for using setool lite there is no need for special batteries. Just connect the DCU-60 cable to your PC and start the setoollite. It will automatically do everything for you. There is no necessity for acquirng rest files. It comes packed with those. The misc section is for flashing acoustic drivers, display drivers, and camera drivers and other items to upload to the fone. It will be in zip format. It will contain the full path of the fone where one wants it to go. add the zip file in misc section and press flash. If you you want to flash the main files and fs files, add those in the add section and press flash. After flashing main and fs, you need to flash custpack. All these things are available in the download area of this forum. You may otherwise get it from se-nse forums also. If you want to apply patches(.vkp files) select them from misc section and press write script.