Drone exam · UAS flight performance Hardware A battery reads 100 percent but has lost capacity with age. Which statement is correct? Select one answer A It can be fully charged and still contain less usable energy than when new. B 100 percent always means original capacity. C Age improves energy density. D Cycle history is irrelevant. Check answer Correct answer: A. It can be fully charged and still contain less usable energy than when new. State of charge and state of health are different quantities.