10+ Easiest Ways to Charge a Laptop Without a Charger? Here’s How

Here’s the quick answer. You can charge your laptop or Macbook without a charger in many ways such as using a power bank, connecting your laptop to a power source with USB type C, using the cigarette lighter of the car to access the car battery power, buying a universal charger, a standalone battery, a super battery, or just by using a compatible phone.

The Long Answer

Your laptop could run into charging problems any minute. Wait, it already has, otherwise, you wouldn’t be here. Worry not, however, as there are some ways to charge your laptop without a charger.

I have researched about those ways and taken only that work actually. Even if there are some risky ones, I’ve outlined all the necessary steps you should take in order to make things safe and sound.


This article applies for:

  1. How to charge laptop with usb?
  2. How to charge laptop with hdmi?
  3. How to charge laptop with power bank?

Let me explain more. Here’s how.

How to Charge Your Laptop Without a Charger or When you Lose it

To charge your laptop, you’d need two things: 

  1. A power source 
  2. A cord or a connection that uses that source to charge your laptop 

However, in doing so, you’d have to take a few things into your consideration. 

Knowing your laptop’s make and model plus its charging needs is important because this is the only way you can charge it safely. Sometimes, people just go overboard. They follow steps or processes that potentially harm their laptop. Those ways could harm them if they’re not careful. 

So, don’t be like them. 

Where to find the volts your laptop can sustain?

You can easily find how many volts your laptop needs by reading a leaf out of the booklet you got with your laptop. But I understand that you might have thrown the box somewhere in the attic and finding it would be the last thing you do. So, it’s better to just Google it. Type your laptop’s model and search how many volts charging device it needs. 

You’ll find your answers. If still not, post your question on Quora or any other forum where you could get your answer without splitting your hair. 

The power sources and the requisite cords 

Now that you know the volts, it’s time to search for the right power source and cords to charge your laptop. 

The Power Cords 

There are two types of USB cords that you can use to charge your laptop. 


The USB-A cord is the same that powers your external mouse and keyboard. They are rectangular and sometimes a nuisance as they don’t connect well. 


This is a relatively new cord introduced in laptops after their success in the mobile industry. They are small as compared to the USB-A but they pack a punch. However, to use them, your laptop should have a USB-C port. Look for a small rectangular port on either the left or the right flank of your laptop. 

If your machine is new and updated, you’d find it easily. However, if not, there are other ways as well where you don’t need to use any kind of USB cord to connect to a power supply. I’ll talk about them in a minute. 

The Power Supplies 

1. Power bank 

You may not have noticed earlier but power banks do what they are named. They charge your devices. Consider them as external batteries that have a huge capacity and are meant to be charged for you to carry a power source in your backpack. Well, they actually are rechargeable batteries with intelligent design. 

However, to charge your laptop:

  • Make sure that the power bank is fully charged, 
  • It is made to charge laptops and not just phones. It should have at least an output of at least 15V to 20V or according to your laptop’s requirements,
  • See if it comes with the right set of cords. Some power banks come with a dual-headed cord that has a USB-C and a universal charger head. If not, you’d have to look for one that goes with your laptop. In places where you find a computer supplies shop but not the relevant charger, make sure you buy a power bank. 

2. USB-C Charging Adapter 

An alternative to the power bank is to use a USB C charging adapter. This basically reduces the main volts to match that of the USB C 3.1 or 3.2. So, it doesn’t matter if you don’t have your laptop’s charger. Just plug the adapter into mains and plug a USB C cord into it with the other end into your laptop. It will start charging. 

You should understand that the charging may not be as fast as your main charger but something is definitely better than nothing. That makes sense when you’re stuck somewhere you shouldn’t be. 

When I’m traveling, I do take a USB C adapter just in case I lose my chargers in the way. Since it works both for my phone and laptop, I’m always worry-free. 

Therefore, I highly recommend you buy one and take it with you wherever you go. 

3. Car battery 

Some of the blogs talk about buying an inverter and then using it to power your laptop with the help of your car’s battery. Well, this doesn’t make any sense to me as it’s dangerous. You may buy a 300W power inverter but that’s a bulky fellow and carrying it around only makes sense if you’re traveling in places like the Himalayas where you don’t find power sources here and there. So, if you’re planning on going to remote places where only your car’s battery would be your power source, then buy it. 

However, before charging anything with the help of it, do watch a video or two and learn things. 

Instead of this, you could also use your car’s cigarette lighter. There are some devices or gadgets that use the power source of the lighter to help you change things. Keep in your mind that it will be slower but every bit worth a shot when you are stuck on a national highway with no one but your car. 

