A very big, very wide wheel, in fact. The Mega-Wheelie houses a 24V LiFePO4 battery pack ... considering their past 3000 W unicycle’s only limitation was “personal courage” and featured ...

On a unicycle, however, there’s no chain and the pedals are permanently fixed to the wheel’s axle, meaning that there is (usually) no freewheel and no gearing. [johnybondo] wanted to get some ...

Now, an electric unicycle ... a battery capacity of 3,108 Wh is available to the F22, and with a 20 A charger, you can be back on the streets or trails in up to three hours. All that power is ...

(Robert Martin/) Here I’m not talking about “show wheelies,” in which the rider yanks upward on the bars while opening the ...

The battery-powered Ego works indoors and eliminates a gas engine’s noise and hassles. It’s as strong as our gas-powered picks in power output, but it can’t match their run time, and its ...

Switching to battery powered tools, like the EGO Power+ line ... The speed lever is now a wheel in the middle of the handle. It's much easier to access and almost impossible to change accidentally ...

What Is an Oxygen Concentrator? Portable oxygen concentrators are battery-operated devices that provide supplemental oxygen to people who “require greater oxygen concentrations than the levels ...

This is because the active components in the planet's atmosphere include 95.32 percent carbon dioxide, 0.13 percent oxygen, and 0.08 percent carbon monoxide, which the battery can use for power.

Is your phone, tablet, or laptop typically in the battery red zone before the day's end? These portable chargers and power banks give you the most boost when you're out of juice. I’m a Mobile ...