Challenge Today, the battery development process for automotive applications is relatively decoupled from the vehicle integration and system design validation phase. Battery module design targets are very much linked to vehicle-level requirements, such as performance, lifetime and cost but are often disregarded at very early design phases. Converging these requirements to more specific battery pack criteria is not straightforward and often based on previous vehicle generation data or cell testing measurements usually performed after prototyping and via artificial charge and discharge patterns Solution To reduce time to market, AVL proposes here a methodology guided by virtual testing techniques to consider vehicle-level validation steps at the very early phase of battery testing. In a first step, AVL utilises a vehicle system simulation supported with real-world test scenarios and high-fidelity battery models. To generate such realistic scenarios, AVL uses an online digital map and weather information to create virtual road and test cycles. Such simulation based real world like charging and discharging cycles can then be used to understand the vehicle-level performance of the battery in a Model-in-the-Loop environment. As a next step, the validation of the actual battery pack on component testbed can be enhanced for vehicle validation tasks by creating a Battery-in-the-Loop configuration. The presentation will focus on the benefits of such an augmented testbed for both battery suppliers and automotive OEMs. Applications and use cases will be shown, based on a modular virtual testing toolchain, which involves simulation platform & models as well as generation of model parameter & test cases. This proposal addresses automotive OEMs as well as suppliers of batteries and its control systems. Frontloading vehicle validation tasks to a Battery-in-the-Loop configuration on component testbed reduces the OEM's need for prototype vehicles, as well as supports studies of new BEV concepts. Automotive OEMs will find solutions to safe vehicle prototype resources by shifting parts of the vehicle level testing towards component testbeds. Battery suppliers will see how vehicle simulation can complement missing vehicle requirements and, hence, improve the application-specific battery validation. Automotive OEMs will find solutions to safe vehicle prototype resources by shifting parts of the vehicle level testing towards component testbeds. Battery suppliers will see how vehicle simulation can complement missing vehicle requirements and, hence, improve the application-specific battery validation.