Lithium-ion battery pack compatible with SV20V Series. Features LED battery level indicator. Features: Lithium-ion battery pack compatible with SV20V Series Features LED battery level indicator.Package includes: Model No. - Description CP20VBP2 - Power Tool Battery 20V 2Ah Lithium-ion for CP20V Series (x1) CP20VBP4 - Power Tool Battery 20V 4Ah Lithium-ion for CP20V Series (x1) Specifications: Guarantee:1 Year Model Number: BK24