Allen-Bradley 1771-BA Backup Battery

Reliable power backup for PLC-2/20 and PLC-2/30 controllers. The 1771-BA ensures your automation system stays protected during power interruptions.

Key Features

• 17,000 mAh high capacity
• 1.5 volt alkaline battery
• Button top terminals
• Non-rechargeable design
• Industrial temperature range
• Easy installation

Technical Specifications

Brand: Allen-Bradley
Model: 1771-BA
Battery Type: Standard D-cell
Chemistry: Alkaline
Voltage: 1.5 Volts
Capacity: 17,000 mAh
Terminals: Button top
Rechargeable: No
Controllers Supported: PLC-2/20, PLC-2/30
Batteries per Controller: 2 units
Backup at 45°C: 12 months
Backup at 60°C: 6 months
Shelf Life: 5 years minimum
Storage Temp: -20°C to 35°C
Operating Temp: 0°C to 60°C

Installation Guide

Use two batteries per controller. Install with correct polarity. Replace both batteries together. Check connections securely.

Shipping & Warranty

12-month performance warranty. Fast delivery via FedEx, UPS, DHL. Fresh stock guaranteed.

Download Documentation

Get complete technical information:

• Installation guide
• Specification sheet
• Compatibility list
• Replacement guide
• Safety instructions

Download Technical Documentation

Common Questions

How many batteries do I need for my controller?

Each PLC-2/20 or PLC-2/30 controller requires two 1771-BA batteries.

What is the expected battery life?

Approximately 12 months at 45°C or 6 months at 60°C operating temperature.

Are these batteries rechargeable?

No, these are single-use alkaline batteries and cannot be recharged.

What controllers are compatible?

Designed specifically for Allen-Bradley PLC-2/20 and PLC-2/30 controllers.

How should I store spare batteries?

Store in cool, dry place at -20°C to 35°C for maximum shelf life.

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