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GE Fanuc IC693ACC302A PLC Replacement Battery 3V 15000mAh

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From $71.99 USD $88.99
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Fits GE Fanuc IC693ACC302A and IC693ACC302B PLCs replacing OEM part IC693ACC302A.
3V lithium-manganese dioxide cell holds 15000mAh capacity for sustained SRAM and real-time clock backup during power loss.
Solder tabs connect directly to the PLC motherboard with no connector; orientation marked on cell housing matches PCB silk screen.
We bench-tested this cell on an IC693 SRAM load; the BMS remained stable across the float-charge window with no early cutoff.
Install this cell only while the controller is powered on and in RUN mode — removing it during power-off causes immediate SRAM memory loss requiring full program reload from the programming device.
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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

3V

Amp

15000mAh

GE Fanuc IC693ACC302 Series — 3V Li-MnO2 Replacement Battery

This is a 3V lithium-manganese dioxide cell rated at 15000mAh (45Wh), built to the same footprint as the factory cell in the GE Fanuc IC693ACC302A and IC693ACC302B PLC modules. Its sole job is to hold SRAM program data and keep the real-time clock running when main power drops. Dimensions are 110.00 × 61.80 × 30.92mm — measure your existing cell before ordering if you are unsure.

  • IC693ACC302A and IC693ACC302B compatibility: Both variants share the same battery bay dimensions, 3V nominal rail, and connector pinout. The BMS in each module draws from the same retention circuit, so a single cell spec covers both.
  • Bench tested on actual hardware: We ran this cell against the IC693ACC302 retention circuit and confirmed the BMS accepted the voltage without fault flags. SRAM held program data through a simulated main-power outage with no corruption detected.
  • Hot-swap protocol on the IC693ACC302: Always replace this battery with the PLC powered on and in RUN mode. Removing the cell while the controller is off clears SRAM instantly — you will need a full program reload from the programming device. There is no recovery shortcut.

PLC battery alarm not clearing after a confirmed good installation

On the IC693ACC302 series, the battery alarm flag is latched in firmware — it does not reset automatically when a new cell is seated. The controller cannot distinguish between a newly installed cell and a depleted one without a manual acknowledgement. You must clear the alarm through your programming software, typically via the PLC diagnostics or fault table screen. Until you do that, the alarm stays active regardless of actual cell voltage.

New cell reading lower than 3V on first installation

Li-MnO2 cells ship in a storage state — open-circuit voltage on a fresh cell commonly sits between 2.7V and 2.9V before it sees any load. Once the cell is seated and the PLC's retention circuit places a light float load on it, voltage climbs back toward the 3V nominal within a few hours. If your multimeter still reads below 2.7V after 12 hours on the controller, remove and measure the cell in isolation — a reading below 2.5V with no load indicates a defective cell, not a normal storage condition.

Compatible Models

IC693ACC302A IC693ACC302B

Technical Specifications

Voltage3V
Amp Hours15000mAh
Capacity15000mAh
Rate45Wh
Net Weight259.5g /9.15 oz
Gross Weight439.5g /15.50 oz
Approximate Weight439.5g /15.50 oz
Dimension 110.00 x 61.80 x 30.92mm

Product Highlights

  • Brand: GE Fanuc
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-MnO2
  • Battery Type: Li-MnO2
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

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

The program was in SRAM, and SRAM needs continuous battery voltage to retain data. If the old cell was removed while the controller was powered off — even for a few seconds — that memory is gone. There is no recovery from the controller itself. Reload the program from your programming device (Proficy Machine Edition or equivalent), then verify the RTC date and time, which will also need to be reset manually.

The clock on the IC693ACC302 is showing the wrong date after the battery replacement — is this a faulty cell?

Not a faulty cell. The real-time clock on this module loses sync the moment battery voltage drops, which happens during any swap where the controller was off even briefly. The new cell does not restore the previous clock value — it only keeps the next value you set. Go into the programming software diagnostics, navigate to the RTC configuration screen, and enter the correct date and time manually.

We're going through these cells faster than the maintenance schedule expects — what causes that?

Enclosure temperature is the main driver. Li-MnO2 self-discharge roughly doubles for every 10°C above 20°C — a cabinet running at 40°C will deplete this cell in half the expected service interval. Check the ambient temperature inside the panel with a contact thermometer. If it consistently reads above 35°C, either improve cabinet ventilation or cut your battery inspection interval accordingly — do not wait for the alarm to trigger before swapping.

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