Battery health

Your phone and battery is fine. 2% in five months is actually great. The only time you need to think about having the battery replaced is when it drops to 80% or lower. Remember battery health will decline the more times the battery is charged. Batteries are consumable parts and decline over time naturally. All batteries eventually lose their ability to hold a full charge.

Hi, your battery health is fine , try to charge the battery between 30% and 80% , also try to not let it drain to 0% too often as this can damage the battery cells. If you are going to store your iPhone for a period of time try keep the battery at around 50%.

Two percent from perfect.

Don't worry about it for a few years.