What devices can you charge with a USB-C laptop charger

Each machine normally comes with its personal charger, and there are occasions once we get to the purpose the place we have no idea which charger was for which machine. Recently, USB-C chargers have gotten increasingly widespread for a number of devices, particularly for smartphones and laptops, so it’s regular that we marvel if it might not be simpler to make use of a single charger for all the pieces, proper?

You can charge (nearly) something with your laptop’s USB-C charger

With the latest rise in recognition of sure requirements (USB-C and USB-PD), the quick reply to the query we posed is that usually sure, it’s protected to make use of a highly effective laptop charger to charge different devices. However, as you could have observed if you are an observant reader, we’ve used the expression “basically”, since as at all times there are some exceptions as a result of in the end it would rely upon the laptop charger and naturally additionally on the machine whose battery you intend to charge with it. .

Laptop with USB-C charger

For the compatibility between the laptop charger and the opposite machine to achieve success (that’s, in order that you can use the laptop charger to charge the battery of one other machine) two situations have to be met, the obvious of which is that they share the identical bodily kind of port, on this case USB-C.

In 2014, the USB-C connector was formally introduced by USB Implementer’s Forum (USB-IF), a non-profit group that brings collectively business main firms akin to Microsoft, Intel or Apple. USB-C (initially referred to as USB Type-C) was conceived with the thought of ​​creating a single common normal that will clear up all the issues of earlier designs; Fully reversible, the USB-C can be sufficiently small to suit smartphones, however strong sufficient to energy laptops and even displays, as you could already know.

If we transfer ahead to 2020, USB-C has change into the brand new normal in all varieties of devices, and at this time the overwhelming majority of smartphones and laptops already carry this connector for energy; in actual fact, the European Union is pulling strings to make sure that USB-C is obligatory in all smartphones any more, so not solely is it more and more widespread to seek out devices with such a connector, however it quickly appears which will probably be obligatory.


Therefore and in abstract, the primary situation is clearly that each the laptop charger and the machine whose battery you intend to charge is USB-C, since clearly you can not aspire to charge the battery of, for instance, a smartphone with a laptop charger. typical with its particular plug kind, at the very least not with out utilizing an adapter.

It is important to know the charging protocol

Having a USB-C connector doesn’t assure that all the pieces is routinely suitable, and the second situation, along with the truth that each devices share the bodily USB-C connector, is that in addition they have the identical charging protocol. Fortunately, in case your laptop costs its battery by means of a USB-C port it would nearly actually assist the USB-PD (USB Power Delivery) charging protocol. This is the most typical protocol at this time and permits energy output of as much as 20V at 5A (100 watts of energy) in laptops, and additionally it is the protocol behind quick charging applied sciences not too long ago carried out by Apple and Google of their iPhone and Pixel terminals respectively, for instance.


Today, all fashionable batteries have a built-in charge controller that regulates the enter voltage and prevents overcharging. This works in conjunction with the truth that most chargers additionally assist totally different ranges of output voltage, so in observe which means when you join a charger to a machine, they each have a sort of “speak” or “negotiation” in one another. the place the machine “tells” the charger how a lot voltage and amperage it should provide to charge your battery.

Precisely due to this negotiation, which means even when your machine doesn’t assist quick charging, it would proceed to work and charge its battery with your laptop’s USB-C charger, for the reason that charger will merely default to the usual price of 5V and 1A which most devices want. Now, the truth that it takes kind of to charge the battery of the opposite machine is one thing else.

Always use a good high quality / authentic charger

So far we’ve seen that the usual will permit you to charge virtually any fashionable machine with a USB-C laptop charger, however there’s yet one more factor to remember: the entire above assumes that your laptop’s USB-C charger can efficiently negotiate the ability required by the opposite machine, and whereas that is a very fundamental specification for nearly any energy provide, the truth is that there’s nonetheless a small minority of poor high quality, ‘pretend’ chargers that do not meet the requirements. specs dictated by USB-IF.

USB-C chargers

Therefore, the advice if you intend to charge one other machine utilizing the USB-C charger of your laptop is that you guarantee that that is the unique one (since because it should meet a sequence of specs and rules, it should certainly meet the usual USB-IF), or in case it isn’t the unique charger, make sure that it’s at the very least a good high quality one and never a low cost and poor high quality one that might give you issues.

You ought to know that some retailers akin to Amazon have already banned the sale of USB chargers that don’t comply with the rules, besides it’s nonetheless vital to focus on this reality since if you have been to attempt to charge the battery of, for instance, a pill with a charger «from the Chinese ‘might provide you with extra voltage / amperage than you want (as a result of it isn’t capable of negotiate) and ultimately overload your machine and harm it.