Hi Giorgios,
The Standalone Battery model requires a financial model for dispatch options that respond to power prices, electricity rates, and or electric load, which are all part of the financial model. It also requires a financial model to account for battery replacement costs.
If you are running the model from MATLAB, you could isolate financial model inputs required by the 'battery' compute module, and set those yourself in the code instead of relying on the inputs from the financial model. You can use SDKtool to explore the compute module inputs:
sam.nrel.gov/software-development-kit-sdk.
Best regards,
Paul.