I ask because I've had my phone about a week, and the battery life has been quite poor. It didn't make it through yesterday with minimal usage. When I checked the battery, 48% was used by cell standby. Clearly my signal is not great, and I downloaded an app to check dBm, and it was worse than -100. Thing is I'm on the same carrier as before (AT&T), but my iPhone 6 never drained anywhere close to this quickly. A day like yesterday, I would have easily had over 50% left on my iPhone.