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6135-15-218-3861 CR2032 Lithium Coin Battery

6135-15-218-3861 CR2032 Lithium Coin Battery

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CR2032 Lithium Coin Battery


The NSN 6135-15-218-3861 is another variation of the CR2032 lithium battery codified by Italy. Italy also manages 6135-15-213-3450, which is also an Italian-codified CR2032.

Why the difference?

In the Italian military logistics system, these two NSNs distinguish between the packaging or procurement contract rather than the battery itself.

  • 6135-15-213-3450 is often the "General Purpose" stock number for individual batteries or bulk loose cells.

  • 6135-15-218-3861 is typically associated with specific technical kits or equipment assemblies (such as communication repair kits or specific naval electronics modules).

Style: Coin,
Diameter: 20.0mm
Thickness: 3.2mm
Chemistry: Lithium Manganese Dioxide 
Voltage: 3V 
Type: Non-Rechargeable (Primary)
Capacity: 225mAh
Discharge Rate: 200µA
Weight: 0.102 oz (3.1 g)
Shelf Life: 10 years

Manufacturer: Panasonic Energy - CAGE 1TLB5
Panasonic was the first company in the world to develop and commence the mass production of lithium cells. Panasonic is a leader in consumer based primary lithium batteries.

NSN (National Stock Number) (NATO Stock Number): 6135-15-218-3861

SHIPPING RESTRICTIONS: Only GROUND shipment is allowed. Please select appropriate shipping methods on checkout.

NEDA Number: 5004LC
Numeric ID: 2510413
Also known as DL2032, ECR2032, KCR2032, and BR2032

6135152183861 
152183861 
CR2032
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Documents
CR Series Lithium Coin Batteries.pdf CR2032 Battery Dimensions.pdf CR2032 Panasonic Datasheet.pdf

A CR2032 battery is a 3V lithium manganese dioxide coin-shaped cell commonly used to power small, low-drain electronic devices.

Key Product Features

  • Reliable 3V Power: Delivers a stable 3V output with a typical capacity of approximately 210–240 mAh.
  • Extended Shelf Life: High-quality cells maintain power for up to 10 years in proper storage, with a low self-discharge rate of about 1% per year.
  • Wide Temperature Range: Operates effectively in extreme environments, typically ranging from -30°C to +60°C (-22°F to 140°F).
  • Leak-Proof Construction: Innovative sealing technology prevents leakage to protect your expensive electronics.
  • Safety Features: Often available in child-resistant packaging to prevent accidental ingestion.

Common Applications

This versatile battery is a direct replacement for many household devices, including:

  • Security & Entry: Car key fobs, garage door openers, and AirTags.
  • Medical Devices: Blood glucose meters, digital thermometers, and oximeters.
  • Computing: PC motherboard CMOS/BIOS batteries and calculators.
  • Electronics: Watches, LED lights, small toys, and remote controls.

In the military and tactical sectors, the CR2032 battery is a critical power source primarily for small electronic accessories, optical sighting systems, and portable lighting. 

Specific Italian Military Use

While the standard Italian CR2032 is used in many things, this specific "3861" number appears frequently in the technical documentation for:

  1. Beretta ARX-160 Accessories: Used in the electronic sights and target acquisition modules for Italy’s standard infantry rifle.

  2. Leonardo (Finmeccanica) Electronics: Italy’s major defense contractor, Leonardo, uses this NSN for memory backup on internal circuit boards for radar and mission computers.

  3. Iveco LMV (Lince): Found in the dashboard computers and communication interface units of the Italian Army's Light Multirole Vehicle.

Optical & Sighting Systems

The most widespread military use of CR2032 batteries is in reflex and red dot sights used by armed professionals for rapid target acquisition. 

  • Aimpoint Sights: Several professional-grade optics utilize CR2032s, including the ACRO P-2 reflex sight and the Micro T-2. The Aimpoint PRO (Patrol Rifle Optic) also relies on this battery to provide up to 30,000 hours of illumination.
  • Trijicon Optics: The Trijicon SRO (Specialized Reflex Optic) and certain RMR Type 2 reflex sights are powered by a single CR2032.
  • Sig Sauer Electro-Optics: The ROMEO5 Gen II and ROMEO4T-PRO series use CR2032 batteries to power their reticles, often featuring night vision-compatible brightness settings.
  • Holosun Collimators: Many Holosun red dot sights, frequently used in tactical configurations, are designed specifically for this battery type. 

Night Vision & Helmet Accessories

While many primary night vision units use larger batteries (like AA or CR123A), the CR2032 powers several critical peripheral components. 

  • Helmet Mounts & Accessories: Specialized mounts and switches for Night Vision Goggles (NVGs) use these coin cells for low-profile power.
  • Illumination Controls: Some optics featuring "Night Vision" (NV) settings use the CR2032 to maintain ultra-low reticle brightness levels for use with goggles. 

Tactical Lighting & Communication

  • LazerBrite Tactical Lighting System: This modular LED system uses CR2032 batteries to provide visible or infrared (IR) light for signaling and marking in the field.
  • Tracking & Asset Management: Ruggedized tracking tags (similar to civilian AirTags but often integrated into military gear management) utilize CR2032s for long-term location monitoring.
  • Backup Electronics: Digital lasers, small tactical lights, and backup digital sights often use these cells due to their 10-year shelf life and reliability in extreme temperatures.