A high-capacity primary lithium-thionyl chloride battery in D-cell format by Sunmoon (ER34615), tailored for long-lasting, low-current applications such as utility meters, remote sensors, alarms, and backup systems. It delivers consistent performance even in extreme temperatures.
Features
Nominal Voltage: 3.6 V
Capacity: ~19,000 mAh (19 Ah)
Energy Density: > 620 Wh/kg, among the highest for primary cells
Long Shelf Life: 8–10 years with <1% annual self-discharge
Temperature Range: –55 °C to +85 °C
Cylindrical “bobbin” internal design for stable long-term discharge
