Every cell phone needs a battery to operate, whether it is a NiMH, NiCad, Lithium Ion, or Lithium Polymer. This photo shows a USB travel charger with a lithium ion battery. Lithium ion batteries are the most common form of cell phone battery.
Cordless drill kits like this yellow one come with a strong carrying case and often include a variety of drill bits, screw driver bits and a charger. Some kits may include extra batteries and other accessories.