Kobalt 24-Volt Max 4.0Ah Lithium-Ion Battery and Charger Set. Features USB-C charging for added convenience. The 4.0Ah battery offers extended runtime for demanding jobs and is compatible with all Kobalt 24V Max cordless tools. Used in good condition with no damage or missing parts noted. A cost-effective way to add or replace batteries in your Kobalt 24V tool collection.