EF651615 EF651620 EF651625 or EF702338 Gas Water Heat Meter 3.6V Primary Battery

3.6V Lithium Primary Battery for Gas Water Heat Meter

Professional-grade 3.6V lithium primary (non-rechargeable) battery designed specifically for gas meters, water meters, and heat meters. Available in four models (EF651615, EF651620, EF651625, EF702338) from trusted brands EVE and FMA. These rectangular lithium batteries provide reliable, long-lasting power for utility metering applications.

Key Features

• Utility Meter Specific: Designed for gas, water, and heat meter applications
• Multiple Models: EF651615, EF651620, EF651625, EF702338 to fit different meters
• Premium Brands: EVE and FMA - trusted manufacturers
• High Voltage: 3.6V lithium thionyl chloride chemistry
• Long Service Life: 10+ years operating life in typical meter applications
• Wide Temperature Range: -40°C to +85°C operating temperature
• Low Self-Discharge: Less than 1% per year at room temperature
• High Energy Density: Maximum power in compact rectangular form

Package Contents

• 1× 3.6V Lithium Primary Battery (model as selected)

Technical Specifications

General Specifications

Common Applications

• Gas Meters: Residential and commercial gas metering
• Water Meters: Smart water meters and AMR systems
• Heat Meters: Thermal energy metering and monitoring
• Utility Meters: Electricity meters and multi-utility meters
• AMR/AMI Systems: Automatic Meter Reading infrastructure
• Remote Monitoring: IoT-enabled utility monitoring devices
• Data Loggers: Long-term environmental and utility data logging
• Industrial Sensors: Low-power industrial monitoring systems

Choosing the Right Model

Choose EF651615 if you need:

• Compact size (65×16×15mm)
• Standard capacity (~1500mAh)
• Space-constrained meter installations
• Lower power consumption meters
• Cost-effective solution

Choose EF651620 if you need:

• Medium capacity (~2000mAh)
• Balanced size and capacity (65×16×20mm)
• Standard gas/water meter applications
• Good balance of runtime and size

Choose EF651625 if you need:

• Higher capacity (~2500mAh)
• Extended runtime (65×16×25mm)
• Meters with higher power consumption
• Longer replacement intervals
• Most cost-effective per mAh

Choose EF702338 if you need:

• Maximum capacity (~5000mAh)
• Longest operating life (70×23×38mm)
• High-power consumption meters
• AMR/AMI systems with frequent transmissions
• Critical applications requiring maximum reliability

Advantages of Lithium Thionyl Chloride Chemistry

• Highest Energy Density: More power in smaller size compared to other primary batteries
• Wide Temperature Range: Operates reliably from -40°C to +85°C
• Stable Voltage: Maintains consistent 3.6V throughout most of discharge cycle
• Ultra-Low Self-Discharge: Less than 1% per year enables 10+ year shelf life
• Long Operating Life: 10-15 years in typical utility meter applications
• High Reliability: Proven technology for critical metering applications

Installation Guidelines

Before Installation:

• Verify battery model matches meter requirements
• Check battery voltage with multimeter (should read 3.6V)
• Ensure meter is powered off or in battery replacement mode
• Have replacement ready before removing old battery

Installation Steps:

• Follow meter manufacturer's battery replacement procedure
• Observe correct polarity (+ and - markings)
• Ensure secure connection to meter terminals
• Verify meter powers on and displays correctly
• Record installation date for maintenance tracking

Disposal of Old Battery:

• Do not dispose of in regular trash
• Take to battery recycling center or hazardous waste facility
• Follow local regulations for lithium battery disposal

Why Choose FMA/EVE Batteries?

FMA and EVE are leading manufacturers of lithium primary batteries for utility metering applications. These batteries are manufactured to strict quality standards, ensuring reliable performance and long service life in demanding utility meter environments. Trusted by meter manufacturers and utility companies worldwide.

Custom Battery Solutions

Need custom dimensions, connectors, or specifications? We offer custom battery solutions for OEM meter manufacturers and large-scale utility deployments. Contact us with your requirements.

Safety Information

⚠️ WARNING - PRIMARY BATTERIES: These are NON-RECHARGEABLE batteries. Do not attempt to recharge.

Storage: Store in cool, dry place away from direct sunlight and heat sources. Keep out of reach of children.

Operation: Do not short-circuit, puncture, crush, incinerate, or disassemble the battery.

Temperature: Operating: -40°C to +85°C, Storage: -40°C to +60°C.

Disposal: Dispose of batteries according to local regulations. Do not incinerate or dispose of in regular trash. Recycle at approved facilities.

Leakage: If battery leaks, avoid contact with skin and eyes. Wash thoroughly if contact occurs.

Professional Use: Installation should be performed by qualified technicians following meter manufacturer guidelines.

Shipping & Transportation Notice

Hazardous Material: This product contains lithium batteries and is classified as dangerous goods for shipping purposes.

Air Transport Restrictions: Due to international air transport regulations, battery shipments may be subject to additional restrictions and longer transit times.

Packaging Compliance: All shipments comply with UN3090 packaging requirements for lithium metal batteries.

Delivery Time: Battery-containing parcels may experience extended delivery times due to stricter customs inspections and carrier handling procedures.

Documentation: Proper hazardous materials documentation accompanies all shipments to ensure compliance with international shipping regulations.