It runs on both a regular gasoline engine and on a motor using electricity from a battery that never needs to be "plugged in" because the gasoline engine continually charges it.
(It; runs; ) (the gasoline engine; charges; it; T:continually) (a motor; using; electricity; from a battery) (a battery; never needs; to be "plugged in) (a battery; to be; plugged; L:in)
It the gasoline engine a motor a battery a battery
runs charges using never needs to be
it T:continually
electricity from a battery
to be "plugged in
plugged L:in