Recent comments in /f/iphone

EScootyrant t1_j4qsopg wrote

I am aware of those you posted above. Did research prior to buying those Apple adapters.

However, explain to me why 13 PM get very warm with the 20W Apple wall wart?

With the 5W brick, this 13 PM is cool to the touch. Both times were inside a case.

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_--TiTaN--_ t1_j4pxpuy wrote

It’s not always that clear, charging with 5V requires more amps and that will lead to components heating up. So you may no be doing any favours to your battery by charging with slower brick (unless it’s one of those 5V 1A brick)

I had flir picture of power bank with charging chip running at 110C/230F charging at 5V 2.5A, can’t find it though, probably deleted.

There’s a reason why electricity from power plants is transferred at up to 1.000.000 Volt.

“The USB PD PPS (programmable power supply) technology determines the charging status of a battery in real-time, adjusting the voltage and current to deliver maximum power while minimizing the temperature rise.

Qualcomm’s Quick Charge technology has evolved with a focus on temperature management. Quick Charge 2.0 added Dual Charge, which uses two power-management ICs (PMICs) in the handset to split the charging current into two streams. This reduces handset and, therefore, a rise in battery temperature.

Quick Charge 3.0 without Dual Charge+ is up to 6° C cooler, 16% faster, and 38% more efficient than Quick Charge 2.0, and Quick Charge 3.0 using Dual Charge+ is up to 8° C cooler, 27% faster and 45% more efficient than Quick Charge 2.0 with Dual Charge.”

https://www.batterypowertips.com/how-fast-can-li-on-batteries-be-charged/

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