Ok so my iPhone is not new now. 4 year old 6S running V13.1.2. New battery fitted 18 months ago. We were visiting a new city last week. Using the maps app to find my way around, but a 10 minute walk was using about 30% of the battery charge. Is that meant to be normal? I was contemplating getting the new 11, but if that’s also going to happen with the new phone, I may look elsewhere. Anyone having similar problems?