This is the 7.2V 1100mAh NiMH Stick Battery Pack for use with the AquaCraft Mini Thunder Round Nose Hydroplane RTR (AQUB16**). FEATURES: Red mini connector INCLUDES: One 7.2V 1100mAh NiMH Stick Battery Pack REQUIRES: Installation in the boat SPECS: Length: 85mm (3.3") Width: 35mm (1.4") Height: 18mm (0.71") cnh 8/11/09 ir/jxs