Storage Gameplan; Surge protector for battery tender

[Vibert]

So the Viper is all cleaned, covered, and stored. Full tank of gas with stabilizer. Tires at 40 psi to prevent flat spots. Parked in unheated attached garage on a thick plastic tarp to prevent underbelly moisture from concrete floor. I won't be starting or driving until April. Midwest winter. Anything I'm forgetting?

Question: car will be plugged into a battery tender in hibernation mode. I have a whole house surge protector and the tender will be plugged into a 1050 joule rated single outlet surge protector that itself is plugged into a garage outlet. Is that enough protection? (Note: I have a whole house generator and we lose power if a bird flys by the house too close. )