Murari Iyengar
Ansys Employee

Hi, 

You can take a look at the Empiral battery life loss model here. 20.8.1. Empirical Battery Life Model (ansys.com) 
For more information on battery modelling, check out  20.8. Battery Life Models (ansys.com) 
You can also keep an eye on courses.ansys.com as new courses are constantly being created and published.