iPhone 15 Pro Max battery draining quickly after activating Apple Intelligence

No one has ever had maximum capacity decrease because of anything that uses the battery. Maximum capacity decreases all on its own, based on the number of charge cycles. So I guess indirectly if you use more energy the max capacity will decrease, at a rate of about 1% for every 50 charge cycles on an iPhone 15. When you download Apple Intelligence it will use more energy to build its database, but that should only be for a day or two. When you actually USE Apple Intelligence it will use significant energy, but unless you are using it continuously you won’t notice the difference.