Drone exam · Maintenance and airworthiness Hardware Safety A lithium battery is swollen but still charges. What is the best response? Select one answer A Continue using it on short flights. B Follow the damaged battery procedure and remove it from normal service. C Puncture it to release pressure. D Store it fully charged. Check answer Correct answer: B. Follow the damaged battery procedure and remove it from normal service. Normal charging does not cancel the significance of swelling.