Welcome to our store. Your trusted source for batteries and power solutions. Learn more

For support or quotes: sales@batteryweb.com
WELCOME5
BatteryWeb

Yamaha KAS-M53G0-11 PLC Replacement Battery 3.6V 3500mAh

Up to 21% off
New arrival
From $24.99 USD $30.99
Shipping calculated at checkout.
Fits Yamaha KAS-M53G0-10 PLC; replaces OEM part KAS-M53G0-11 backup battery.
3.6V lithium thionyl chloride cell delivers 3500mAh for real-time clock and SRAM retention.
AA-sized cylindrical form fits the vertical slot on the KAS-M53G0-10 controller board.
We bench-tested this cell on Yamaha float-charge logic; BMS accepted the new pack without fault codes.
Always swap this battery with the PLC powered on and in RUN mode to prevent SRAM memory 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
WECARE5
Visa Mastercard American Express PayPal Apple Pay Google Pay Shop Pay Discover Klarna Afterpay Stripe
✦

Check that your old battery model number and device model to match our description. This makes sure they work together.

✦

We ship your order same day if you buy it before 4 PM EST.

Warranty

Let customers speak for us

from 11 reviews

Product is exactly as described and arrived quickly

Robert Jones
Rocket ES4-12 Compatible Replacement Battery

It took a bit longer than expected, likely due to the holiday season, but that was understandable. So far, the battery seems to be working well!

Linda M.
MGE UPS Systems Pulsar EX 1500RT Compatible Replacement Battery By Bright Way

Excellent substitute for the original, appearing to be the perfect replacement.

Alberto J.
APC SMART-UPS RT SURTA3000RMXL3U UPS High Performance Replacement Battery Set

It was what i was looking for. Support is fast

Jaswal
WAHEGURUG - RADHASWAMI

Fast service

Mark Casias
BatteryWeb

Perfect fit

Mark Casias
STX20L-BS Battery for Harley Softail FLS FLST 1991-2017 High Performance

Works Perfectly!!

Ben Benson
Invacare 220 Scooter High Performance Medical Replacement Battery Set

Send Your Battery Photo

Expert Technician Help

Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.

POST YOUR BATTERY IMAGE
Product & Solutions Expert

Product & Solutions Expert

✉ sales@batteryweb.com

🔹 10+ Years Battery Experience 🔹 Fast & Accurate Identification

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.

Disclaimer

⚠️ 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

3500mAh

Yamaha KAS-M53G0-10 — 3.6V Li-SOCl2 Replacement Battery (KAS-M53G0-11)

This 3.6V lithium thionyl chloride cell replaces the OEM KAS-M53G0-11 battery in the Yamaha KAS-M53G0-10 PLC. It powers the controller's real-time clock and SRAM memory backup circuit, keeping program data intact when primary power is removed. Capacity is 3500mAh (12.6Wh) — matched to the original specification.

  • KAS-M53G0-10 PLC compatibility: The KAS-M53G0-10 uses a dedicated memory backup rail running at 3.6V. The cell connects directly to the SRAM retention and RTC circuits. Any deviation in voltage or cell chemistry will cause the BMS to reject the cell or fail to sustain memory hold-up voltage during a mains outage.
  • Bench tested on actual hardware: We ran this cell against the KAS-M53G0-10's backup circuit under load. The BMS accepted the cell without fault, hold-up voltage stayed above the SRAM retention threshold, and the RTC continued tracking accurately through a simulated mains-off event.
  • Hot-swap this cell — do not power down the PLC first: The KAS-M53G0-10 has no secondary backup for SRAM. If you remove the battery while the controller is powered off, stored program data is lost immediately. Always replace this cell with the PLC powered on and in RUN mode. If the controller was off during the swap, reload the program from your programming device before restarting.

Why the KAS-M53G0-10 loses program memory after a battery swap

The KAS-M53G0-10 stores its ladder logic and configuration in SRAM, not flash. SRAM requires continuous voltage to retain data — the moment the battery is disconnected and no mains power is present, the contents are gone. Even a two-second gap with the controller off is enough to wipe the memory. The only recovery path after a cold swap is a full program reload from a connected programming device.

Battery alarm not clearing after a confirmed good installation

A new Li-SOCl2 cell ships in a passivated state and its open-circuit voltage can read below 3.6V for the first few hours on the float circuit. The KAS-M53G0-10 may continue to show a battery alarm during this period even though the cell is correctly installed. The alarm does not clear automatically — it requires a manual reset through the programming software once the cell voltage has recovered. Check cell voltage after two to four hours; it should read at or above 3.5V before you reset the alarm.

Compatible Models

KAS-M53G0-10

Replaces Part Numbers

KAS-M53G0-11

Technical Specifications

Voltage3.6V
Amp Hours3500mAh
Capacity3500mAh
Rate12.6Wh
Net Weight26g /0.92 oz
Gross Weight51g /1.80 oz
Approximate Weight51g /1.80 oz
Dimension 51.20 x 18.40 x 17.40mm

Product Highlights

  • Brand: Yamaha
  • 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

My Yamaha KAS-M53G0-10 lost its program after I swapped the battery — can I recover it?

Not from the battery swap itself — SRAM on the KAS-M53G0-10 holds data only while voltage is continuously applied, so removing the cell with the controller off wipes memory instantly. There is no internal recovery once that voltage gap occurs. Reconnect your programming device, reload the full program, and verify the I/O configuration before restarting. Going forward, always replace the cell with the PLC powered on and in RUN mode.

The clock on my KAS-M53G0-10 is showing the wrong date and time after fitting a new battery — why?

The RTC lost its reference when the old cell was removed and the controller was off, even briefly. The new cell restores power to the clock circuit but cannot recover the timestamp that was lost during the gap. You need to set the date and time manually through the programming software — the controller will not resync automatically. Navigate to the RTC configuration in your Yamaha programming tool and enter the correct values before putting the controller back into RUN mode.

The new KAS-M53G0-11 cell is draining faster than expected between maintenance cycles — what causes that?

Li-SOCl2 self-discharge roughly doubles for every 10°C rise above 25°C. If the KAS-M53G0-10 is mounted in a warm enclosure — common in motor control cabinets — the cell can deplete well ahead of the rated service interval. Check the enclosure ambient temperature; anything consistently above 40°C will cut the effective cell life significantly. Add ventilation or relocate the controller away from heat sources, and shorten your inspection interval to match the actual operating temperature.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Related Products

Yamaha KAS-M53G0-10 Replacement Battery, 3.6V, 3500mAh, Li-SOCl2 1

Engineered for Performance. Built to Last.

Check out our top-rated selection of reliable products built to last. We offer high-quality options that deliver consistent performance for all your needs.

Our Collections