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_--TiTaN--_ t1_j4qt90p wrote

Reply to comment by EScootyrant in iPhone 13 Pro Max charges to 50-60% and stays like that rest of the night while plugged in. Does this happen to anyone else? by Whiffler

What was the temperature difference?

30C feels warm to the touch but it’s nothing for battery.

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EScootyrant t1_j4qtlyr wrote

Idk, it is always very warm with the 20W. Always. Worse if I use the wireless MagSafe puck.

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_--TiTaN--_ t1_j4quikg wrote

Yeah, with MagSafe 25% of energy is wasted as heat (takes 20 watt but delivering only 15 to phone). 20 watt is almost at limit how fast 13 can charge (22watt max I think), and 5 watt (5V at 1A) charger is super slow in comparison. That’s why in my original comment I said specifically that if you use that charger you’ll be good. How long does it take to fully charge? Must be 4h at minimum?

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