iPhone 7 battery draining fast

Sburlys ~ 69% capacity is not healthy and is to be expected in a 5½ year-old battery. Have the battery replaced and the battery draining will likely be resolved:

iPhone Battery & Power Repair

About genuine iPhone batteries

Repair Provider Verification

(Articles found by searching Apple's Knowledge Base.)

õ¿õ¬

Sburlys ~ Does your iPhone 7 still have its original 5½ year-old battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health

õ¿õ¬

iPhone 7

Check -> iPhone 7 Repair Program for "No Service" Issues

iPhone 7 Repair Program for "No Service" Issues - Apple Support

See -> The last update killed my battery!

The last update killed my battery! - Apple Community