LR44 1.5V Alkaline Button Coin Cell Battery

LR44 1.5V Alkaline Button Coin Cell Battery (Cross-Reference: LR44 / AG13 / A76 / L1154 / 357A) is a primary (non-rechargeable) alkaline manganese dioxide (zn/mno2) miniature cell providing a stable 1.5V DC nominal output and ~110 mAh to 140 mAh capacity. Engineered with a leak-resistant stainless-steel crimp seal and low self-discharge chemistry, it delivers reliable long-shelf-life power for digital vernier calipers, laser pointers, pocket calculators, small LED toys, watches, and medical thermometers.

Key Features:

• Precision 1.5V Nominal Output: Maintains a flat, dependable discharge voltage curve suitable for CMOS memory retention, RF transmitters, and LCD measuring instruments.
• Universal IEC Size & Cross-Compatibility: Matches standard LR44 / AG13 / A76 / L1154 / 357A mechanical dimensions (Ø11.6 mm × 5.4 mm) for drop-in replacement.
• Leak-Resistant Crimp Seal: Nickel-plated stainless-steel can and polypropylene gasket prevent electrolyte leakage inside delicate watches, calipers, and remote controls.
• Extended Shelf Life: Low internal self-discharge preserves energy during multi-year storage at room temperature.
• Mercury-Free Eco-Safe Formulation: Manufactured without added mercury or cadmium for safe everyday consumer and industrial use.

Technical Specifications:

• Standard Designation / Cross-Codes: LR44 / AG13 / A76 / L1154 / 357A
• Chemical System: Alkaline Manganese Dioxide (Zn/MnO2) (Non-Rechargeable Primary Cell)
• Nominal Voltage: 1.5V DC
• Typical Capacity: ~110 mAh to 140 mAh
• Operating Temperature Range: -10°C to +60°C

Mechanical Specifications:

• Can Material: Corrosion-Resistant Nickel-Plated Stainless Steel
• Terminal Layout: Outer Case/Top = Positive (+), Bottom/Inner Face = Negative (-)

Dimensions:

• Diameter: Ø11.6 mm
• Height / Length: 5.4 mm
• Weight: ~1.9 g

Pinout and Wiring:

• Positive Terminal (+): Engraved flat outer case (for coin cells) or raised button cap (for 23A cylindrical cell).
• Negative Terminal (-): Smaller insulated inner circular face (for coin cells) or flat bottom base (for 23A cell).
• Safety Precaution: This is a primary NON-RECHARGEABLE battery—never attempt to recharge it. Keep button/coin cells strictly out of reach of children.

Datasheet Reference:

• IEC / ANSI Standard Reference: LR44 / AG13 / A76 / L1154 / 357A Primary Battery Specification

Commonly Used in:

• RF Key Fobs, Wireless Doorbells, and Remote Controls
• Digital Vernier Calipers, Micrometers, and Thermometers
• Real-Time Clock (RTC) & Microcontroller SRAM Backup
• Watches, Calculators, Laser Pointers, and Medical Devices

Applications:

• Specifically designed for digital vernier calipers, laser pointers, pocket calculators, small LED toys, watches, and medical thermometers.
• Fits directly into standard PCB-mount coin/cylindrical battery holders for DIY electronics and sensor nodes.
• Provides years of low-microamp standby retention or crisp high-pulse RF transmission bursts.

Equivalent Models:

• CR2032 3V Lithium Coin Battery: Larger 20mm × 3.2mm (210mAh) 3V lithium coin cell used on DS1307/DS3231 RTC modules and PC motherboards.
• 9V Non-Rechargeable Zinc Carbon Dry Battery: Standard 6F22 9V snap-terminal rectangular dry battery.

Package Includes:

• 1 × LR44 1.5V Alkaline Button Coin Cell Battery