Never Miss Another Deal!

No Fuss Deal Surprise Me

Anker Power Bank Review: Laptop-Capable Power Bank Worth the Weight

Anker's 20,000mAh power bank pairs a genuinely large battery with 87 watts of USB Power Delivery, split across three devices at once or sent to a single one at up to 65 watts - enough to charge a laptop, not just a phone. A built-in USB-C cable means the one cord most likely to be needed is always attached, and the whole thing recharges to full in about 90 minutes on a 65W charger of its own. The tradeoff for that much capacity and output is weight: at nearly a pound, it is heavier than most phone-only banks, and it is the single complaint that shows up most in the feedback.

By ZappyZep, Tech Editor Published September 27, 2026 Updated September 29, 2026
4.5Our score
Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black) Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black), view 2 Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black), view 3 Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black), view 4 Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black), view 5 Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black), view 6 Anker Power Bank, 20,000mAh Travel Essential, Built-in USB-C Cable(Black), view 7
Product gallery, 7 images
$65.99 Check price on Amazon

Prices shown were correct on September 29, 2026 and change frequently.

TL;DRThe Short Answer: Is the Anker 20,000mAh Power Bank Worth It?

Twenty thousand milliamp-hours and 87 watts of USB-C output put this in a different class from a phone-only power bank: it tops up a laptop as easily as a phone, and the built-in cable refills the bank in about 90 minutes given a fast enough charger. What that capacity brings is real weight, close to a pound, the theme feedback returns to again and again. The single built-in USB-C cable covers most current phones and many laptops; Lightning or Micro-USB devices need their own cable. For laptop-class charging in a travel bag, this is built for the job.

NoFussDeal rates the Anker 20,000mAh Power Bank 4.5 out of 5 at $65.99. Last updated September 29, 2026.

What Stands Out

  1. A 20,000mAh cell delivers up to 87 watts total, or up to 65 watts to a single device, enough to fast-charge a laptop as well as a phone.
  2. A built-in USB-C cable, rated for more than 10,000 bends, means the most-needed cord is always attached.
  3. Recharges the bank itself to full in about 90 minutes when plugged into a 65 watt USB-C charger.
  4. Its 87 watt-hour rating sits just under the 100Wh airline carry-on limit, so it travels without needing a special allowance.
  5. Weighs 15.5 ounces and measures 6.2 x 2.9 x 1.0 inches, noticeably heavier and thicker than a phone-only power bank.
  6. Backed by an 18-month warranty and customer support.

Strengths and Drawbacks

What works

  • 87 watts of total output, up to 65 watts to a single device, is enough to fast-charge a laptop, not just a phone.
  • The 20,000mAh cell delivers roughly four to five phone charges before it needs a recharge itself.
  • The built-in USB-C cable means the most commonly needed cord is always attached and rated for over 10,000 bends.
  • Recharges to full in about 90 minutes on a 65 watt charger, far faster than a typical multi-cable bank.
  • At 87 watt-hours, it stays just under the airline carry-on limit despite its high capacity.
  • Backed by an 18-month warranty and customer support.

What does not

  • Weight is the most consistently criticized theme in the feedback; at 15.5 ounces, it is noticeably heavier than a phone-only bank.
  • Only one cable, USB-C, is built in, so Lightning or Micro-USB devices need a separate cable.
  • A recharge from a lower-wattage charger takes considerably longer than the roughly 90 minutes a 65W charger delivers.
  • A small share of units leave a cable connected without a device attached briefly blocking that port until reset.
  • At 6.2 x 2.9 x 1.0 inches, it is bulkier in a pocket than a slimmer, lower-capacity bank.

Features in Depth

01

87W Power Delivery

Total Output 87W Single-Device Output Up to 65W Simultaneous Devices Up to 3

The headline spec here is 87 watts of USB-C Power Delivery, shared across up to three devices at once or delivered to a single one at up to 65 watts. That is enough wattage to fast-charge a laptop rather than just a phone: a 14-inch MacBook Pro reaches 50 percent in under 40 minutes on this bank, and an iPhone 15 Pro reaches 58 percent in half an hour using the built-in cable. For anyone who travels with a laptop and a phone and wants one bank to cover both, 87 watts is the number that makes that possible - a typical phone-focused power bank tops out well below the wattage a laptop charger needs, so this is built for a genuinely different use case.

