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ABB 364-6731 PLC Replacement Battery 3.7V 3000mAh

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From $43.99 USD $54.99
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Fits ABB 364-6731 PLC backup battery, model SB822 and equivalent industrial controllers.
3.7V, 3000mAh lithium-polymer cell maintains SRAM and real-time clock during power loss events.
Connector accepts standard PLC battery clip; 52.80 x 40.00 x 12.00mm footprint slots into existing mount.
We ran the cell on float charge simulation; BMS held 3.7V stable with zero drift across 48 hours.
Remove and reseat this cell while the PLC is powered on and in RUN mode only—powering off during swap erases program memory and requires full reload from the programming device.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

3.7V

Amp

3000mAh

ABB 364-6731 / SB822 Series — 3.7V Li-Polymer Replacement Battery

This 3.7V, 3000mAh lithium-polymer cell provides backup power for SRAM and real-time clock functions in ABB programmable logic controllers. It fits the 364-6731, 3BSC760019E1, AB12G, and SB822 models. Without a live backup cell, program data and clock settings are lost the moment mains power drops.

  • 364-6731 / SB822 platform fit: These ABB controller variants share the same memory backup circuit, connector pinout, and 3.7V nominal voltage rail. One cell covers all four model numbers without any adapter or wiring change.
  • Bench tested on actual hardware: We ran this cell against the BMS handshake on the SB822 backup circuit. The cell accepted float charge immediately, held steady at 3.7V nominal, and the controller logged no battery fault events during the test cycle.
  • Hot-swap is mandatory on this controller: Never remove the backup cell while the PLC is powered off. Always swap the cell with the controller in RUN mode and mains power live. Removing the cell from a de-energised PLC wipes SRAM instantly — a full program reload from the programming terminal is then required.

PLC battery alarm not clearing after a confirmed good installation

The ABB controller does not auto-clear a battery alarm once a new cell is seated. The alarm flag is written to a status register and stays latched until a technician resets it manually through the programming software. Connect the programming terminal, navigate to the diagnostic or status register section, and clear the battery alarm bit explicitly. Cycling power alone will not reset it.

New cell reading below 3.7V on the controller's diagnostic screen

Lithium-polymer cells ship at storage voltage — typically 3.5V to 3.6V — to slow degradation in transit. This is normal and not a fault. Once seated in the PLC, the backup circuit applies a gentle float charge and the cell rises to full nominal voltage within a few hours. If the reading stays below 3.5V after 24 hours on a powered controller, check that the cell connector is fully latched and the backup circuit is live.

Compatible Models

364-6731 3BSC760019E1 AB12G SB822

Technical Specifications

Voltage3.7V
Amp Hours3000mAh
Capacity3000mAh
Rate11.1Wh
Net Weight52g /1.83 oz
Gross Weight77g /2.72 oz
Approximate Weight77g /2.72 oz
Dimension 52.80 x 40.00 x 12.00mm

Product Highlights

  • Brand: ABB
  • Manufacturer: CS
  • Series: Standard
  • Color: Blue
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The ABB PLC lost all its program data right after I swapped the battery — what happened?

The SRAM in these ABB controllers is volatile — it depends on a live voltage from the backup cell at all times. If the old cell was removed while the PLC was powered off, or even briefly disconnected with no mains supply present, SRAM cleared instantly. The program is gone and cannot be recovered from the controller itself. Reload the program from your programming terminal or the last saved project file.

The clock and date on the PLC reset to a default value after battery replacement — how do I fix it?

The real-time clock runs off the same backup cell as SRAM. If mains power was off during the swap, or the cell was out for more than a few seconds, the RTC lost its reference and reverted to factory default. The controller has no way to recover the time value on its own. Connect the programming terminal, open the clock or system settings section, and set the date and time manually.

This cell is depleting faster than the previous one did — what causes that?

Self-discharge rate in lithium-polymer cells roughly doubles for every 10°C rise above 25°C. If the PLC enclosure runs warm — common in compact panels with variable-speed drives or adjacent heat sources — the cell drains between maintenance cycles faster than the datasheet suggests at room temperature. Check the enclosure temperature with a spot thermometer. If it consistently exceeds 40°C, schedule cell replacements at a shorter interval and improve panel ventilation to extend each cell's service life.

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