The Backpack Hydrogen Fuel Cell Powerpack is an AI-driven, dual-fuel portable power system designed for off-grid operations and defense missions. Powered by a 1.2 kW fuel cell stack and a 48V buffer battery, it features an interchangeable storage system supporting either a 9.3 L (350 bar) compressed gas cylinder or a 10 L cryogenic liquid hydrogen tank. Integrated Edge-AI continually predicts fuel consumption and optimizes power distribution based on connected loads. Delivering silent, zero-emission electricity with field-swappable tanks, this multi-fuel powerpack provides extended, reliable energy for tactical communications, UAV charging, and emergency response without carbon emissions.