Exide Mileage MLN55 (ISS) battery is a battery with 45AH and 12V and its a new launched battery by Exide Mileage Series under ISS 

Exide Mileage MLN55 (ISS) is development for critical demand of battery for Smart Mild Hybrid petrol Vechiles (SHVS) under tropical climate , Exide has developed Generation - 2 EFB technology, Exide Mileage MLN55 (ISS) (under thin Pole)   is operating as per Indian climatic Conditions, Road Conditions, and driving patterns. All New ISS vehicles using Converso and Mileage Series. These batteries are not easily available in Indian market right now, but, the alternative batteries are available like 45L (thick pole) and as per Battery Boss recommendation and don't use Exide MTRED45L/AMARON 55B24LS Model. 

Exide Mileage MLN55 (ISS) is mostly used in Petrol variant of Maruti Ertiga SHVS , Maruti Ciaz SHVS , Renault tribber, Nissan Magnite etc.

EXIDE MILEAGE ML N55 (ISS) is the replacement of Exide CONSERVO N55 ISS, The Only difference between both the models is the WARRANTY.