Customizing electric truck battery packs is a critical step toward growing fleet efficiency. When a battery pack is customized for a particular vehicle type and for how it will be used, enormous gains are made in both energy efficiency and performance outcomes. Such customization possibilities at our facilities mean adjustments may be made to capacity, voltage, and thermal management systems of individual battery packs. The battery packs optimal for the fleet’s requirements are made. Such an approach not only boosts operational efficiency but also reduces the battery’s stress, lifespan and thus total cost of ownership and environmental damage.