Replacement 12.0V battery pack designed to restore power and runtime to compatible cordless tools. Precisionfit to the original form factor and electrical specifications for straightforward installation and reliable operation. Key benefits Restores tool performance and runtime by replacing a worn or failed 12.0V battery pack. Directfit compatibility with the listed models and part numbers, eliminating fitment guesswork. Compact, lightweight profile keeps the tool balanced and easy to handle during extended use. Simple installation and removal using the original battery latch and connector interface. Useful spare battery to keep a second tool in service while the primary pack is charging. Important attributes Voltage: 12.0V Compatibility: fits models 245720, 245721, 245820, 245821, 246020, 246021, 246120, 246122, 2470 Replacement part numbers: 4931427105, 4932430064 Replaces battery designations: C12 B, C12 BX, M12, M12 B2 12.0V Function: replacement battery pack for cordless tool applications that use the listed battery form factor Installation and use Install the pack the same way as the original: slide into tool battery bay until it clicks into place. Designed to work with chargers and tool interfaces that accept the listed part numbers and pack designations. No modification required to the tool or charger when replacing the original pack with this compatible unit. Practical use scenarios Jobsite drilling and fastening: a worn pack to maintain steady drilling and driving performance throughout the workday. Home renovation and DIY projects: keep a charged spare on hand for tasks such as installing cabinets, trim, or shelving. Small workshop and maintenance work: provide a ready replacement for routine tool maintenance, minimizing downtime. What to expect A replacement battery pack that matches the 12.0V specification and physical fit of the original packs identified by the listed models and part numbers. Straightforward swapin installation with existing chargers and tool connectors designed for these pack types. Compatibility note Use this replacement pack only with tools and chargers that accept the listed models and part numbers to ensure proper fit and function.