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Seiko  |  SKU: MS920E-FL27E

Rechargeable Coin Cell Battery Seiko MS920SE-FL27E, 3v, 11mah

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Regular price $8.95 CAD

Seiko MS920SE-FL27E Rechargeable Coin Cell Battery – 3V 11mAh

Compact and efficient 3V rechargeable lithium manganese silicon (LiMnSi) coin cell designed for RTC and SRAM memory backup systems. Manufactured by Seiko Instruments for long-term stability in embedded electronics and low-power applications.

11mAh Capacity 3V Output Rechargeable Coin Cell RTC / SRAM Backup

Technical Specifications

ModelMS920SE-FL27E
SeriesMS
Battery ChemistryLithium Manganese Silicon (LiMnSi)
Voltage3V
Capacity11mAh
RechargeableYes
Width9.5mm
Height2mm
Operating Temp-20°C to +60°C
OrientationHorizontal
TerminationScrew
Weight470mg
PackagingTray

Key Benefits

  • Reliable Backup Power: Ideal for RTC and SRAM memory backup applications.
  • Rechargeable Design: Reduces waste and extends operational life.
  • Ultra-Compact Form Factor: Slim 9.5mm × 2mm profile for space-constrained electronics.
  • Wide Operating Temperature: Stable performance from −20°C to +60°C.
  • Precision Engineering: Manufactured by Seiko Instruments for dependable electronic performance.

Typical Applications

  • RTC (Real-Time Clock) Backup
  • SRAM Memory Retention
  • Embedded Electronic Systems
  • Low-Power Industrial Electronics
  • Specialized Control Boards

Compatible Battery Series

MS920 MS Series MS920SE

Designed primarily for electronic modules requiring rechargeable RTC backup cells.

Common Replacement References

MS920SE-FL27E MS920SE MS920

Warranty & Returns

  • 30-Day Return Policy
  • 1-Year Replacement Warranty

Always verify your battery model and termination style before ordering to ensure compatibility.

Battery Cross-Reference Table

Manufacturer Part Number Type Voltage Notes
Seiko Instruments MS920SE-FL27E Rechargeable Coin Cell 3V Original reference model
Seiko Instruments MS920SE Rechargeable Coin Cell 3V Same series battery
Seiko Instruments MS920 Rechargeable Coin Cell 3V Generic MS920 format

Reliable Backup Power for Precision Electronics

The Seiko MS920SE-FL27E rechargeable coin cell battery provides dependable memory-backup power for sensitive electronics and embedded systems. Its compact size, rechargeable design, and stable 3V output make it a trusted choice for engineers and manufacturers worldwide.

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🔋 What’s mAh All About?

mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨

Before ordering please read

Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.

How to Look after your new lithium battery!!

See how to look after your battery if its lithium Lithium Care

Delivery and Shipping

See our shipping policy and details at this link Shipping Details

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Technical Specifications

Seiko MS920E-FL27E – 3V 11mAh Rechargeable Coin Cell Battery
Battery Details
Battery Chemistry Lithium Manganese Silicon (LiMnSi)
Rechargeable Yes
Voltage 3V
Capacity 11mAh
Termination Style SMD / SMT
Orientation Horizontal
Width 9.5mm
Height 2mm
Minimum Operating Temperature -20°C
Maximum Operating Temperature +60°C
Typical Applications
Applications RTC Backup Systems, SRAM Backup Power, Embedded Electronics, Low Power Devices
Designed for compact electronic devices requiring reliable backup power in RTC memory circuits and embedded electronics.
Latest Update: 6 March 2026

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