLC-2/20 and PLC-2/30 controllers.
Technical Specifications
Brand: Allen-Bradley
Model: 1771-BA
Type: Standard D-cell Battery
Chemistry: Alkaline
Voltage: 1.5V
Capacity: 17,000 mAh
Terminals: Button Top
Rechargeable: No
Backup Time: 6 months at 60°C, 12 months at 45°C
Quantity Needed: 2 batteries per controller
Compatible With: PLC-2/20, PLC-2/30 controllers
How It Works
The 1771-BA battery provides backup power to your PLC controller. When main power fails, the battery takes over. This keeps the program memory and data safe. Two batteries are used for each controller for better reliability.
Application Notes
Use the 1771-BA battery in Allen-Bradley PLC-2/20 and PLC-2/30 systems. The battery life depends on temperature. In cooler environments (45°C), batteries last about 12 months. In warmer places (60°C), replace them every 6 months.
Warranty & Shipping
We offer a 12-month warranty on this product.
We ship worldwide using FedEx, UPS, and DHL.
Frequently Asked Questions
- Q: How often should I replace the 1771-BA batteries?
A: Replace every 6-12 months depending on your operating temperature. - Q: Can I use rechargeable batteries instead?
A: No, the 1771-BA is specifically designed as a non-rechargeable alkaline battery for this application. - Q: What happens if I don’t replace the batteries?
A: Your PLC may lose its program memory during a power outage. - Q: Can I use just one battery instead of two?
A: No, always use two batteries as specified for proper backup protection. - Q: Are these batteries universal for all PLC systems?
A: No, they are specifically designed for PLC-2/20 and PLC-2/30 controllers.
Compare With Other Products
The 1771-BA battery provides backup power for PLC-2 controllers, while other 1771 modules like the 1771-IH Input Module or 1771-ILK Analog Module handle different functions in the control system.
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