The iPhone 6s is equipped with a built-in, non-removable rechargeable lithium-ion 1715 mAh battery. According to Apple it offers up to 14 hours of talk time on 3G and up to 10 days of standby time from a single charge. Internet use is listed as 10 hours on 3G and LTE and up to 11 hours on Wi-Fi. The iPhone 6s also offers up to 11 hours of HD video playback and up to to 50 hours of audio playback.
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