OEM SPEC B600BC 2600 mAh Battery For Samsung Galaxy S4 IV i9500 i9505 (2 Pack) | eBay
Samsung Galaxy S4 battery life tests are done, here's how it did
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Samsung S4 wins both fastest smartphone and best battery-life in UK consumer group's tests
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Abysmal battery life on Gear S4. Look at the percentages that have been used and my current percentage, as well as how long it's been since last full charge. This doesn't add
Samsung's Galaxy S4 beats Apple's iPhone 5S for battery power | Daily Mail Online
Samsung S4 wins both fastest smartphone and best battery-life in UK consumer group's tests