The battery is brand new. When I first got it few days ago, I had it charged to 100%. Today I charged it full again and after a full charge, I noticed the battery gauge dropping rather quickly when at 100%. I have the battery plugged into my Nintendo switch. Not sure if it’s normal to see 20% drop from 100% within 3 hours of use? If I need to drain the battery, how far should I go down in % in hopes to calibrate the cells?
Thank you.