Can 18W Power Bank Charge Laptop? A Complete Analysis

Power banks have revolutionized modern portable & handy charging, but still, “Can 18W Power Bank Charge Laptop?” is a question many may have when purchasing a portable charger.

The answer to this question depends on the specific laptop model and its power requirements, and that’s up next! Keep reading to understand.

What I'll Learn?

Can 18W Power Bank Charge Laptop?

Yes, a laptop can be charged by an 18W power bank. It may not be able to charge the computer to full capacity or as rapidly as a genuine laptop charger. The power bank’s ability to store charge and the laptop’s power consumption will also impact how long it can charge the computer.

An 18W power bank may be able to charge some laptops, but it may not provide enough power to charge larger or more power-hungry models fully.

Furthermore, not all laptops are equipped with USB-C charging connections, which are essential for charging laptops with power banks.

Some power banks cannot provide the high power output necessary for laptops and may be unable to charge them. Before attempting to charge a laptop with a power bank, carefully check the specs of the power bank and the laptop.

What Types of Laptops Can Be Charged With an 18W Power Bank?

Smaller laptops with lower power consumption will be more compatible with an 18W power bank because these power banks act as external batteries.

The types of laptops that an 18W power bank can charge will depend on the power consumption of the computer and the capacity of the power bank.

For example, laptops with low-voltage processors, such as Intel’s Y-series or U-series, or notebooks with lower wattage power adapters, will be more likely to be able to be charged with an 18W power bank.

Some examples of laptops you can charge with an 18W power bank include the MacBook Air, the Dell XPS 13, and the Lenovo ThinkPad X1 Carbon.

However, it’s worth noting that even with a compatible laptop, charging times will be longer than with the original charger. The portable charger’s capacity will also influence how long the computer takes to charge.

How Long Does It Take to Charge a Laptop Using an 18W Power Bank Fully?

If a laptop has a battery capacity of 50Wh and the power bank provides 18W, it would take around 2.8 hours to charge it fully. However, it could take significantly longer if the laptop has a larger battery capacity or requires more power.

Sometimes, an 18W power bank may not be able to charge a laptop at all, or it may only charge it to a certain amount before the battery pack dies because not all power banks are made to charge heavy batteries like those of laptops.

As a general rule of thumb, if an 18W power bank “does charge” a laptop, it would take longer than charging it using its original charger or a higher-wattage battery pack.

Before making a purchase, examine the power requirements of your specific laptop model and compare them to the output of the power bank you’re contemplating.

Are There Any Safety Concerns When Using an 18W Power Bank to Charge a Laptop?

There are a few safety concerns to keep in mind when using an 18W power bank to charge a laptop. One problem is that the power bank may not provide enough power to fully charge the laptop, which could lead to the computer shutting down unexpectedly or not performing optimally.

Additionally, suppose a USB power bank is designed for something other than charging laptops. In that case, it may not have the necessary protection circuits to ensure the safety of the charging process.

Another concern is that using an 18W power bank to charge a laptop could damage the rechargeable battery or other components if the power bank is not compatible with the laptop.

Additionally, it’s important to ensure that the power bank and the laptop are being used with the correct cables and connectors. Using the wrong type of cable or connector can result in damage to the device or the power bank.

Solution To Such Hazards

It’s always a good practice to check the laptop’s power requirements and compare it to the output of the power bank you are considering; make sure that the power bank is designed for charging laptops and use the correct cables and connectors.

Use an original or authentic charger for your laptop if possible. It’s also important to follow the manufacturer’s instructions and guidelines for using the power bank and charging your computer because the manual explains the specifics of your device better than any guide.

Can an 18W Power Bank Charge a Laptop While the Laptop Is in Use?

If the laptop uses less power than the power bank can supply, it will charge it while it is in use. However, the laptop uses more power than the portable charger can provide. In that case, the laptop will not charge and will drain the power bank’s rechargeable battery instead.

It’s important to note that charging a laptop while in use may not be the most efficient way to charge the computer. It can also lead to overheating and other issues. It’s always recommended to turn off the laptop or put it on sleep mode when charging it.