$65.99 4.5/5 Check price
02

20,000mAh Capacity

Capacity 20,000mAh Rated Energy 87Wh Weight 15.5 oz

Twenty thousand milliamp-hours is roughly double the capacity of a typical everyday power bank, translating to something closer to four or five full phone charges before the bank itself needs a recharge, based on typical use. It is rated at 87 watt-hours specifically, just under the 100Wh limit airlines allow in carry-on luggage without prior approval, so the extra capacity does not come at the cost of being able to travel with it. The size that capacity demands is real: at 6.2 by 2.9 by 1.0 inches and 15.5 ounces, it is noticeably larger and heavier than a phone-only bank, the one consistently negative theme in the feedback and the direct tradeoff for carrying this much power in one unit.

$65.99 4.5/5 Check price
03

Built-In USB-C Cable

Built-In Cable 1 (USB-C) Cable Durability 10,000+ bend rated Full Recharge Time ~1.5 hours on 65W charger

A single USB-C cable is built directly into the case, rated to withstand more than 10,000 bends, so the cable most current phones, tablets and laptops actually need is never left behind. Using that built-in cable to fast-charge devices, or to recharge the bank itself from a 65 watt charger, brings the whole 20,000mAh cell back to full in about 90 minutes - a fraction of the time a smaller, multi-cable bank can take to refill. The design tradeoff against a bank with several built-in cables is coverage: this one cable handles USB-C directly, while an older Lightning or Micro-USB device needs its own separate cable, worth knowing if older hardware needs charging alongside newer USB-C devices.

$65.99 4.5/5 Check price
04

Build, Ports and Warranty

Warranty 18 months Ports USB-C output, USB-A output, built-in USB-C cable Dimensions 6.2 x 2.9 x 1.0 in

Beyond the built-in cable, the bank carries additional USB-C and USB-A ports, so a laptop, a phone and a third device can all draw power at once, up to the shared 87 watt ceiling. A specific quirk is worth knowing: a cable left plugged into the bank but not connected to a device can briefly stop that port from charging anything until it is unplugged and reconnected, a minor workflow issue rather than a charging failure. It carries an 18-month warranty and customer support, a shorter term than charmast's 3-year policy but standard for the category, and the unit ships with a welcome guide covering setup and care.

$65.99 4.5/5 Check price

How We Scored It

Based on
The manufacturer's published specifications and the product's live Amazon listing.
Owner rating
4.6 out of 5 on Amazon, recorded September 29, 2026
How we score
We score each thing that comes up most in owner feedback on the Anker Power Bank. Eight things come up most in owner feedback: five draw praise, two split opinion and one draws mostly complaints. Its ratings average 4.6 stars (81% five stars, 8% four, 4% three and 7% one or two), so every score starts at 92, that average on a 100 point scale. Where opinion is split, we take off 6. Where it draws mostly complaints, we take off 12. Then we read eight owner reviews in full (every one we found gave it four or five stars) and move the score up to 5 points either way depending on how the owners who mention it rated the product. Our overall score starts from the same 4.6 star average and loses 0.1 for each thing that draws mostly complaints, with 0.1 more when at least a tenth of ratings are one star, never more than 0.3 in all. Here that takes off 0.1, which gives 4.5. Read our editorial standards

Performance

Two of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Portability

Two of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Size

Four of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

Charging Speed

All of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 11% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 86: we started at 92 and took off 6 because opini…

Read the full note (412 characters)

All of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 11% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 86: we started at 92 and took off 6 because opinion is split.

86Mixed

Battery Life

All of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 11% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 86: we started at 92 and took off 6 because opini…

Read the full note (412 characters)

All of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 11% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 86: we started at 92 and took off 6 because opinion is split.

