One of the main reasons why the world has moved to laptops is the freedom and portability. No one has the time to sit at the same place for hours unless they are in the office. Ever since their introduction, laptops have always come with a charger. Now the thing is that every charger is different; most of them are brand/model specific while a few are universal.

However, all these chargers require an AC power source to work. So, what if you do not have access to AC power, or what if your charger is broken, or what if you have accidentally bought the wrong charger. Your laptop will only last for so long and then you’d need to find an alternative to charging. Here are a few things that you can do if you want to charge a laptop without a charger.

Bring a Spare Battery:

There is a reason why most laptop batteries start to deteriorate after some time. The manufactures know that not everyone has the luxury to plug-in all the time and they would need to buy a new battery as soon as the old one starts to die quicker than usual. So, if you do not have a charger then the best thing you can do is to buy a spare battery. Sure, it is by no means a permanent solution, but it is one of the best, short-term solution.

Additionally, manufacturers have now introduced external battery chargers. Again, it is a top-notch marketing thing, but it is convenient for the users anyway. These battery chargers are also portable devices that are designed to plug your laptop battery directly into them. So, use your primary battery and keep the extra battery on charge and vice versa. However, you need to make sure that you buy the right external battery and charger as most of these devices are brand specific and only a few of them come with the tag of universal.

Buy a Universal Power Adapter:

If you are unable to find your laptop’ charger or you are heading to a place where you may not be able to plug-in your laptop then a universal power adapter may not be a bad choice. Again, you just need to make sure that you are buying the right adapter. Most laptops are solely designed to be charged by sockets and using a power adapter can be a dangerous move for your laptop. Some of the universal power adapters are not even universal and may not be able to charge laptops of different brands.

However, if you manage to get the right universal power adapter then your life would be at ease. Finding the right power adapter isn’t easy and you may have to do a lot of research before buying one. You will need to read a lot of reviews to ensure that your spending doesn’t go to waste. Universal power adapters do not come for cheap, but most of the expensive ones are worth their money. Do not go for the cheap option as it may not be long-lasting or reliable.

Charge the Laptop with USB:

Now, most of you would think that the USB ports in the laptop are for providing charges to connected resources, such as a phone, or pulling information in, such as pictures and files and not the other way around. That is indeed true that the normal USB ports cannot be used for charging a laptop, but technology has come a long way and the new USB Type C has offered alternative ways to charge a laptop. USB Type-C ports support both inbound and outbound power. If your laptop has a USB Type-C port, you can use a USB Type-C battery pack, just like you’d use for your cell phone.

You just need to understand that most USB Type-C battery packs deliver just 5 volts while the laptops run on 8-12 volts. So, you can go this route but you will either need to buy an expensive, powerful battery pack or you will need to be very patient with extremely slow charging. The same issue will raise its head if you try to use one of your car’s USB ports to charge your battery. This will get the job done if you’ve got time to spare and the engine is running. So, this option is only a viable alternative if you have a powerful USB-C type battery pack.

Use your Cell Phone:

Now, most of you have already been put off by this idea of charging a laptop with your phone. Understandably, a laptop battery is much bigger than the phone’s battery, and therefore charging the laptop with a cell phone doesn’t make much sense. As a last-ditch charging method in an emergency, most current smartphone models can be used as a backup power supply. Keep in mind that even the last iPhones or Android phones won’t be able to charge the laptop more than 30% max and will be dead themselves.

Essentially, it is just like trading one dead battery for another. You can use the cell phone to charge the laptop, but it will charge slow and will only last for 30 minutes or so. So, if you have decided to use this method then you will need to buy a USB Type-C to USB Type-C cable. Next, connect your phone to your laptop, and find your phone’s USB settings. It may be different for iOS and Android, but you will need to select the option to supply power. Now your laptop will start charging and your phone will start draining.

One thing you need to understand that this method is perhaps the most temporary solutions, and one shouldn’t make a habit of this. There are many drawbacks involved in this method and it is not worth sacrificing the phone’ battery for laptop’ battery regularly. If you are using the phone for charging the laptop battery in a car then make sure that you have a charger si=o you can plug-in and recharge your phone.

Use your Car’ Battery:

Most of you were waiting for this method, weren’t you? One other reason you might need to charge your laptop without a conventional charger is if you spend a lot of time on the road and cannot plug-in your charger in a socket. You can surely charge your laptop with your car’ battery, but it isn’t as easy as it seems. You will need to make some improvisations to make it happen. One of the simplest ways to turn your car battery into a laptop charger is by buying a power inverter.

The power inverter plugs into your car’s cigarette lighter outlet and can be used to operate equipment that requires up to 300 watts of continuous power. This power is enough to charge the laptop at a reasonable speed. The process is quite simple, but the downside of this method is that you have a big, clunky power inverter sitting somewhere on your vehicle’s floor. However, there are smaller power inverters as well and if you are willing to spend money, you can make things balance out.

Alternatively, you can hardwire your laptop into the car. While this won’t allow you to remove it easily, it is a decent alternative if your laptop is mounted in your car most of the times. This method involves more complications than the power inverter and therefore, it would be much easier if you go for that option. Now coming to the technicalities, using car’ battery for laptop charging is quite risky and dangerous as well.

The devices that are designed for automotive use come loaded with a voltage regulator that controls the flow as per the requirement of the device. Conversely, most laptops do not have voltage-regulators installed in them as they are designed to use their native AC adapters. So, if you are thinking to hardwire your laptop in your car, you will need to adjust the voltage of DC accordingly. Not using a voltage regulator may not be a good idea by any means.


So, these are some of the alternative methods that you can use to charge your laptop without a charger. As you may already have concluded that none of these methods is perfect, it is important to understand that this the best you can do. These methods are far from perfect, but they aren’t bad for short term alternatives. Try these methods, but make sure that you are very careful or else you may end up destroying your device.