I can’t really remember if that was an issue for my S4. I’m sure it happened like once or twice but I don’t really drop my phone and I’m sure the majority of people nowadays have a case that will pretty much prohibit the battery cover from opening. What I DO remember is keeping a spare battery in my wallet and anytime my phone was low (I’m terminally addicted and 3 hours of screen on time was the best I got back then) just popping that bad boy in. Was a great feature and took a lot of stress off of me in the days when battery life was terrible. I hope they can revive a feature like that in a modern premium phone.