What is the Spanish translation for two doors down?

Answer 1

You can either go to the place where you purchased your phone or you can look up the battery information and order online. It would be a lot faster to go to your local store but if there's no rush then online is fine.

Answer 2

If referring to adjacent apartments, "dos mas puertas hacia allá" (pointing), referring to neighboring houses, "dos mas casas hacia allá" (pointing).