Apple iPhone 6s Plus

Power Supply

As specified by Apple

Talk time: up to 24 h with UMTS (3G)
Internet use: up to 12 h with 3G, LTE or WLAN
HD video playback: up to 14 h
Audio playback: up to 80 h
Standby time: up to 16 days
Built-in rechargeable lithium-ion battery with 2750 mAh
Charging via USB to computer system or power adapter

Tip: If recharging with the included 5W power adapter (see photo) takes too long, use Apple's Power Adapter for iPads or MacBook Air instead (buy separately if necessary).
However, slower charging will save the battery …

Battery running time depents from how you are using the iPhone. By very low use but hearing music 3 hours daily it lasts 2 days with approx. 40 % remain. In order to avoid stressing the battery I usually charge it up to an maximum of 70 % and use it until a remain capacity of approx. 30 %. Therefore my indications of battery performance are not excessive.

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