How Much Can an 18W Power Bank Charge a Laptop on a Single Charge?

If a laptop has a battery capacity of 50Wh and the power bank provides 18W, it could charge the laptop to around 36%. However, suppose the laptop has a larger battery capacity or requires more power. In that case, the 18W power bank may only be able to charge it a little.

An 18W power bank typically has a capacity of around 10,000 mAh to 20,000 mAh. So, for example, if the power bank has a total of 10,000mAh, it can charge a device with a 3,000mAh battery around 3.3 times. Still, if the device is a laptop that requires more power, it could charge less.

It’s important to remember that charging efficiency and the amount of charge a power bank can deliver to the device may vary depending on the device’s power requirements, the battery pack’s output, and other factors.

Are Any Specific Brands or Models of Power Banks Recommended for Charging Laptops?

Several brands and models of 18W power banks are specifically designed for charging laptops. Some popular examples include:

Anker PowerCore+ 26800 PD

This power bank has a high capacity of 26800mAh and supports fast charging up to 45W; it’s also equipped with USB-C Power Delivery technology that can charge laptops and other devices.

Belkin BOOST CHARGE Power Bank

This portable charger has an 18W output and a USB-C port that supports Power Delivery to charge laptops and other devices.

Aukey PB-Y13

This power bank has a capacity of 10000mAh and supports 18W Power Delivery for charging laptops and other devices.

RavPower PD Pioneer

This power bank has a capacity of 10000mAh and supports 18W Power Delivery for charging laptops and other devices.

USB Power banks aren’t meant to charge laptops fully; they’re meant to give your gadgets a brief power boost.

It is usually a good idea to compare the power requirements of your specific laptop model to the output of the power bank you are deciding to buy.

Can an 18W Power Bank Charge Other Devices in Addition to a Laptop?

Yes, an 18W power bank can charge other devices besides a laptop. Almost all power banks have multiple USB ports that can charge various devices, such as smartphones, tablets, portable speakers, and other USB-powered devices.

For example, if the power bank has a capacity of 10,000mAh, it can charge a device with a 3,000mAh battery around 3.3 times. But if the device is a laptop that requires more power, it could charge less.

In most cases, portable chargers are equipped with multiple ports; one is a USB-C port that you can use to charge laptops that support power delivery and other USB-C devices.

Is an 18W Power Bank Sufficient to Charge a Laptop, or Is a Higher-Wattage Power Bank Needed?

An 18W power bank may be capable of charging some laptops. Still, it may not be powerful enough to fully charge larger or more power-hungry models. We can also charge a laptop with 30w charger, so a power bank with greater power is a good choice for laptops.

For example, suppose a laptop’s rechargeable battery capacity is 50Wh, and the power bank produces 18W. In that case, it will take around 2.8 hours to charge the computer fully. However, it may take substantially longer if the laptop has a bigger battery capacity or requires more power.

That is why we recommend you use a power bank with a high capacity and wattage supporting fast charging up to 45W, such as Anker PowerCore+ 26800 PD. This power bank is powerful enough to cover charging for general laptops.

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FAQ

Q: Can 10,000mAh Charge a Laptop?

A: It depends on the specific model of the laptop and its power requirements. A 10,000mAh power bank may not be able to fully charge a laptop with a larger battery capacity or high power requirements. However, it can partially charge some laptops.

Q: Why Is My Power Bank Not Charging My Laptop?

A: The reason may be that the power bank does not provide enough power to charge the laptop, the power bank is not compatible with the laptop’s charging cable, or the laptop’s charging port is damaged.

Q: How to Charge My Laptop With a Power Bank Using Type-C Cable?

A: First, ensure that your power bank has a USB-C port and supports Power Delivery, then use the appropriate Type-C cable to connect the laptop to the portable charger.

Check the laptop’s manual or the manufacturer’s website to determine the power requirements and monitor the charging process. Turning off the laptop or putting it on sleep mode when charging it is recommended.