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IMO your posted pics look fine but as everyone says they have been massaged so much between the original sensor and the end samples posted on this forum that there's no point in any analysis. Tether the phone to a computer and drag out the native pics and check those on a big monitor. That said, assuming you are using the 11's fast-charger and not an older standard charger, your phone does have an issue if it's taking 7 hours to charge.
 
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