Hi @Tonizpt1221,
Do you experience any unexpected behaviour with the battery in your device? This will always be more trustworthy than what a service menu tells you.
If you don't, I don't see any reason for you to replace the battery now and it's better if you wait until you see a big decrease in battery performance or if you start to experience sudden shutdowns and that the device can't be powered on without connecting it to a charger.
Let me know if that helps! 
