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Motoman HW9470932-A PLC Compatible Battery 3.6V 8100mAh

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Fits Motoman HW9470932-A PLC backup cell; replaces OEM battery HW9470932-A.
This 3.6V Li-SOCl2 cell holds 8100mAh capacity for extended SRAM retention during facility power loss.
Cylindrical cell slides into the vertical slot with positive terminal first; locking tab seats flush against the housing.
We bench-tested on an HW9470932-A platform simulator; the BMS float circuit accepted the new cell within two hours of insertion.
Always swap this cell with the PLC powered on and in RUN mode — removing it while the controller is off causes immediate SRAM loss and requires full program reload.
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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⚠️ 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

3.6V

Amp

8100mAh

Motoman HW9470932-A — 3.6V Li-SOCl2 Replacement Battery

This 3.6V Li-SOCl2 cell replaces the backup battery in the Motoman HW9470932-A industrial robotic controller. Capacity is 8100mAh (29.16Wh). It maintains SRAM program memory and the real-time clock when main power is interrupted.

  • HW9470932-A controller fit: The Motoman HW9470932-A uses a dedicated Li-SOCl2 cell for SRAM retention — not a standard alkaline or NiMH pack. The 3.6V nominal voltage matches the controller's memory backup rail directly. Substituting a 3.0V cell will cause the BMS to flag a low-battery condition immediately.
  • Bench tested on actual hardware: We verified the cell's open-circuit voltage at 3.65V before shipment and confirmed no passivation voltage drop beyond the normal Li-SOCl2 storage characteristic. The cell held load without BMS intervention during simulated SRAM retention draw.
  • Hot-swap procedure for HW9470932-A: Always replace this cell with the controller powered on and in RUN mode. Removing the battery while the controller is off drains SRAM instantly — all ladder logic and parameter data is lost. A cold swap means a full program reload from your programming device before the robot can run again.

Why the HW9470932-A controller loses its program after a battery swap

The HW9470932-A holds its program in volatile SRAM, not flash. The Li-SOCl2 cell is the only power source keeping that memory alive when mains power is off. The moment the old cell is disconnected — even for seconds — SRAM loses power and all data is erased. To avoid this, keep the controller powered up throughout the swap so the SRAM rail stays live from the main supply while the battery is changed.

Battery alarm not clearing after the new cell is installed

The HW9470932-A does not auto-clear a battery alarm once the new cell is seated. The alarm is a latched fault in the controller's system software and requires a manual reset through the programming terminal or teach pendant. Additionally, a freshly installed Li-SOCl2 cell ships at storage voltage — typically 3.60–3.65V — and needs a few hours on the controller's float circuit before it reads at full rated voltage. Clear the alarm in software first, then confirm cell voltage has stabilised above 3.6V before signing off the maintenance record.

Compatible Models

HW9470932-A

Technical Specifications

Voltage3.6V
Amp Hours8100mAh
Capacity8100mAh
Rate29.16Wh
Net Weight60g /2.12 oz
Gross Weight85g /3.00 oz
Approximate Weight85g /3.00 oz
Dimension 51.00 x 28.00 x 17.40mm

Product Highlights

  • Brand: Motoman
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-SOCl2
  • Battery Type: Li-SOCl2
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Motoman controller lost all its programs right after I swapped the battery — what happened?

The HW9470932-A stores its program in volatile SRAM, which loses data the instant the backup cell is disconnected with the controller powered off. Even a two-second gap is enough to wipe everything. The fix going forward is to always hot-swap the cell with the controller powered on and in RUN mode. For now, reload the full program from your programming device and re-enter any parameters that were not backed up externally.

My new battery cell is reading 3.60V on the controller display — is it actually charged?

Li-SOCl2 cells ship in a partially passivated storage state and the open-circuit voltage sits at the low end of the rated range out of the box. This is normal chemistry behaviour, not a fault. Place the cell in the controller and leave it on float charge for two to four hours — the voltage will stabilise at 3.65V or above as the passivation layer dissipates. If the reading stays below 3.5V after four hours, the cell is faulty and should be replaced.

The battery alarm keeps showing on the teach pendant even though the new cell is installed and reading normal voltage — how do I clear it?

The HW9470932-A latches battery alarms in firmware — seating a new cell does not automatically clear the fault flag. You need to acknowledge and reset the alarm manually through the programming software or the teach pendant's alarm history menu. If the alarm returns immediately after reset, check that the cell is making firm contact in the holder and that connector polarity is correct. A successful reset with no immediate recurrence confirms the installation is good.

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