Can I Charge Chromebook With Phone Charger? (Find Out)

The answer to ‘Can I Charge My Chromebook With My Phone Charger’ is, you guessed it, maybe.

I say maybe because it depends on several factors such as what chargers your Chromebook and your phone use.

To charge a Chromebook with a phone charger will require both devices to use a USB Type-C® connector. Most devices in the last few years are equipped with USB-C.

How Do I Charge My Chromebook By Using My Phone Charger?

If you need or want to charge your Chromebook using your phone charger I’ll explain how it can be done in this article. I include information about Lenovo Chromebooks but it will apply to any manufacturer using the USB Type-C connector standard.

If you have lost your charger and need to know how to charge a Chromebook without a charger see the following steps. These will get your Chromebook charged back up and ready to use.

Can I Charge A Chromebook With A Phone Charger?

As I mentioned above, in order to charge your Chromebook with your phone charger you will need to make sure both devices have a USB-C port. Note that there are two types of USB-C ports which are, USB-C and USB-C/PD(power delivery). See below for the difference.

Ideally, to charge your Chromebook with your phone charger you would want to use a charger that is rated for USB-C/PD because it can supply higher voltage and wattage over a non PD charger. Also, a USB-C/PD charger is able to detect the connected device and provide the correct amount of power to charge it.

Answer:

Many new phones on the market today do incorporate USB-C/PD so using their chargers will work to charge a Chromebook.

A slightly older phone charger that is only USB-C may still be able to charge a Chromebook but it will be at a lower voltage and wattage. As such it will take much longer to charge and the device should be powered off during charging.

Chromebook USB-C Charging

What Is The Difference Between USB-C And USB-PD?

USB-C was designed to be reversible, so you can’t plug it in the wrong way. That is, you don’t have to flip the connector to make sure it fits, it just fits now.

USB-C was also designed to be used across all devices, from smartphones up to laptops and monitors. Lastly, it was designed to be future-proof as it can handle enough power to charge all your devices and transfer higher data rates.

USB-PD, or USB-C/PD as it is sometimes written, is a Power Delivery specification. USB-PD allows for a higher power that allows devices to charge more quickly over USB. Two devices using USB-PD determine the correct amount of power that can be used.

A USB-C/PD charger is able to detect the connected device and provide the correct amount of power to charge it.

To charge a Chromebook without a charger can be done with a USB-PD device or a USB-PD phone charger.

USB-C uses up to 5V and up to 3A.
USB-PD uses 5V up to 20V and up to 5A.
If you need more than 5V or 3A, then use a USB-PD Charger.

Note: Be sure your USB-C charger or cable is compliant with the standard as there are many cheap knock-offs on the market, as reported by CNET. A poorly designed component can damage your laptop or phone.

USB SpecificationMax. VoltageMax. CurrentMax. Power
USB 2.05V500mA2.5 W
USB 3.0/3.15V900mA4.5 W
USB Type-C5V3A15 W
USB-PD20V5A100 W

Read my article titled “What Are The Different Versions Of USB?
to get a better understanding of the USB standard as well as the types of USB connectors. The USB revisions have been designed to achieve a more unified and easier industry standard.

Lenovo Chromebooks With USB-C Ports

I’ve included a table of Lenovo Chromebooks with USB-C ports. If you own one of these use the reference to know what the current A/C adapter is rated at.

Chromebook NameMachine TypePower Adapter
Chromebook C340-1581T945W USB-C
IdeaPad Duet ChromebookZA6F5V / 2.0A
Lenovo 10e Chromebook Tablet82AM45W USB-C
Lenovo 300e Chromebook 2nd Gen AST82CE45W USB-C
Lenovo Chromebook S345-14AST81WX45W USB-C
IdeaPad Flex 5 CB 13IML0582B845W USB-C
Yoga Chromebook C63081JX45W USB-C

Lenovo Chromebook Power Adapters With USB-C

This table displays available Lenovo A/C adapters you can purchase. Be sure to check if it is compatible with your laptop. These use the USB-C connection.

USB-C Adapter NamePart NumberOutput Voltages
Lenovo 65W USB-C GaN Adapter40AWGC65WW5V/9V/15V/20V
Lenovo 45W USB-C AC Portable Adapter4X20V078815V/9V/15V/20V
Lenovo Slim USB-C 65W AC AdapterGX20Z462565V, 9V, 15V, 20V
Lenovo 65W USB-C DC Travel Adapter40AK0065WW5V, 9V, 15V, 20V

Do All Chromebooks Use The Same Charger?

Not all Chromebooks use the same charger. Newer Chromebooks with USB-C can use other USB-C charges, check if it has power delivery(PD) as PD is able to detect voltage. Older Chromebook chargers with rounded barrel connectors are not interchangeable. These can provide too much or too little power, or the wrong polarity.

In Summary

If you find yourself in a situation where you may need to charge your Chromebook with a phone charger, you can certainly do it provided both devices use USB-C. Newer phones support and use USB-PD which is ideal to use for charging a Chromebook.