RIDGID 18V Lithium-Ion (2) 4.0 Ah Battery Starter Kit with Charger and BagRIDGID 18V Lithium Ion Battery Kit Power up with the RIDGID 18V Lithium Ion Battery Kit, including two 4. 0 Ah batteries and charger with a lifetime service agreement. These batteries provide 4X the runtime and superior performance even in extreme temperatures, ensuring your tools are charged and ready for any task. Compatible with all RIDGID 18V tools, this kit is a reliable power solution for professionals and DIY enthusiasts alike. Key Features: