The Skil SB 18B LI 18-Volt Lithium-Ion Battery works with an array of tools made by Skil. This 18-Volt Battery is compatible with Lithium-Ion and Ni-Cd tools. An energy start certified charger, the Skil Lithium-Ion Battery is 50 percent lighter and lasts four times longer than traditional Ni-Cd batteries. The charge indicators show you the charge status and make it easy to know when this 18-Volt Battery is low or ready for use. This Skil SB18B-LI 18-Volt Lithium-Ion Battery helps you utilize your cordless tools to their maximum efficiency so you can get the job done faster and easier. Skil SB18B-LI 18-Volt Lithium-Ion Battery: * 50 percent lighter and 4 times stronger than traditional Ni-Cd batteries * Part of the Skil SelectSystem * Energy Star Certified Charger * For Skil Models: 2810, 2888, 2895, 2897, 2898, 4570, 5850, 5995, 7305 and 9350