Anker 25K Laptop Power Bank Review: 165W Output
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By GadgetsDiary Editorial Team
Updated November 9, 2026
Disclosure: GadgetsDiary earns a commission from qualifying purchases made through links on this page. Commissions do not affect how products are ranked. See our Affiliate Disclosure and How We Review pages. Safety: Power banks contain lithium-ion cells. Use the cables the manufacturer supplies or recommends, keep the unit away from heat, and follow the manual.
The Anker 25,000mAh 165W Laptop Power Bank is a large-capacity bank aimed at people who charge a laptop and a phone away from an outlet. It combines a 25,000mAh battery with three USB-C connections rated up to 100W each and two built-in cables, which sets it apart from banks that rely on a separate cable.
This review is based on the manufacturer’s listing and specifications. It is meant for remote workers, students and frequent travelers who are deciding whether built-in cables and high total output are worth a larger body. See more options in our Laptop Power Banks category.
Our Verdict
The strongest point of the Anker 25,000mAh 165W Laptop Power Bank is its output: the listing gives a 165W total with up to 100W on each of three USB-C connections, so a laptop and a second device can charge at once. The built-in cables also mean one less item to pack.
The main trade-off is that the cables cannot be swapped if one fails, and the listed depth of 1.93 inches makes it thicker than many slim banks. It suits someone who travels with a laptop and wants a single, self-contained charger. If you only charge a phone, a smaller bank is a better fit.
Anker Laptop Power Bank, 25,000mAh Travel
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Anker |
| Type | Laptop power bank with built-in cables |
| Capacity | 25,000mAh |
| Total output | 165W |
| Per-port output | Up to 100W on each of three USB-C connections |
| Ports | Two built-in USB-C cables, one USB-C port, one USB-A port |
| Dimensions | 6.18 x 2.13 x 1.93 inches |
| Airline | Manufacturer states it complies with 100Wh airline restrictions |
| Warranty | 18 months |
Capacity and Output
The listing gives a 25,000mAh capacity and a 165W total output, with up to 100W from each of three USB-C connections. Those connections are the two built-in cables and a USB-C port, and there is also one USB-A port, so four devices can be connected at once according to the listing.
A 100W USB-C connection matches the charger rating of many laptops, which is the main reason this bank is aimed at laptop users. The listing does not give an output figure for the USB-A port, so check the manual before connecting a device that needs a specific rating. Total output is a combined figure, so charging several devices at once may reduce what each receives.
Charging and Setup
The listing says the bank recharges quickly when used with a charger rated at 100W or higher. It does not give a recharge time, so we cannot state one, and a lower-rated charger will be slower.
Two USB-C cables are built in: one extends up to 2.3 feet and is rated for 20,000 retractions, and a shorter 0.98 foot cable doubles as a carrying strap and is rated for more than 20,000 bends. The box includes a protective pouch and a user manual. Follow the manual for safe use and storage, and use a charger that meets the stated rating, since a lower-rated accessory limits speed.
Build, Size and Portability
The listed dimensions are 6.18 x 2.13 x 1.93 inches. The listing states a weight that looks inconsistent with a 25,000mAh bank, so check the weight on the product page before you rely on it for packing. Because the listing gives no usable weight, factor in the thickness when deciding whether it fits your bag.
Anker states that the bank complies with 100Wh airline restrictions and is carry-on friendly. Airline rules depend on the watt-hour rating printed on the unit, so confirm it and your airline’s policy before you fly. The listing gives an 18-month warranty.
Features and Compatibility
The built-in cables are the defining feature, and the listing describes them as a way to charge on the move without carrying extra cables. A USB-A port is included for older accessories, though the listing gives no output rating for it, so treat it as suited to small devices until you confirm in the manual.
The listing names iPhone 17 series phones and MacBook models as compatible examples. It does not list every supported laptop, so compare your laptop’s charger rating with the 100W per-port figure.
Pros and Cons
| Pros | Cons |
|---|---|
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Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
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Final Verdict
The Anker 25,000mAh 165W Laptop Power Bank offers a high total output and built-in cables for a laptop and a phone, with a stated 18-month warranty. Its compromise is a thicker body and cables that cannot be replaced. It suits travelers and remote workers who value convenience over size, and it is less suited to anyone who wants the thinnest possible bank. Confirm the specifications, including the weight, on the product page before buying. See the Anker 25,000mAh 165W Laptop Power Bank on Amazon.
Frequently Asked Questions
Can the Anker 25,000mAh 165W Laptop Power Bank charge a laptop?
The listing gives up to 100W on each of three USB-C connections, which suits many laptops. Check your laptop’s original charger rating and make sure it does not exceed 100W. A lower rating charges more slowly or only while the laptop is idle. The listing names MacBook models among the compatible devices, but it does not list every laptop.
Does it have built-in cables?
Yes. The listing describes two built-in USB-C cables, one retractable up to 2.3 feet and a shorter strap-style cable. It also has a USB-C port and a USB-A port. Because the cables are built in, they cannot be swapped, so handle them with care.
Can I take it on a plane?
Anker states that it complies with 100Wh airline restrictions and is carry-on friendly. Airlines set limits by watt-hour rating, so check the rating on the unit and your airline’s current policy. Keep it in your cabin bag.
How many devices can it charge at once?
The listing says it can charge four devices at once using the two built-in cables, the USB-C port and the USB-A port. The 165W figure is a total, so the output per device depends on how many are connected. Check the manual before connecting two high-power devices together.
About the author
The GadgetsDiary editorial team compares portable power and charging products using manufacturer specifications and Amazon listing data. Read how we choose and rank products on our How We Review and Editorial Policy pages.