Saltwater-powered energy is a jaw-dropping concept, and the execution looks genuinely clever. At just 1.1 kg with IPX6 waterproofing, 25dB silent operation, and no lithium batteries, this thing is built for real off-grid scenarios. The fuel plates store for years and activate instantly, which solves the "dead power bank" problem beautifully.

Zero-emission chemical reaction, no flammable materials, and airplane-safe. This checks every sustainability and safety box you could hope for. The saltwater fuel approach sidesteps the environmental baggage of lithium batteries entirely, and it's safe enough for kids and elderly users to operate.

With an average pledge around HK$1,200 (roughly $155 USD), this sits in a reasonable range for a novel off-grid power solution. Early bird backers locked in up to 45% off, making this a solid deal for what could be a genuine game-changer in portable power. A single 300g fuel set delivers 500Wh, enough to charge a phone around 25 times.