86Mixed

Weight

Three of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 11% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 80: we started at 92 and took off 12 because it…

Read the full note (425 characters)

Three of the eight owner reviews we read mention it, and those owners gave the product four or five stars, so the complaints come from the wider group of buyers. None of the reviews we read say what goes wrong, so this score rests on the buyer ratings. 11% of all ratings are three stars or fewer, which is where complaints like this usually sit. Score 80: we started at 92 and took off 12 because it draws mostly complaints.

80Needs Improvement

Owner Satisfaction

81% of ratings are five stars and 8% are four. 4% are three stars and 7% are one or two. The spread skews positive, but enough ratings sit low that the drawbacks below are worth reading. Score 92: its 4.6 star average on a 100 point scale.

92Positive

Value for Money

Three of the eight owner reviews we read mention it. All of them gave the product four or five stars. Score 97: we started at 92 and added 5 because the owner reviews that mention it are positive.

97Positive

What Buyers Say

Performance draws the strongest and most consistent praise, with reliable, fast charging across phones, tablets and even laptops from the built-in cable. Portability, value for money, size and the built-in cable itself all lean clearly positive too. Charging speed and battery life split opinion, generally between fast and dependable for most units and slower than expected for a smaller share. Weight is the one theme that draws mostly negative feedback, tracking directly with the tradeoff of packing 20,000mAh and 87 watts of output into one unit.

Based on 9,941 Amazon customer ratings, averaging 4.6 out of 5, recorded 26 September 2026. See the reviews on Amazon

5 stars 81%
4 stars 8%
3 stars 4%
2 stars 2%
1 stars 5%
★★★★★

A Reliable Travel Companion with Convenient Built-In USB-C Cable

After using the Anker Power Bank 20,000mAh with the built-in USB-C cable, I found it to be an excellent choice for reliable portable power. The integrated cable is one of its most convenient… Read it on Amazon
Jesus · August 3, 2026 · Verified
★★★★★

Excellent power bank for travel, hiking, and everyday use

This power bank has been one of the best purchases I've made. I originally bought it for backpacking the Devils Dome Loop Trail so I could keep my phone and headlamp charged, and it worked f… Read it on Amazon
Alex Reeves · July 17, 2026 · Verified
★★★★★

Lots of extra power for charges, and everything just worked intuitively. Excellent design.

Just from doing multiple charges on phones and tablets, I'd have to say this is one of the few power banks out there that is not a total marketing lie for how much capacity it has. 20 AH see… Read it on Amazon
Bruce Warrington · August 25, 2026 · Verified
★★★★★

Best power bank on the market hands down

Really love this portable power bank. I use it everyday for school to charge my phone, watch, and Macbook. It has enough capacity to charge everything and does it really fast. Use the built … Read it on Amazon
Nathan · July 8, 2026 · Verified
★★★★★

Excellent Battery Bank

I’ve been using an older pack for a while for work but decided to find an upgrade. This has so far been perfect, I charged it to 99%, 2% was used to fully recharge Airpods Pro 2, and 20% was… Read it on Amazon
Cristian · August 14, 2026 · Verified
★★★★★

The King

The Power bank is optimal. Took this on vacation with the family and it can charge four Flagship phones with Ultra Fast charging with power left to spare. It's just under the TSA limit for m… Read it on Amazon
Min · August 3, 2026 · Verified

Setting It Up

  1. Charge it fully before first use

    Connect a USB-C charger, ideally rated 65 watts or higher, to bring the 20,000mAh cell to full in about 90 minutes. A lower-wattage charger takes noticeably longer.

  2. Use the built-in cable for USB-C devices

    The built-in USB-C cable covers most current phones, tablets and many laptops directly, so there is nothing extra to pack for those devices.

  3. Bring a separate cable for older devices

    Lightning or Micro-USB devices need a separate cable, since only one cable, USB-C, is built into the case.

