I got a battery replacement for $30 (that’s a temporary price which Apple provided because of the PR flack they were getting for slowing down phones with poorer

I got a battery replacement for $30 (that’s a temporary price which Apple provided because of the PR flack they were getting for slowing down phones with poorer batteries). Unfortunately, it’s clear it wasn’t a new battery, or maybe the replacement wasn’t done correctly, but the battery life isn’t great and I can no longer get a battery health reading from the settings>battery section.