Batteries store electrical energy by converting it into chemical energy, which can be converted back into electrical energy when needed.
(chemical energy; can be converted; back; into electrical energy; T:when needed) (Batteries; store; electrical energy) Context(Batteries store,List([0, 15))):(Batteries; store electrical energy by converting; it; into chemical energy)
Batteries store,List([0, 15))
chemical energy Batteries Batteries
can be converted store store electrical energy by converting
back into electrical energy T:when needed
electrical energy
it into chemical energy