Why is my battery capacity draining so fast Ios 11.3 - iPhone 7 plus

[Sea Games]

When Apple released 11.3 there is a new feature called Battery health so I updated and checked it, it was at 97% I bought the phone on September 2017 and from then since now it's at 93%, see it drained way quicker.

I do 1080p60fps video editing and gaming and basic stuff
I used to do more heavy stuff before than now so it's kind of weird.
Is there a problem with my battery?

 

[Sea Games]

So what can I do?

 

[Just_Me_D]

Your battery health is still darn good. The device is 4 months from being a year old.

 

[Ledsteplin]

93% is good for an eight month old phone. Be sure when you test the battery life, you do it at 100% charge. And don't worry over it. My 2½ year old 6s Plus is between 68% and 72%.