Each new phone needs to feature Fast charging on Apple iPhone. It makes it simple and quick for consumers to charge their batteries. It goes by several names a lot. These include Qualcomm Quick charge, Samsung Adaptive Fast Charging and OnePlus Dash Charge. This is an essential feature for fantastic, transient phones. Even if they don’t have much shelf life, it doesn’t matter. You can use portable chargers with chargers for quick charging. Also, smartphones, tablets, and computers can use this functionality. Some Android and iPhone users want to know when to charge their devices’ batteries.

First of all, let’s see in an ultra-synthetic way how battery recharging works.

Smartphone batteries use lithium ions and chemical processes to produce energy. When depleted, rechargeable batteries absorb energy and when recharged, they provide power. Current passes to recharge the battery, with higher voltage allowing faster recharging. The charge controller regulates the battery’s electricity flow. It sets the charging current. Lithium-ion controllers can use converters or ICs. They adjust the voltage or resistance between the charger and the battery. Chargers have different power levels based on their technology. A phone’s software generally regulates how much current the charge controller absorbs.

Take into account that the power in watts is obtained by multiplying Volt and Ampere.

A typical USB 1.0 plug and 2.0 can provide up to 5 V for 0.5 A = 2.5 W.

The USB 3.0 ports push instead of a 5V power to 0.9A = 4.5 W.

USB-C , the plug oval-shaped of some more expensive smartphones, it is often a USB 3.1 that, potentially, can provide a much higher voltage by taking advantage of USB Power Delivery (USB-PD) specifications.

The maximum power is 20V / 5A = 100W.

So, with the voltage measured in Volt, the Current in Ampere and the maximum Power in Watts, we can summarize that:

  • USB 1.0: 5V – 0.5A – 2.5W
  • USB 2.0: 5V – 0.5A – 2.5W
  • USB 3.0: 5V – 0.5 A / 0.9A – 4.5W
  • USB 3.1 (USB-C + USB-PD): 5V-20V – 0.5A / 0.9A / 1.5A / 3A / 5A – 100W

More complicated are the battery charging specifications, which refer specifically to the power taken from a USB port for charging.

Charging batteries involves taking power from a USB port. So, its specs are unique. The latest BC 1.1 spec outlines three power sources: a defined downstream port (SDP), a charging downstream port (CDP), and a dedicated charging port (DCP). CDP, used in today’s smartphones and laptops, can deliver up to 1.5 A. For more info, please read this technical piece.

Fast charging on Apple iPhone

iPhone 8 or iPhone 8 Plus have the option for fast charging and the USB type PD 14.5 V 2A power is 29 watts. To use this, you need an iPhone 8 or iPhone X and a separate USB-PD charger, so it’s not very compact. 5-watt power output and the standard charger is slow. Anker USB-C chargers are good. For lightning cables, use only Apple iPhone or Anker ones. Only iPhone 6 and 6 Plus users should buy the faster iPad 12-watt charger.

Quick upload of Android smartphones

You can charge new Android phones faster. They now have fast charging technology. Most ordinary phones take less than 30 minutes to charge to 50-60%. So, it’s easy to charge your phone halfway through the day. The most common Fast charging on Apple iPhone have Qualcomm Snapdragon processors. Quick Charge 4 charges to 50 percent in 15 minutes. That’s 30 percent faster than Quick Charge 3.0 and 60 percent quicker than Quick Charge 2.0. Quick Charge versions on older Qualcomm smartphones are not as good as the current one. But, if applied, they can be fast.

More Tips Quick Upload Your Android Phone

The smartphone charger should be good for quick charging. So, it may be okay to buy a compatible charger for the used phone to avoid slow charging. The cable you use to connect the charger to the smartphone should allow fast charging. The Anker Quick Charge 3.0 charger works only with Samsung, Google, HTC, and LG phones. It won’t charge Huawei or OnePlus phones. Anker Powerline cable comes priced at a cost of 7 euros. Anker chargers and cables may power phones that don’t have Quick Charge 3.0 capability. Android users can measure charging power with an app called Ampere. And, they can install the AccuBattery app from the Play Store.