It's Used to Power a Mobile Phone
This page is the CodyCross answer for the clue below from Department Store, Group 507, Puzzle 5 (Patio Furniture).
Question is: It's Used to Power a Mobile Phone
and the answer is: BATTERY
Word Meaning:
BATTERY — (electricity, electronics, countable) A device used to power electric devices, consisting of one or more electrically connected electrochemical cells or (archaically) electrostatic cells.
Definitions from Wiktionary.