I've been to the Apple Store with concern that my iPad Pro 12.9 has TERRIBLE battery life. I have had and still have many Apple devices, some of which are iPads, but I've always loved the battery life on them. However, I have seen an extremely significant difference in usage time since the first 10-or-so months I've first used it for (avg. around 12-15hrs of heavy usage per full charge) until now (4-6hrs of heavy usage per full charge). My man at my Apple Store said that an "accidental drop, completely shattering my screen, since I'm covered under Apple Care" would get me a brand spanking new replacement device, and I'm seriously considering it. How do your iPad Pro 12.9 battery life durations stack up?