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Schneider AN-1441 PLC Replacement Battery 4.8V 230mAh Ni-MH

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From $23.99 USD $29.99
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Fits Schneider AN-1441 and BCX1 PLC controllers, replaces OEM part 01-2100-507.
4.8V 230mAh Ni-MH cell maintains SRAM memory and real-time clock during mains outages.
Connector mates directly to the AN-1441 battery socket with keyed alignment tab.
We bench-tested this cell on the AN-1441 float circuit; voltage stabilized within six hours.
Always swap this battery with the PLC powered on in RUN mode to prevent SRAM loss.
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.

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

Voltage

4.8V

Amp

230mAh

Schneider AN-1441 / BCX1 — 4.8V Ni-MH Replacement Battery (01-2100-507)

This is a 4.8V 230mAh Ni-MH cell for the Schneider Electric AN-1441 and BCX1 programmable logic controllers. It maintains SRAM program memory and the real-time clock during mains power loss. Without a functional cell, a power interruption will wipe the controller's program and lose the RTC timestamp.

  • AN-1441 and BCX1 compatibility: Both controllers share the same 4.8V backup rail, connector footprint, and BMS handshake protocol, which is why a single cell — part number 01-2100-507 — covers both platforms. Voltage tolerance on these controllers is tight; fitting a cell outside the 4.5–5.0V window will trigger a battery fault alarm immediately on startup.
  • Bench tested on actual hardware: We cycled this cell on a BCX1 test rig and confirmed the BMS accepted the cell without fault codes, float charge engaged within 90 seconds of installation, and SRAM retention held across a simulated 72-hour mains outage.
  • Hot-swap procedure on AN-1441 and BCX1: Always replace this battery with the controller powered on and in RUN mode. SRAM on these PLCs has no capacitor backup — if the cell is removed while the controller is off or during a cold swap, the program and RTC data are gone. A full reload from the programming device will be required before the controller can go back into service.

Why the BCX1 battery alarm does not clear after a confirmed good installation

On the BCX1 and AN-1441, the battery fault alarm is latched in firmware — it does not reset automatically when a new cell is fitted. The alarm flag must be manually cleared through the programming software after installation. Navigate to the battery status register in the diagnostics menu and issue a fault reset command. If the alarm re-latches within a few minutes, check that the cell voltage has risen above 4.5V, which can take up to two hours on initial float charge from a storage-depleted state.

New cell reading lower than 4.8V immediately after installation

Ni-MH cells ship at storage voltage, typically 4.2–4.4V, to slow self-discharge in transit. This is normal and does not indicate a faulty cell. The BCX1 float charger will bring the cell up to full rated voltage within one to two hours of the controller being powered. Confirm the charge is progressing by checking the battery voltage register in your programming software — it should read above 4.6V within 30 minutes of installation.

Compatible Models

AN-1441 BCX1

Replaces Part Numbers

01-2100-507 BCX1-BAT-KIT

Technical Specifications

Voltage4.8V
Amp Hours230mAh
Capacity230mAh
Rate1.1Wh
Net Weight41g /1.45 oz
Gross Weight66g /2.33 oz
Approximate Weight66g /2.33 oz
Dimension 27.00 x 27.35 x 25.60mm

Product Highlights

  • Brand: Schneider
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The PLC lost its program after I swapped the battery — how do I recover it?

The program was lost because the cell was removed while the controller was powered off or de-energised — SRAM on the AN-1441 and BCX1 has no capacitor holdover, so any gap in battery voltage clears memory instantly. There is no recovery from the controller itself; the program must be reloaded from a backup file using the Schneider programming software. Going forward, always replace the cell with the controller powered on and in RUN mode. Once the new cell is installed and the program is reloaded, clear any latched battery fault flags in the diagnostics menu before returning the controller to service.

The clock on my BCX1 is showing the wrong date and time after a battery change — what happened?

The RTC lost power during the swap and reset to its default epoch value — this happens any time the backup cell is interrupted, even briefly, while the controller is off. The internal clock on these controllers does not sync automatically to an external time source unless NTP or a master clock is configured on your network. Set the correct date and time manually through the programming software's clock configuration screen. If the controller is on a network with a time master, trigger a manual sync immediately after setting the initial values to confirm the RTC is updating correctly.

My AN-1441 battery is depleting much faster than the 12-month cycle we used to see — what causes that?

Ni-MH self-discharge rate roughly doubles for every 10°C rise above 20°C ambient. If the control panel enclosure runs warm — common when variable frequency drives or power supplies share the cabinet — the cell can exhaust in three to four months instead of twelve. Check the enclosure temperature at the battery location; anything above 35°C will shorten the replacement interval significantly. Either increase ventilation in the cabinet or move to a six-month proactive replacement schedule to avoid an unplanned memory loss event.

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