Hi, The battery on my 17 month old iphone 6s+ seems to be dying quite quickly. I have to charge it constantly as it dips way faster than it used to. I could use it for an hour and 30 percent is gone. I tested it with some apps such as Battery Life and the battery wear level shows 45.5-55% of total capacity. One app shows 1500/2750 maH under battery health. I checked battery usage and most of the battery is being used for browsing(19%) and instagram(13%). The rest of the apps are at about 3-4% so no significant app drain. I have Applecare and wonder if these apps are accurate enough to set up a genius appointment to replace the battery for free. I think the Applecare stated anything under 80% wear level under warranty warrants a free battery replacement. Is this accurate? Thanks.