Features:2.0Ah Lithium-Ion compatible with Meterk tools line: Drill Driver, sander, Rotary tools.Maximum Productivity - Less downtime with no memory and virtually no self-discharge.Longer runtime and improved performance, more efficient.Easy to install and remove.storage - If you don't plan on using the for a month or more, store it in a , dry, cool place away from heat and metal objects.Specifications:Model: LY666-Li-Voltage:Capacity: 2000mAhPackage Size: 11.9*8.3*5.7cmPackage Weight: 250gPackage List: E12758 1 * LI-ION Battery