As you may already know, one of the biggest problems with laptops is their battery life.
As a tool for daily use, we ask a lot of them whether it is for work, study, playing games, editing videos, in short, a lot of activities that, in short, quickly drain their battery.
In the past, you have probably heard about using an external battery (power bank) to charge a laptop.
But you might have noticed some of their disadvantages like:
- Incompatibility with the charging port, which involves the use of adapters (if possible)
- High prices because these models include a DC or AC port (like an outlet)
- Limited availability – there were very few models that could charge a laptop
Today we can still find such external batteries designed specifically for laptops in some online stores.
Instead, we see the trend towards a more universal approach external batteries with AC portsdesigned to be used to charge multiple types of devices, not just laptops:
But this option might be “too much” (and expensive) if we only want to charge our laptop and mobile phone.
So what other options do we have?
In addition to the presence of external batteries with DC and AC ports, it is the appearance of the USB Type-C port accompanied by the protocol Power supply (USB-C PD) which breathed new life into the sector:
This new port is much more convenient, powerful and versatilebecause its application ranges from device charging (which again can be headphones or laptops) to a new competitor in videothat settles into the battle between DisplayPort and HDMI.
USB-C therefore means the convergence of several functionalities in a single port.which has never been seen before with previous generations of USB.
However, we are particularly interested in the load aspect because we want to know how it is possible to charge any laptop with a power bank that has a USB-C port.
To do this we need to “introduce” you to the protocol that made this possible called Power supplywhich “exploits” the full capabilities of the Type-C port so that it can be designed to deliver up to 100 watt power (W).
This current is sufficient for most laptops today, which typically charge between 45W and 65W.
In addition, USB-C has taken a real step in the history of technology, which has led Apple to adopt it and integrate this port instead of Magsafe in many of its models, for example the Macbook Pro:
The world of external batteries, as well as many other sectors, has welcomed the arrival of this port and this protocol with open arms, so much so that USB-C and Power Delivery seem to have become an indissoluble union.
As a result, more and more external USB-C PD battery models are coming to the market that are able to charge your laptop with a USB-C port in “plug & play” mode.
But how do I charge my laptop if it doesn’t have a C port?
If your laptop does not have a Type-C port, we recommend that you follow this simple “trick” discovered by the portal Powerbank20.com :
It involves using a cable or adapter from USB-C to the DC port on your laptop which incorporates a trigger that tells the power bank about the charging voltage (V) of your laptop.
You can easily find these cables on AliExpress, although as explained in the PowerBank20 guide there are models 15V and 20Vso you need to pay attention to the specifications to avoid buying a cable that gives a higher voltage than the charging voltage of your laptop.
In conclusion, if you want to charge your laptop with an external battery, it is now easier than ever!
There are several options to choose from, with models with a USB-C PD port or AC port being the most recommended. It all depends on your charging needs and budget.