The ER17505 is a high-performance, non-rechargeable 3.6 Volt primary lithium battery in A size, designed for long-lasting and dependable power in industrial and specialty electronic applications. Built with lithium thionyl chloride (Li-SOCl2) chemistry, this battery offers stable voltage, low self-discharge, and reliable operation across a wide temperature range. Its button top design makes it well suited for equipment requiring dependable backup or continuous low-current power.

Commonly used in utility metering, alarms, sensors, memory backup systems, security devices, and industrial electronics, the ER17505 battery is valued for its high energy density, long shelf life, and strong performance in harsh environments. Its compact A-size format makes it an excellent choice for applications where maintenance-free, long-term primary power is essential.