The decision would also depend on the driving profile and the age of the vehicle.
Before that, however, I would use a battery tester (MWB), a starter generator tester (STG), and a multimeter to directly check the battery and ensure there is no excessive voltage drop.
Your vehicle doesn't have a control unit with address 61 (battery management).
I would recharge the battery, clear any error codes, and check how the voltage behaves. Depending on the usage profile, it wouldn't be unusual for the battery to start losing performance after 7 years.
Alternatively, disconnect the battery and use the refresh function with a modern charger. That often helps, and it costs almost nothing (if such a charger is available), it's done quickly, and of course, it protects the environment.