Need portable power for camping, emergencies, or off-grid adventures? Converting a lithium battery pack into an outdoor power supply is a cost-effective DIY project. Why Convert. The Outdoor Lithium Ion Battery Power Supply offers a portable, efficient, and durable energy solution for various applications. It integrates multiple outputs—USB, Type-C, AC, and car ports—that handle everything from smartphones to small appliances seamlessly. No fuel needed, no smell, no fumes and noiseless! Safe and convenient, ideal for both home use and outdoor trip. Just take it to your trip and enjoy.