Dimaag's mobile battery charger has four-wheel drive and four-wheel steering. It has a nearly 300-kilowatt-hour battery. The MWCS can output between 1 and 6 megawatts of power. Heavy machinery like ...

At all the big Maker Faires, the Power Racing Series makes an appearance, turning old Power Wheels into race cars that whip around the track at dozens of miles an hour. [Charles] is somewhat famous in ...

my child has a Power Wheels car with a 6 volt battery that is recharged with a standard plug in wire with a proprietary connector. To recharge the battery, you pop off the seat, disconnect the battery ...