The Uniross Lithium Cylindrical Rechargeable RCR123A Battery (Pack of 2) is engineered for high energy density, offering significant power storage in a compact form. With a long Charging Cycles, these batteries are ideal for long-term use, providing reliable performance over time. Their low self-discharge rate ensures that they hold their charge longer when not in use, making them perfect for applications where infrequent use is common.