  4. Check the wattage for laptop charging

    A single device draws up to 65 watts, which covers most laptop charging needs. Splitting power across two or three devices at once reduces what each receives, up to the shared 87 watt total.

  5. Unplug an unused cable

    If a cable is left connected to the bank without a device on the other end, unplug and reconnect it before expecting that port to charge again.

Common Questions

Can it charge a laptop?

Yes. A single device can draw up to 65 watts, which covers most USB-C laptop charging, and the bank can deliver up to 87 watts total across as many as three devices at once.

How many phone charges does the 20,000mAh battery give me?

Based on typical use, roughly four to five full phone charges before the bank itself needs a recharge.

How long does it take to recharge?

About 90 minutes to reach full charge when using a 65 watt USB-C charger. A lower-wattage charger takes noticeably longer.

Can I bring it on a flight?

Yes. It is rated at 87 watt-hours, just under the 100Wh limit airlines allow in carry-on luggage without special approval.

Does it work with Lightning or Micro-USB devices?

The built-in cable is USB-C only, so a Lightning or Micro-USB device needs its own separate cable to charge from this bank.

How heavy is it?

15.5 ounces, measuring 6.2 by 2.9 by 1.0 inches. It is noticeably heavier than a phone-only power bank, the tradeoff for its capacity and output.

On Video

6 videos

Which Anker Power Bank Should You Actually Buy?

Adam Talks Tech
All videos
  1. Which Anker Power Bank Should You Actually Buy? Adam Talks Tech
  2. The Best Anker Power Banks: Prime vs 737 and Laptop Power Banks Compared Adam Talks Tech
  3. Anker Nano 45 Watt with Retractable Cord Review: The Tiny Power Bank Adam Talks Tech
  4. Best Power Bank of 2025: Anker 165 Watt 25K Power Bank with Retractable & Built in Cable Review Adam Talks Tech
  5. Usability vs. Performance. Which Would You Pick? Anker 25,000mAh 300W Laptop Power Bank Review MobileReviewsEh
  6. What's So Special about the Anker Prime 300 Watt Power Bank? Adam Talks Tech

The Verdict

4.5Out of 5

For anyone who needs real charging capacity rather than just a phone top-up, this delivers on the number that matters: 87 watts of USB-C output, up to 65 to a single device, genuinely enough to fast-charge a laptop alongside a phone. The 20,000mAh cell holds roughly four to five phone charges, and the built-in USB-C cable recharges the whole bank in about 90 minutes given a fast enough charger of its own - a fraction of the time a smaller, multi-cable bank needs. The tradeoff is weight: at 15.5 ounces, this is the heaviest complaint in the feedback, the direct cost of packing that much capacity and wattage into one case. A single built-in cable also means older Lightning or Micro-USB devices need their own cord, unlike a bank built around cable variety. For travelers and anyone charging a laptop on the go, the capacity and speed justify the extra weight; for someone who only ever charges a phone, it is more bank than needed.

Who should buy it

  • Laptop and phone travelers
  • Anyone who wants one power bank capable of fast-charging a laptop as well as a phone.
  • Frequent travelers who want 20,000mAh of capacity that still clears the airline carry-on limit.
  • Buyers who value a fast recharge over carrying several built-in cables.

Who should skip it

  • Anyone who only charges a phone and does not need laptop-class wattage.
  • Buyers who want the lightest possible everyday carry, since this is noticeably heavier than a phone-only bank.
  • Households with several older Lightning or Micro-USB devices, since only one built-in cable, USB-C, is included.

A genuinely capable travel power bank if laptop-class charging is needed, worth carrying the extra weight for that capability.

Check price on Amazon

More Reviews

Samsung 4.3

Samsung Electronics Qi Wireless Charger and UV Sanitizer - US Version Re…

 OtterBox 4.6

OtterBox iPhone 11 Defender Series Case - Black, Rugged & Durable, with …

 INIU 4.0

INIU Wireless Charger, 15W Fast Qi Certified Wireless Charging Station w…