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Samsung S4 wins both fastest smartphone and best battery-life in UK consumer group's tests
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Samsung Galaxy S 4 ZeroLemon 7500 mAh Extended Battery Review
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Maximize your Galaxy S4's battery life - Video - CNET
How to Totally Maximize the Battery Life of Your Samsung Galaxy S4 « Samsung :: Gadget Hacks
Battery Life & Charging - Samsung Galaxy S 4 Review - Part 1
Samsung Galaxy S4 Google Play Edition battery life tests are done, here are the results
How to Totally Maximize the Battery Life of Your Samsung Galaxy S4 « Samsung :: Gadget Hacks
Samsung Galaxy S4 – Battery Life, Connectivity and Verdict Review | Trusted Reviews
Samsung Galaxy S4 battery life tests are done, here's how it did
Battery Life & Charging - Samsung Galaxy S 4 Review - Part 1
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Galaxy Tab S4 Battery Test: Fast Charge, Slow Burn | Beebom
Samsung I9505 Galaxy S4 battery life tests updated with final firmware, check out the new scores
Samsung S4 retains best battery-life title in rigorous consumer association tests
Samsung Galaxy S4 battery life tests are done, here's how it did
