What I don’t understand is what material makes them charge slower than others
Please and thank you
In: Technology
Most of the time is is simply thinner electrical conductors. A thinner wire has higher resistance so the voltage will drop over it at higher current.
The resistance is also proportional to the cable length so a cable diameter that work fine on a short cable might not work for a long calble.
A thinner wire is cheaper because less copper is needed.
There are different things that can cause this. For older phones the actual wires that carry power in the cable are pretty thin and can slow charging. But for newer phones the charger actually turns up the voltage to charge faster. To make sure this is safe, the charger has to talk to the cable and phone before turning up the volts. If the cable you have doesn’t pass this test, you’ll be limited to that slower charge rate.
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