5 Hi-Energy 4.8v 2200mah Ni-MH Battery Packs. These packs came from a RC hobby shop which closed down. The packs have been sitting for awhile and have not been tested since they are still in new packaging. Other packs from the same store have been tested good but there is no guarantees on these batteries. If you have any questions about the batteries, please let me know. If enough people ask, I may test the voltage of them though, it will compromise the original packaging.