Batteries (Commodity) ER34615

The ER34615 is a 3.6-volt, 19-ampere-hour D-size primary lithium thionyl chloride (Li-SOCl₂) battery designed for long-term, low-drain backup power applications in fire alarm system memory retention, security system backup power, and emergency notification devices. This non-rechargeable battery combines exceptional shelf life (10 years at room temperature) with ultra-low self-discharge (≤1% annually) and an extremely wide operating temperature range (-55°C to +85°C), enabling reliable performance in harsh environmental conditions and storage scenarios. The button-top terminal design facilitates standard battery connections in alarm system backup circuits, while its consistent 150 mA maximum discharge current supports extended operational life in battery-backed systems.

Key Features

• 3.6V 19Ah D-size lithium battery (Li-SOCl₂ chemistry)
• Primary (non-rechargeable) battery for long-term backup power
• 10-year shelf life with ≤1% annual self-discharge
• Wide operating temperature range: -55°C to +85°C
• Maximum discharge current: 150 mA (supporting low-drain applications)
• Button-top terminal for standard alarm system connections
• Ideal for 3-20 year service life applications
• Suitable for fire alarm memory backup and emergency lighting

Technical Specifications

• Nominal Voltage: 3.6 VDC
• Capacity: 19,000 mAh (19 Ah)
• Chemistry: Lithium Thionyl Chloride (Li-SOCl₂)
• Size Classification: D-cell
• Dimensions: Diameter 33.6 mm, Height 61.9 mm
• Weight: 105 grams
• Maximum Continuous Discharge Current: 150 mA
• Self-Discharge Rate: Less than 1% per year at 20°C
• Operating Temperature: -55°C to +85°C
• Shelf Life: 10 years at room temperature (20°C)
• Terminal Type: Button top

Certifications

• Primary lithium battery certified for UPS and alarm system backup
• Compliant with battery shipping and storage regulations