https://www.theregister.co.uk/2017/09/11/tesla_boosts_battery_capacity_for_irma/ >Over the weekend Tesla began pushing a software update to certain Model S and Model X vehicles to increase battery capacity, in the hope that extended vehicle range might help customers fleeing Hurricane Irma and successive storms in Florida. >"Due to these exceptional circumstances, and to help you better prepare to evacuate and get to safety, your vehicle has been adjusted at no cost to you to temporarily access the additional battery capacity until September 16th," a message sent to one customer reads.