PLC Memory Backup Solution – Saft LS14250 | Bobbin-Type Lithium Series
The Saft LS14250 is the global benchmark for PLC memory retention, RTU data logging, and industrial controller backup power. Engineered in the 1/2AA form factor with a nominal voltage of 3.6 V and capacity of 1200 mAh, this bobbin-type lithium thionyl chloride (Li-SOCl₂) cell delivers ultra-low self-discharge and a 10-year+ shelf life — making it the default choice for engineers who cannot afford data loss in mission-critical automation systems.
Where This Product Is Used
- PLC Memory Backup – Siemens S5/S7, Allen-Bradley MicroLogix, Mitsubishi MELSEC, Omron CJ/CS series retain ladder logic and parameter data during power outages.
- RTU & SCADA Field Devices – Remote terminal units in oil & gas pipelines, water treatment, and substation automation rely on LS14250 for continuous data integrity.
- CNC & Servo Controllers – Fanuc, Siemens SINUMERIK, and Mitsubishi CNC systems use this cell to preserve tool offsets and machining programs.
- Industrial Meters & Sensors – Flow computers, gas analyzers, and smart transmitters use LS14250 for real-time clock (RTC) and non-volatile memory backup.
- Building Automation Systems (BAS) – Fire alarm panels, access control units, and HVAC controllers depend on this cell for configuration retention.
- Medical & Laboratory Equipment – Infusion pumps, patient monitors, and analytical instruments use LS14250 for parameter memory in regulated environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | LS14250 |
| Manufacturer | Saft (France) |
| Chemistry | Lithium Thionyl Chloride (Li-SOCl₂) |
| Form Factor | 1/2AA (14.5 mm × 25.0 mm) |
| Nominal Voltage | 3.6 V |
| Nominal Capacity | 1200 mAh |
| Max Continuous Current | 35 mA |
| Max Pulse Current | 60 mA |
| Self-Discharge Rate | < 1% per year |
| Operating Temperature | −60 °C to +85 °C |
| Storage Temperature | −65 °C to +85 °C |
| Shelf Life | 10 years (at +20 °C) |
| Terminal Type | Axial leads (solder tabs available) |
| Weight | Approx. 8 g |
| IEC Designation | CR14250 equivalent (Li-SOCl₂ chemistry) |
Why Engineers Specify This Model
- Widest Temperature Range – Operates from −60 °C to +85 °C, covering outdoor RTUs in arctic climates and hot foundry environments without performance degradation.
- Ultra-Low Self-Discharge – Less than 1% annual capacity loss ensures reliable backup even after years of standby in rarely-serviced field equipment.
- High Energy Density – 1200 mAh in the compact 1/2AA footprint outperforms alkaline and NiMH alternatives by 3–5×, reducing replacement frequency.
- Stable Voltage Plateau – Flat 3.6 V discharge curve maintains CMOS SRAM and RTC supply within spec throughout the cell’s life.
- Drop-in Compatibility – Standard 1/2AA dimensions fit existing battery holders in thousands of PLC and controller models without mechanical modification.
- Proven Pedigree – Saft has manufactured Li-SOCl₂ cells since 1970; LS14250 is qualified to IEC 60086-4 and UL Listed.
Complete System Bill of Materials
When replacing or specifying the LS14250, engineers typically source the following complementary components:
- 1/2AA battery holder with axial lead contacts (e.g., Keystone 2460, MPD BH1/2AA)
- PLC memory backup module (controller-specific — consult OEM BOM)
- Insulation sleeve or heat-shrink tubing for lead protection
- Anti-static packaging for storage and transport
- Replacement schedule label (recommended: 5-year interval for critical applications)
Compliance & Industry Standards
- IEC 60086-4 – Primary lithium batteries safety standard
- UL Listed – Underwriters Laboratories safety certification
- UN 38.3 – Transportation testing for lithium batteries (air, sea, road)
- RoHS Compliant – Restriction of Hazardous Substances Directive
- CE Marked – European conformity for electrical equipment
- REACH Compliant – EU chemical substance regulation
Quality Assurance & Sourcing
Konmask.com sources Saft LS14250 exclusively from authorized distributors and verified OEM surplus channels. Every batch undergoes:
- Open-circuit voltage (OCV) verification ≥ 3.67 V per cell
- Date code inspection — cells with manufacture date > 5 years are rejected
- Physical integrity check: no leakage, corrosion, or label damage
- Anti-static and moisture-barrier packaging for international shipment
- Traceability documentation available upon request for regulated industries
How to Source This Part
- Confirm your controller model and verify the battery compartment accepts 1/2AA / 14.5 × 25 mm cells at 3.6 V.
- Check quantity requirements — Konmask supplies single units, small lots (5–50 pcs), and bulk orders (100+ pcs) with volume pricing.
- Submit your inquiry via the product page or email support@konmask.com with your PO or project details.
- Receive proforma invoice, confirm payment, and expect dispatch within 1–3 business days.
- Track shipment via provided logistics number; DHL/FedEx express available for urgent orders.
Application-Specific FAQ
Q: Is the LS14250 compatible with Siemens S7-300 PLC memory backup?
A: Yes. The Siemens 6ES7 971-0BA00 backup battery uses the 1/2AA 3.6 V Li-SOCl₂ format. The LS14250 is a direct functional equivalent.
Q: Can I use LS14250 in place of ER14250 or CR14250?
A: LS14250 (Saft), ER14250 (EVE/Tadiran), and similar designations share the same 1/2AA 3.6 V Li-SOCl₂ chemistry and are electrically interchangeable in most applications. Always verify terminal configuration (axial vs. radial) before substitution.
Q: What is the recommended replacement interval for PLC memory backup?
A: Saft recommends proactive replacement every 5–7 years in continuously powered systems, or immediately upon low-battery alarm from the controller.
Q: Is the LS14250 rechargeable?
A: No. The LS14250 is a primary (non-rechargeable) lithium cell. Attempting to recharge it is a safety hazard and will void all certifications.
Q: Can this battery be shipped internationally by air?
A: Yes, subject to UN 38.3 and IATA Packing Instruction PI 970. Konmask ships with compliant documentation and packaging for air freight.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
