What is it and how does reverse wireless charging work

Reverse wireless charging is present on a few latest generation smartphones and allows devices to become charging sources.

For months now, people have been talking about the new reverse wireless charging technology for our smartphones. This is an innovative and latest feature that is included in some new devices and gives users the ability to wirelessly charge both the smartphone and more, such as smartwatches and various accessories. Let's see together how reverse wireless charging works and the devices that support it.

What is reverse wireless charging

Today we have two different ways to charge our cell phone, we can do it via wireless charging or with the current charger cable. The first method is the one that manages to transfer energy to the smartphone thanks to electromagnetic induction. These are precisely the ways that we know and use every day. Let's see now what is meant by reverse wireless charging, which allows smartphones to turn into a charging station, so that it can be used to charge other devices without cables.

So the difference is not the way of charging, which is the same, but the fact that the smartphone can be transformed into a source of energy for various accessories. We have seen the debut of this innovative technology on the Huawei Mate 20 Pro and P30 Pro, and then also on Samsung, in particular the Galawy S10 line. However, it is thought that soon all new smartphones will be equipped with this technology.

Reverse wireless charging, is it faster?

The new reverse wireless charging technology is not so fast, in fact it is undoubtedly a new solution that decreases consumption and is very useful for emergency recharges, such as when someone close to us needs some charging and does not have the charger or any powerbank device. Another case where it is very useful is when you need to charge wireless headphones or other accessories.

The maximum that Qi wireless charging can provide is 20W, although there have been many important advances in wired fast charging technology over the years. It's also true that most chargers on the market don't even exceed 10W. So with a wireless charger you can achieve the same result as with a Super VOOC with at least 4 times the charging time. There are no power standards for reverse wireless charging although we know for sure today that both Samsung and Huawei's technology is not very fast. The Galaxy S10's reverse wireless charging guarantees a maximum output of up to 4W, the Mate 20 Pro between 2.5W and 3W. The source device always has a limit of energy it can transfer that is dictated by its battery, i.e. its power source.

Smartphones that support reverse wireless charging

To date, let's see in detail which smartphones support reverse wireless charging technology. The first one is the Huawei Mate 20 Pro, which is capable of charging other devices via the Qi standard. It was presented last year, precisely in October 2018, and has a 4,200 mAh battery that can fully charge for example two true-wireless headphones and get to the end of the day without any problem. The second one we can talk about was also produced by the same Chinese House and it is the Huawei P30 Pro, the latest flagship presented at the end of March 2019. It is actually the brother of the Mate 20 Pro and in fact is very similar to it in several respects, it is a device renowned for its excellent quality photo compartment.

Next we go to the entire line Samsung Galaxy S10, S10+ and S10e, the House has introduced these three new smartphones of the Galaxy S10 family, all capable of being able to charge other devices wirelessly.

Last but not least, you'll want to know which devices can be charged by taking advantage of reverse wireless charging technology. Well, I assure you that there is no limit, smartphone, headphones, mouse or any other accessory, if compatible with the Qi wireless charging standard, then it can receive power from devices equipped with reverse wireless charging without any problem.