While it's true that we could criticize Apple phones for being very expensive, technical characteristics While they're not better than those on cheaper Android phones, they do have some features. specific advantages which in practice make a difference. This is the case of USB charging system via a Mac.
The iPhone USB battery charging system
Anyone would say that charging a mobile phone battery via PC means having to charge the battery for many more hours to achieve the same energy capacity as if we connected it to the wall outlet. power grid from home, and even more so if we connected it to a compatible battery charger fast chargeIn reality, the speed depends on two key factors: the power negotiated between the charger and the phone, and the cable used (its current limit and, if it is high power, whether it has an e-marker).
However, if you have an iPhone and a Mac, USB charging will be even faster than charging via the electrical grid. It's simple. The Mac multiplies the energy supply for the iPhone, so the battery charges very quickly. So quickly, in fact, that some users, when short on time and needing a fast charge, prefer to charge their phone with their Mac rather than a wall outlet. It's worth noting that this only applies to basic, low-power chargers; with USB-C adapters... Power Delivery (PD) With higher wattage, the plug can be as fast as or faster than the Mac, as the iPhone safely decides how much power to receive.
This charging system should also be present in Android phones. But of course, this depends more on the computer manufacturers than on the phones themselves. We would need to consider drivers for each computer and each mobile device. Windows would have to add this new feature to the operating system, as proposed. Google to standardize fast charging on AndroidMobile phones should also be compatible with this USB fast charging system from a PC. That said, modern standards such as USB Power Delivery They offer cross-compatibility without the need for specific drivers, while proprietary technologies may require a brand-name charger and cable to reach their maximum speed.
In short, this is when it becomes clear that being the manufacturer of a computer and a smartphone, as well as the operating system of both, it is relevant.
In fact, in the case of an Android smartphone, the phone manufacturer might be Samsung, the operating system designer might be Google (since it uses Android), the computer's operating system designer might be Microsoft (since it uses Windows), and the computer manufacturer could be Asus. It's actually almost impossible to achieve USB charging on Android phones, but it would be really useful. USB-C and PD This has been greatly simplified: the key is that the charger and the mobile phone communicate with the same device. protocol.
USB-C, protocols and real-world compatibility
USB-C is a reversible 24-pin connector capable of transport energy, data and video through the same cable. Just because two ports fit doesn't guarantee the same experience: compatibility is determined by charging protocols and cable quality.
- USB Power Delivery (PD): An open protocol that dynamically negotiates voltage and current (even at high power levels in laptops), preventing overheating and ensuring safe loads.
- Quick Charge (QC): Qualcomm technology popular in Android. iPhones don't use it; if you connect a QC charger to an iPhone, it will crash. standard/PD compatible.
- Apple's "Fast Charging": iPhones use PD for fast charging; they don't need QC.
- Proprietary protocols: Brands like Xiaomi, Huawei, and Vivo have their own proprietary systems extremely high power that require their charger and cable to perform at their best.
Practical compatibility and real-world cases
- Android cables on iPhone: They can charge if they are USB-C and the set supports PD; if the cable is of poor quality or only designed for a certain protocol, the speed may be slow. less or not start charging.
- Third-party chargers: Without certification or PD, performance may be reduced; with PD, they usually offer a optimal experience on iPhone.
- Mixed households: A single cable/brick can charge multiple devices, but each one will negotiate its own charging speed. power and data speed differently.
- Comparative tests: On iPhone, "well-specified" PD adapters and cables charge faster and consistently better than those designed for QC without PD.
Can I use Android chargers and non-Apple cables with my iPhone?
The short answer is yes: a 50W Android charger won't "force" 50W onto the iPhone; the phone negotiates what it can handle. It prioritizes. USB-C PDUse high-quality cables (with e-marking for high power) and avoid products without basic certifications. Recommendations:
- Use PD whenever you can; otherwise, it will work, but more slowly.
- Check the wire: For charging only, a standard one is fine; for fast data transfer, look for USB 3/4 or Thunderbolt.
- Avoid counterfeit goods and damaged cables; they are the main source of failures.
Reverse charging and energy direction
With an iPhone with USB-C, it is possible to reverse charge to other mobile phones or accessories. The usual power is around 4,5 W And, for now, there's no setting to choose whether the power goes in or out; sometimes reversing the cable's orientation changes the direction of the charge.
Data speed and cable types
Many cables included with mobile phones are USB 2.0 (480 Mbps). To move high-resolution video or connect external drives, choose cables. USB 3/USB 4 o Thunderbolt (up to tens of Gbps). On iPhones with USB-C, some models operate at USB 2.0 and others enable USB 3, which significantly speeds up the transfer.
The convergence towards USB-C also aims to reduce electronic waste And, incidentally, simplify accessories: a good PD charger and a couple of quality cables solve most everyday situations without sacrificing safety or speed.
