This ER34615 (D) battery from EVE has a voltage of 3.6 V, a capacity of 19,000 mAh and is made up of Li-SOCl2 (lithium-thionyl chloride).
Batteries with this composition offer a high energy density and a very low self-discharge rate. They also function reliably in extreme temperatures from -60°C to 85°C. Thanks to these properties, Li-SOCl2 batteries are ideal for devices with low energy consumption over a long period of time, such as data loggers, alarm systems, measuring instruments and backup systems.
Please note: this battery is not rechargeable.