Lithium-ion batteries in these containers last about six years. Picking the right solar battery size helps store more solar energy and keeps power on. Unlike traditional lead-acid batteries, LiFePO4 batteries make use of lithium-ion technology, making them lightweight, compact. . Lithium batteries power everything from phones to solar systems. Cover types, factors affecting lifespan, and tips to make them last. If you're into solar, this matters. First. . This document will serve as guideline for the safe handling, use, and storage of lithium batteries in the United States Antarctic Program (USAP).