Theoretically, yes, but I wouldnt try it. A fully charged 9.6v pack is rather higher than 9.6v, so I wouldnt recommend it. Id try to get my hands on a 9v lithium backup battery (7.4v with a built in buckboost or similar for steady 9v.) I have used them in the past, and they rock. Its quite easy to add cells, or rplace them entirely to get more amperage or whatever.