When batteries finally die and you’re not near an outlet — and a full-sized gas generator is massive overkill — the Freeplay Weza offers a human-powered energy source. And it’s powerful enough to jump-start cars or power small- to mid-sized electronic devices like cell phones radios, and LED. lighting. Think of it as a back-up to your back-up.
The Weza comes with heavy duty jumper cables and provides power through a cigarette lighter-type power outlet. Your stepping action either powers devices directly or charges an internal maintenance-free 7 Ah lead-acid battery for use later.
Stepping alone provides between 25 and 40 watts depending on how hard you go at it. But if you’re lazy (and near power anyway), you can also charge the internal battery via a provided power adapter fed by standard 110/240 AC or any 12 to 21 volt DC source.
The best part, though is that Freeplay apparently believes in you. The Weza is designed to be user-serviced and even comes with a servicing tool kit. Hell, this looks perfect for natural disasters preparedness. Now you just need a spare $250. Maybe you could cancel your gym membership and spend time on this instead of the StairMaster.