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The Black and Decker 20V Lithium Battery has become a favorite for homeowners and DIY enthusiasts who rely on cordless tools. One of the most common questions people ask is about its lifespan and run time. On a single charge, the battery can power drills, saws, or garden tools long enough to finish most small to medium tasks. Many users report that it holds a charge for months when not in use, making it highly dependable. Compared to older NiCad batteries, it offers longer run time and consistent power output. Typically, the battery lasts for hundreds of charge cycles before showing signs of reduced capacity. For heavy users, this could mean a few years of regular performance. Occasional users may find their battery still running strong even after five years. Proper charging and storage habits also play a big role in extending its life. Avoiding overcharging and keeping it away from extreme heat helps maintain its efficiency. In short, the Black and Decker 20V Lithium Battery delivers durability, reliability, and value that many users continue to trust.