The whole kit was mounted on a hand truck for portability, and [Glenn] says that the charger/generator only needs to run about 5 minutes before a dead battery has enough juice to crank an engine.

This one differs from those in that most use a brushed DC motor as a cheap generator, while here that function comes from a stepper motor feeding a rectifier pack and thence a DC-to-DC converter.

Discover how to convert an RC nitro engine into a functional generator in this exciting DIY project. Using a 3cc car engine, this build demonstrates how to harness the power of a small-scale nitro ...

How to Make a Magnet Motor Generator 220v Using DC Motor ...