Board Thread:Questions and Answers/@comment-71.221.86.197-20130113200108/@comment-212.159.121.228-20130114140904

You are talking about IC2 machines aren't you? The buildcraft and redpower mods use a different sort of energy. Also there's a redpower "BT batbox" which won't power Industrialcraft machines.

can you try charging a battery and see if that will run machines?