Compatible with:Ryobi CID1442P,Website:://.toolbattery.net, Ryobi FL1400, Ryobi CBI1442D, Ryobi STPP-1441, Ryobi CDL Series, CDL1441P, CDL1442D, CDL1442P, CDL1442P4, Ryobi CTH Series, CTH1442, CTH1442K2, Ryobi HP Series, HP1441, HP1441M, HP1441MK2, HP1442M, HP1442MK2, HP7200K2, HP7200MK2, HP7200NK2, Ryobi R Series, R10520, R10521, Ryobi RY Series, RY1420, RY62, RY6200, RY6201, RY6202,Technical Details：Item Weight1.1 poundsProduct Dimensions4.3 x 2.9 x 4.3 inchesItem model numberHP1441 batterylife500 times MaxVoltage14.4 voltsWarranty1 yearBattery Cell TypeLithium Ion