When a ControlLogix Rack Loses Its Memory
A plant engineer once watched a ControlLogix 5561 processor drop its program after a routine power cycle. The culprit was a depleted backup battery. The Allen-Bradley 1756-BATA 3.6 Volts Lithium PLC Battery exists to prevent exactly that scenario. This 1-cell lithium battery keeps memory alive in 1756-L6x controllers and industrial computers when main power disappears. It also serves as a direct substitute for the 1756-BATM model, so you can standardize on one part number across the plant.
Key Parameters That Matter
| Specification | Value |
|---|---|
| Brand / Series | Allen-Bradley / ControlLogix |
| Battery Type | Lithium, 1 cell, 10 g total |
| Rated Voltage | 3.6 Volts DC |
| Nominal Capacity | 1.7 Ah |
| Maximum Current | 19,000 mA |
| Average Life | Approximately 10 years |
| Terminal Connection | Wire leads connector |
| Mounting | Panel with DIN rail lock |
| Ambient Operating Temperature | 0 to 60 degrees Celsius |
| Storage Temperature Range | -60 to +85 degrees Celsius |
| Packaging Dimensions | 2.65 in x 1.34 in x 2.44 in |
| Weight | 2.4 pounds (1.1 kilograms) |
Lithium chemistry gives this cell a lower self-discharge rate than Ni-Cad or NiMH alternatives. That means fewer replacements and less downtime over the service interval. The 1.7 Ah nominal capacity supports extended memory backup without frequent intervention.
Where the 1756-BATA Fits
This battery suits ControlLogix 5561, 5562, 5563, and 5564 devices, plus 1756-L6x controllers and industrial computers. In oil and gas facilities, these racks often sit in remote cabinets where power interruptions are common. A stable backup cell protects program logic, recipe data, and calibration offsets. When you source spares through Oil AutoTech, you get hands-on technical selection help to confirm the right battery for your chassis.
Installation and Handling
The 1756-BATA requires a wire leads connector and mounts on a panel with a DIN rail lock. Use 1-meter Category 3 rated cables for connections. An adapter cable is needed for repeated use of the externally mounted battery.
Handle with care. Do not recharge, open, puncture, or crush the battery. Keep positive and negative terminals from shorting. Avoid high operating temperatures, which could cause an explosion. Store in a well-ventilated area protected against fire, and follow local disposal regulations.
Reliability and Sourcing
With a 10-year average life, the 1756-BATA reduces replacement frequency compared to rechargeable chemistries. The lithium cell holds voltage longer during storage, so spare units stay ready. For plants running continuous processes, that reliability translates directly into fewer unplanned stoppages.
Oil AutoTech supplies fast-dispatch spares for oil, gas, and industrial automation applications. We offer quick worldwide delivery and practical support to match the battery to your ControlLogix hardware. Contact Oil AutoTech today for pricing and availability.
