Chemical energy: A from of energy which is stored inside substances
Plants, humans and batteries all contain substances that store chemical energy.

Batteries
A battery uses chemical to produce eletricity. The battery turns chemical energy into eletrical energy.There are two types of energy one is rechargeable battery. There are battries that make eletricity until all their chemical are used up.

Which things contain rechargeoble battery :
Toy car
Mobile
Degital camera
A kind of battery that is rechargeoble
I-pod
Mp3
laptop
pamtop
torch (Emergency light)