Patents reveal Samsung’s tri-fold battery surprises PhoneArenaPatents show Samsung’s tri-fold has three batteries – GSMArena.com news GSMArena.comGalaxy Z TriFold takes shape in patents: Three batteries, massive display SamMobileSamsung’s upcoming tri-fold phone could flex its power with a massive battery setup Android PoliceThe Galaxy Trifold could go for three batteries in leaked patent Android Central