Product Description
The Omron CS1W-BAT01 is a reliable, compact, 3.6V, 2Ah lithium battery designed for Omron CS series PLCs, providing approximately five years of memory backup with short circuit protection and an operating temperature range of -20C to +60C.
Is Your Device Showing These Signs?
The Omron CS1W-BAT01 battery commonly exhibits issues related to voltage degradation, leading to PLC memory loss and program corruption. Battery depletion causes CPU faults, preventing proper PLC operation and resulting in communication errors within the control system. Corrosion on battery terminals is a frequent problem, disrupting electrical conductivity and necessitating terminal cleaning or battery replacement to restore PLC functionality and prevent data loss. Replacement is required every 5 years.
Technical specifications
The Omron CS1W-BAT01 is a 3.6V, 2Ah lithium battery for Omron CS series PLCs, offering 5-year memory backup, short circuit protection, and a -20C to +60C operating range.
Our Repair Process for the
CS1W-BAT01
Our repair process for Omron CS1W-BAT01 battery issues begins with a comprehensive diagnostic assessment to confirm voltage degradation, CPU faults, and communication errors. We then proceed with immediate battery replacement, utilizing only manufacturer-approved batteries to guarantee compatibility and optimal performance. Terminal cleaning is performed to remove any corrosion, ensuring proper electrical conductivity. Following battery replacement and terminal maintenance, a complete system test is conducted to verify PLC functionality and eliminate data loss. This process restores the PLC to full operational status, preventing future issues related to battery failure, and is required every 5 years.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















