Halting a lithium battery fire requires specific knowledge and safety equipment, as traditional firefighting methods may not be effective and could even exacerbate the situation. Immediately evacuate the area and call emergency services for assistance. If it’s safe and you’re trained, using a Class D fire extinguisher or one designed specifically for lithium battery fires is recommended, as these can effectively smother the fire without causing adverse reactions. Importantly, water should never be used on lithium battery fires due to the risk of a violent reaction.