Safe Travel with Lithium Batteries - IATA

What the official page says

Up to 100 watt-hours (Wh): generally allowed in carry-on baggage. 100-160 Wh: may be allowed with airline approval (e.g., for large cameras or drones). Over 160 Wh: usually not permitted on passenger aircraft. Never place spare batteries or power banks in checked baggage. All airlines follow IATA's global safety recommendations but must also comply with local aviation authorities and national laws.