Submitted by Professional_Shift96 t3_122tefy in iphone

Hi, I bought an anker 511 nano pro 20w with a powerline 3 cable for my iphone but I realized charging speed is so slow even slower than my 5w apple originall , can someone tell me whats going on?

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unusualreply t1_jdtpsd6 wrote

The Anker 511 Nano Pro with the powerline 3 (usb c to Lightning) should charge your XS up to 18 watts max. This should get you from 0-50% in around 30 minutes but not to 100% until around 2 hours. This is because the charging curve slows significantly as you approach 100% to preserve battery heath.

You can test the actual charging rate using an inexpensive usb c voltmeter from Amazon to get a definite answer but it’s possible that you are just noticing the slower charging between 50-100%.

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