Charge Fire Orb is cast on the Fire Obelisk, in Taverley Dungeon, to turn an unpowered orb into a fire orb. It is recommended that you take antifire protection, also you will need a dusty key or 70 agility to get to the fire obelisk.
Charge Fire Orb costs 459 coins, 339 coins if a fire supplying staff is wielded.
