Yes, but inverter power and starting surge must be checked carefully. One small AC may use a 3–5kW system, while two AC units may require an 8–11kW inverter or larger depending on the model.
Battery size depends on backup time. A simple estimate is: battery kWh = load kW × hours ÷ DOD ÷ system efficiency. For example, 2kW for 4 hours usually needs around 9–14kWh depending on assumptions.