Why does my phone battery die so fast?

smartphone low battery
Why do batteries die? This same question has probably crossed the mind of every cellphone user trying to send one last text before the screen blinks off.
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Samsung Galaxy Note 8 and S8 Mini leaks reveal important specs

Vietnamese leaker Tung Ha recently posted what he claims are the official press renders of the Samsung Galaxy Note 8. The renders show a change to the handset’s 19.5:9 aspect ratio, the first premium Samsung device to port dual cameras, a large new Infinity Display, a headphone jack and a rear fingerprint sensor moved away from the camera lens.