Ultralife

A global leader in the design and production of military, medical, and commercial backup electronics, Ultralife brings over two decades of expertise in lithium battery development. Their proficiency in meeting military-grade standards enables them to produce high-capacity, exceptionally durable cells that rank among the most reliable in the industry.

While primarily focused on specialized applications, this manufacturer also offers a select range of consumer batteries, including their renowned 10-year 9V lithium battery, ideal for smoke detectors and similar devices.