Batteries; battery packs for mobile devices, namely, mobile phones, smartphones, handheld computers, tablets, and portable media players; carrying cases specially adapted for batteries; cases for mobile devices featuring rechargeable batteries; batteries for mobile devices, namely, external battery packs with integrated docking for mobile telephones, tablets, computers, and portable media players; rechargeable batteries integrated into a protective case or housing with an electrical connector for use with mobile electronic devices, namely, mobile phones, digital audio and video players, handheld computers, personal digital assistants, electronic organizers, electronic notepads, and cameras; carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, cell phones, smartphones, tablets, computers, and portable media players