A Guide to Fast Chargers and Everything You Need to Know About Them

The quick charger is a real hidden object that many of us do not have proper control of. That it recharges your phone a little extra quickly says itself, but how does it really work? Is it good for your phone? And which fast charger is best for your particular phone?

Fast chargers

Most standard chargers for Smartphones work in much the same way. If we use a standard iPhone charger, it sends electricity with a voltage of 5 volts and 1 ampere. 5 times 1 gives us a power, measured in watts, of 5 watts. A few years ago this was a fully sufficient power to recharge the battery in your Smartphone, but today most phones are equipped with a really powerful battery which takes longer to charge. Waiting several hours for the mobile to be recharged is no hit and thus the need for better-charging technology arose- The quick charger is born!

How does a fast charger work?

Even though there are different fast charging techniques, the basic idea is the same: To add as much energy as possible to your battery, in as short a time as possible! This is done, in a simplified way, by either raising the voltage in the energy supply or/and by increasing the current supply. This way, your battery will charge faster. Voila, we’ve created a quick charger!

Fast Chargers – Good or bad?

A hotly debated topic when it comes to fast chargers is whether the fast charging technology is harmful to your battery/phone. The answer to that question is both yes and no.

All rechargeable mobile batteries have so-called charging cycles. This means that the battery can only be fully charged an X number of times before it starts to lose power. A mobile battery usually has 500 cycles, full up and discharges, before losing capacity. Something that can reduce the number of charge cycles on a battery is external influences such as high heat, humidity, and complete discharge. When you recharge your phone, the battery becomes slightly warmer than normal charging. This may eventually cause the battery to lose power.

If you overuse the quick charge function, then in the long term it can lead to a loss of battery capacity. On the other hand, if you use the fast charging function as intended, from time to time when you want to quickly have battery power on your phone, it is not harmful to your phone.

How to charge quickly in the best way

  • Avoid speeding the phone at night or when you do not have to
  • Keep the battery level between 20 and 90%
  • Use a Powerbank between the charges to avoid draining the battery
  • Avoid fast-charging the phone in bed or in places with high heat

To get the fastest possible charge for your particular phone, you can advantageously choose a charger from the same manufacturer as your phone. This way you know that the phone is fully compatible with the charger and that it can accommodate the charge just as it is intended! If you use a fast charger that is not compatible with your phone, it does no harm. The only thing that can happen is that the phone charges a little slower.

Fast charger for iPhone

To speed up an iPhone, a USB-C PD wall charger and a USB-C to Lightning cable are required. The USB-C PD power adapter needs a wattage of at least 18W, 29W, 30W, 61W or 87W to be able to fast charge the battery to 50% in under 30 minutes.

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