Lumia1520 has best-in-class battery life, proves GSMArena battery life test.
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GSMArena labs: introducing a faster way to compare the battery endurance of phones - GSMArena.com news
GSMArena feature labs: The tests: Battery life
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Our Samsung Galaxy S II battery life test is complete, check out how it did [TEST]
GSMArena labs: introducing a faster way to compare the battery endurance of phones - GSMArena.com news
GSMArena labs: introducing a faster way to compare the battery endurance of phones - GSMArena.com news
GSMArena feature labs: The tests: Battery life
