My S6 is 26 months old so out of warranty. Battery life is getting progressively worse - from about 35% life left it drops away really quickly. We're heading overseas next month for a long travel and I need to have a phone that will last longer than 2/3 of a day. Is it possible to get a new battery for this phone and if so, who do I take it to? I live in Taranaki. Any advice greatly appreciated.