Energy That Grows With You
Meet Fox — the modular home energy storage system where battery units nest inside each other like matryoshka dolls. Start small, expand as your needs grow. Each unit features durable cactus-inspired solid-state batteries and our smart 'Fox' algorithm that learns your household's energy patterns.
Unbox the sleek pebble-sized core unit that fits in your palm. Then watch your eyes widen as you peel back layer after layer — each shell revealing a larger battery inside, like a futuristic energy doll — until you've unfolded from a pocket backup into a whole-home power system that you just charged by doing 50 bicep curls.
Modules nest inside each other like matryoshka dolls. Start with our pocket-sized core, then expand shell by shell as your energy needs grow.
Inspired by desert resilience, our solid-state batteries store more power safely and last longer than anything else on the market.
Our algorithm learns your household's energy patterns and intelligently routes power between modules for optimal efficiency.
Our accessory dumbbell charger lets you generate emergency electricity through exercise. Power your home, one curl at a time.
No wall mounting required. Perfect for urban dwellers who want portable, scalable power without permanent installation.
Reduce your carbon footprint with smart energy storage. Use solar, grid, or kinetic power — your choice, optimized automatically.