4. A “Universal Adapter” 

For travelers, there’s a charging gadget known as the universal adapter. It’s basically an AC or DC connector that has multiple charging tips suitable to be used with a variety of laptops. Buy that and you’d never have to search for individual chargers for your laptops if you carry more than one or anything like that. 

You could even help one of your friends or family members on the go. This one charger has the ability to charge all your future laptops. There’s a catch, however. You’ll have to buy the tips separately. That’s easy to do. No biggie. 

Also, the adapter is huge. That’s the only con I found so far. It will make your backpack slightly heavy, but hey, it’s worth it. Instead of taking separate chargers, you and your friends could only use this one to charge each laptop in the group. 

5. Chargeable external or “Super battery”

Another convenient way of dealing with your charging woes is to buy an externally chargeable battery. This is a separate battery sold with its own charger. Unlike your laptop’s battery that only charges once it’s in its slot, this battery can be charged without inserting it into any machine. 

All you have to do is plug it into a power source with the help of its charger and you’re good to go. Consider it as a power bank but in the form of your laptop’s battery. Unlike a power bank, you can insert it into your laptop and use it normally. 

However, make sure you don’t use its charger to charge your original battery in any way. That’s not how it’s meant to work. You could potentially blow things off. So, beware. 

Also, do not overcharge the spare battery as that shortens its life span. Some batteries come with their own meters, indicating how much they are charged while others don’t. You’d have to find out the time they take to fully charge and only then leave the battery on charge for that stipulated time. 

6. Standalone battery charger 

Another adapter available in the market is the standalone external battery charger that directly charges your battery as it were a super battery. Do you get it? No. 

The adapter has been made to connect to the points of the battery where it connects to the laptop. It uses the same channels to charge it. 

But before buying one make sure the output voltage is what your battery needs. Also, buy the one that has indicator LED lights to show you the charging status of the battery so that you don’t overcharge it

7. Your phone 

When you don’t have anything else to charge your laptop with, your smartphone could come to the rescue. Not all phones have this ability but you get the point. 

Can I charge my laptop with my phone?

Yes, you can because laptop ports also act as a power source for your mobile when connected through a wired connection, however, it won’t be as fast as your mobile proprietary power adapter.

Can you charge a laptop with HDMI?

Charging through an HDMI cable is possible, however, get a decent brand of HDMI cord in order to allow faster electrical flow to charge your battery cells.

Can you charge a laptop wirelessly?

As long as your laptop has a wireless charging feature, it will be able to charge it wirelessly, however, currently in the market, there aren’t many laptop brands that support such wireless features.


It is essential that you take care of your laptop’s charger and not lose or break it in any way. However, if the mishap has happened at a place where you can’t find a charger or any other power source, for that matter, the aforementioned ways could help you somehow. Hell, if you only have a USB type C and an adapter, you’d be able to charge your laptop without a charger. So, worry not, and follow any of the ways mentioned – carefully.

FAQs – How To Charge Laptop without Charger

Can I charge the laptop with a USB?

Yes, you can charge your laptop with a USB. However, make sure that the USB is type C 3.1 or 3.2. That’s because Type A does not support charging as you’d expect. Type C can be used to charge laptops by connecting a power bank or any other source. It is also faster. 

Can I charge a laptop with HDMI?

You can absolutely charge a laptop with HDMI. To do that, you’d have to make a few changes to the way you connect to, let’s say, a TV. Here are the steps:

  • Connect one end of the HDMI with the TV 
  • Connect the other end with a type C adapter or connecter 
  • Now charge your laptop with type C USB

Can I charge a laptop with any charger?

You can charge a laptop with a universal charger but not with any other laptop’s charger unless it uses the same volts or charging port. A universal charger comes with multiple charging pins that support charging laptops of multiple brands.

Can I charge a laptop with a power bank?

Charging a laptop with a power bank is very easy. All you have to do is buy a power bank that has an output voltage of at least 15V to 20V. It should also support USB C. Connect the power bank with USB C to the laptop and the charging will start. 

Can I charge a laptop with a portable charger?

Portable chargers are portable batteries. You can charge a laptop with them. However, having a USB C port is a must. Also, make sure that the portable charger you’re buying has the capacity to charge your laptop faster with enough watts and capacity mAh. The battery you’d be buying would be larger than expected, so keep that in mind.  

Can I charge a laptop with a phone charger?

Using the USB-C, you should be able to charge your laptop with your phone’s charger. Nowadays, laptops come with USB C charging ports. Even if they don’t, they have such ports to facilitate media transfer at a faster rate than the USB-A. If your laptop has this feature, you can use your phone’s type C charger to charge your laptop. It will receive the same watts as your phone, so make sure that your laptop can bear that. For example, if you’ve got a phone with a 33W charger but your laptop doesn’t support fast charging at this rate, you may wanna change the adapter or the charger as a whole