A laptop charger should be your first choice for effectively charging your device. But what can you do if you purchase a laptop with a faulty charging port, or you're traveling and don't have access to an electrical outlet? How to charge a laptop without a charger? There are several alternative methods to extend your laptop's battery life. For example, charging laptop with USB C can be a helpful solution.

Charging the Laptop with a Power Bank

A power bank with a sufficiently high output power can allow you to charge larger devices, such as a laptop. This is especially useful when you’re in a place without access to an electrical outlet, or even during a flight. In carry-on luggage, you are allowed to bring a power bank up to 100 Wh or 27,000 mAh. The PowerPlay Ultra power bank, with a maximum charging power of 65W and a capacity of 26,800 mAh, meets these specifications and can be an invaluable tool if you're unable to charge your laptop with a standard charger. Remember – for this method to work, your laptop must have a USB-C port that supports charging.

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Universal USB-C Laptop Chargers

Traditional chargers with a USB-C port can also replace a laptop power adapter, as long as they have sufficient power. In our selection, you’ll find USB-C wall chargers with fast charging capabilities. These chargers adjust their power output to the specific device. They also feature temperature control and protection against overloads and short circuits. This ensures that both your charger and your laptop remain safe during use.

Compact GaN Chargers

Chargers made with GaN technology offer much more than just standard phone charging. They are also a convenient and efficient way to charge a laptop without a power adapter. A 65W GaN charger can charge a MacBook Pro up to 70 percent in under 2 hours. These chargers are known for their compact size, making them an excellent choice for travel, especially when space is limited. However, as with previous solutions, it's important to remember that to use this option, your laptop must have a USB-C port that supports device charging.

Charging Laptops Without USB-C Power Support

Not all laptops can be charged with wall chargers or power banks due to the lack of a USB-C port, which is often missing in older laptops. Additionally, the device's specifications can pose challenges. Some more powerful laptops, such as gaming laptops, require a dedicated power adapter. Connecting a charger with insufficient power might result in the laptop not charging, and in extreme cases, it could even damage the device. To ensure the best and most efficient performance for your device, it’s important to choose the appropriate power adapter.

How to Choose a Laptop Charger?

The right laptop charger is key to safely using your laptop. To select the correct one, check the original charger, the manual, or the bottom of the laptop for information about the required voltage (V) and current (A). Your new charger must have the same voltage value, while the current can be equal to or higher than the original, but never lower. Many people also wonder if they can use a more powerful charger than the original one. The charger's power should be the same or higher than the original, which will not affect the quality or safety of its operation. Before purchasing, it's also essential to check the plug type to ensure compatibility with your specific laptop model. If you're unsure about the compatibility of the plug, feel free to contact us. Our specialists will help you choose the right charger for your device.

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How to charge a laptop without a charger - summary

Charging laptop with USB C is a great alternative when using a standard power adapter is not possible. The methods described above will help extend your device's battery life and ensure overall functionality if the charging port is faulty. However, it’s important to remember that these are emergency charging solutions – it's always a good idea to have a dedicated laptop charger in your electronic gear. Greencell chargers are the best and most effective way to power both smaller and larger laptops. Check out our range of chargers on the Greencell website.