High-Capacity 18V 21700 Lithium Battery Pack
Premium 21700 lithium cells deliver superior energy density for extended runtime (3Ah/4Ah/5Ah options). Built-in advanced BMS ensures overcharge, over-discharge, and short-circuit protection. Durable industrial-grade casing with shock-resistant design, compatible with electric wrenches, angle grinders, and variable-speed power tools. Ideal for construction, automotive repair, and heavy-duty DIY projects. Direct-from-factory pricing with bulk discounts. Global shipping, strict QC, and hassle-free warranty support. Upgrade your tool performance with unmatched value.