PowerSmart 7.2V, 3000mAh, Ni-MH, Replacement for RYOBI HP61K, HP721, HP721K, RY721, RY721K2, HP722, Power Tools Battery, Compatible Part Numbers: 1311145, 1400668
This ITEM is compatible with the following models:RYOBI HP61K, HP721, HP721K, RY721, RY721K2