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How Long Do Lithium Batteries Last? A Real Guide
How long do lithium batteries last is one of those questions where the honest answer is “longer than you’d think, and it depends on how you treat it.” Unlike a lead-acid battery, which tends to give you a fairly narrow, predictable window before it noticeably fades, a quality LiFePO4 (lithium iron phosphate) battery has a much wider realistic range — and where you land in that range comes down to a handful of habits that are easy to get right once you understand them.