Some Lightning-style cables seem to take longer to charge up my devices. Is it true? Yes! I buy a lot of aftermarket products (read: cheap knockoff junk), and after a few months I noticed that one of my knockoff iPhone and iPad Lightning cables was really slow at charging. I decided to measure the power delivered over a various collection of Lightning cables, and I can say with near certainty that some knock-off cables result in slow charging. Measuring Lightning Cable Performance I took my 2018 iPad, along with its genuine Apple 12 watt charger and a USB power meter. I plugged my nearly depleted iPad into this system with various lightning-style cables. The following table shows what I found after numerous samples. All numbers are estimated given a few samples. Lightning Cable Performance with Apple 12 watt charger Genuine cable, delivered with an iPad from Apple...: 2.05 Amps Genuine cable, delivered with an iPad from Apple...: 2.10 Amps Gen...
Useful and Useless Ideas from Lance J.