Can you help in ascertaining if the dell laptop battery with part number CN-04YRJH-PAS00-86R-O0JD-A05 is authentic or not?

Some tips for brand new Original Dell Inspiron 15-5570 battery

Please read the instructions carefully before using the brand new replacement Dell Inspiron 15-5570 battery.
Don't let your Dell Inspiron 15-5570 laptop battery come in contact with liquid. Liquid can get into the laptop's and battery's circuits, leading to corrosion.
Don't allow the Original Dell Inspiron 15-5570 battery to touch metal objects. If metal objects, such as jewelry, stay in prolonged contact with the battery contact points, the Dell Inspiron 15-5570 battery could become very hot.
Don't disassemble, crush, puncture, shred, or otherwise attempt to change the form of the Original Dell Inspiron 15-5570 battery.
Do avoid dropping the Dell Inspiron 15-5570 battery or laptop. Dropping these items, especially on a hard surface, can potentially cause damage.
If the replacement Dell Inspiron 15-5570 battery can not work fine, please check twice to confirm that the battery is defective or not, and contact our customer service representative ASAP, let us know the Detailed Problem, we will do our best to serve you.

From：https://www.dellbatterie.com/dell-inspiron-15-5570.html

If it is, it's about three years old - - so hopefully it came with a stiff discount.  You will need to verify originality with the seller.

you can go to the dell power manager and select Primarly AC use, and it wont harm your laptop