Anker vs Belkin Power Bank: Which 20,000 mAh for Travel?
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Anker vs Belkin power bank comes down to how each brand counts its watts. Both give you 20,000 mAh and a built-in USB-C cable, but Anker lists 87 W across three devices with up to 65 W from one port, while Belkin lists 45 W from one port and 24 W shared by two devices. We read both makers' pages and both Amazon listings on 9 October 2026 and went through what independent testers measured. Both brands have recalls on other models; neither model here is in the notices we read.
Quick answer
Checked on 9 October 2026. Pick the Anker 20K 87W if you charge a tablet or a laptop: it lists 65 W from one port, and testers measured it taking a 65 W recharge in under 90 minutes. Pick the Belkin 20K 45W if a phone, earbuds and a MacBook Air are your limit: Belkin lists 45 W from one port, a digital display and a 2-year warranty with a connected equipment warranty. A tester lists the Anker at 72 Wh and Belkin calls its bank TSA carry-on compliant, so both sit under the FAA's 100 Wh limit; carry either one in the cabin, never in a checked bag.
Both, with a buy button each
Anker Power Bank (20K, 87W, Built-In USB-C Cable)
Anker lists 65 W from one port, 6.2 x 2.9 x 1.0 in and 15.5 oz. Sold by AnkerDirect. Read more
Belkin 20K Power Bank 45W with Integrated USB-C Cable
Belkin lists 45 W from one port, 24 W shared across two devices and a digital display. Sold by Amazon.com. Read more
Where to go deeper
Anker vs UGREEN Power Bank: Which 25,000 mAh for Laptops?
The bigger, laptop-class comparison. Read more
Best Power Banks for Digital Nomads (2026 Guide)
More picks across sizes and prices. Read more
How we compared them
The NomadsToolsLab team read the Anker and Belkin product pages, Belkin's support page for this model, the FAA's power bank rules and the CPSC recall notices end to end on 9 October 2026, and checked both Amazon pages with a US address. What surprised us: how the two sell their watts. MobileReviewsEh, who drains and recharges banks on a test rig, says Anker's 87 W is a cumulative figure: a maximum of 65 W from the USB-C port or the cable plus 22.5 W from USB-A. Belkin's 45 W is a single-port figure that drops to 24 W when two devices are plugged in.
In his test the Anker gave back 53 Wh of its 72 Wh and recharged in under 90 minutes from a 65 W charger. His number one pick of 2025 was a different Belkin, the older three-port 65 W 20K bank, which also gave back 53 Wh but took up to four hours to recharge. The Breakdown With Luke, who bought the Anker himself, says everything he plugged in worked as it should and repeats the same warning: the 87 W is a total, not per port.
Our conclusion: pick by the largest single device you charge, then by display and warranty. Every number in the table comes from the makers' own pages and listings.
Anker vs Belkin at a glance
| Anker 20K 87W | Belkin 20K 45W | |
|---|---|---|
| Capacity (maker) | Anker 20K 87W: 20,000 mAh | Belkin 20K 45W: 20,000 mAh |
| Output from one port (maker) | Anker 20K 87W: Up to 65 W | Belkin 20K 45W: Up to 45 W, PPS supported |
| Shared output (maker) | Anker 20K 87W: 87 W across three devices | Belkin 20K 45W: 24 W for two devices, 22.5 W for three |
| USB-A port | Anker 20K 87W: 22.5 W (MobileReviewsEh) | Belkin 20K 45W: 18 W (Belkin listing) |
| Ports (maker) | Anker 20K 87W: Built-in USB-C cable, USB-C, USB-A | Belkin 20K 45W: Built-in USB-C cable, USB-C, USB-A |
| Display | Anker 20K 87W: Battery counter (testers) | Belkin 20K 45W: Digital display (maker) |
| Size (maker) | Anker 20K 87W: 6.2 x 2.9 x 1.0 in | Belkin 20K 45W: 5.4 x 3.0 x 1.2 in (136 x 76 x 30 mm) |
| Weight (maker) | Anker 20K 87W: 15.5 oz | Belkin 20K 45W: Not listed |
| Warranty | Anker 20K 87W: 18 months (Amazon listing) | Belkin 20K 45W: 2 years plus equipment warranty (Belkin) |
| Amazon, 9 Oct 2026 | Anker 20K 87W: In stock, AnkerDirect, 10K+ bought | Belkin 20K 45W: In stock, Amazon.com, 500+ bought |
Neither maker page we read prints a watt-hour figure. MobileReviewsEh lists the Anker at 72 Wh, and Belkin calls its bank TSA carry-on compliant. At the usual 3.6 to 3.7 V per cell, 20,000 mAh is roughly 72 to 74 Wh (our own arithmetic), under the FAA's 100 Wh limit.
1. Anker 20K 87W
Anker Power Bank (20K, 87W, Built-In USB-C Cable)
The Anker Power Bank (20K, 87W, Built-In USB-C Cable) is on Anker's site under the model code A1383. Anker's page headlines 87 W of power to share, a 65 W fast recharge, 20,000 mAh and a built-in USB-C cable, and its product image gives the size as 6.2 x 2.9 x 1.0 in and the weight as 15.5 oz. Anker's Amazon listing adds that one device can take up to 65 W, that the cable withstands over 10,000 bends, that a 14-inch MacBook Pro charges to 50% in under 40 minutes and that a full recharge takes 1.5 hours with a 65 W charger. It comes with an 18-month warranty.
On 9 October 2026 the listing showed In Stock with an Add to cart button, sold by AnkerDirect, with a 30-day refund or replacement and 10K+ bought in the past month. MobileReviewsEh points out that the 87 W is a cumulative output, with the single-port maximum at 65 W.
2. Belkin 20K 45W
Belkin 20K Power Bank 45W with Integrated USB-C Cable
Belkin sells this bank under two names: UltraCharge 20K Power Bank 45W with Display on its shop and BoostCharge 20K 45W with Integrated Cable and Display (BPB036) on its support page, so check the model on the box. The shop page lists 20K mAh, up to 45 W, three devices at once through the integrated USB-C cable, the USB-C port and the USB-A port, a braided integrated cable of 14.2 in (36 cm), a digital display and dimensions of 136 x 76 x 30 mm. The support page adds PPS support, sharing of up to 24 W for two devices and 22.5 W for three, pass-through charging and that it can charge a MacBook Air at up to 45 W. Warranty is 2 years plus Belkin's connected equipment warranty, which covers devices damaged by an electrical charge while connected to the bank.
On 9 October 2026 the Amazon listing showed In Stock with an Add to cart button, sold by Amazon.com, a 30-day refund or replacement and 500+ bought in the past month. The listing text gives the USB-A port as 18 W, the maximum input as 30 W and the pass-through as 15 W.
Recalls and flight rules
The US Consumer Product Safety Commission lists recalls for both brands. For Anker we read three: June 2025 (PowerCore 10000, model A1263, about 1,158,000 units sold from June 2016 to December 2022), September 2025 (models A1647, A1652, A1257, A1681 and A1689, about 481,000 units) and October 2024 (models A1642, A1647 and A1652, about 2,100 units). For Belkin we read the November 2025 recall (about 83,500 units: power banks BPB002 and PB0003 and a charging stand, MMA008). CPSC gives the same hazard each time: the lithium-ion battery can overheat. The Anker A1383 and the Belkin BPB036 are not in these notices, but check the model number on your own bank against the CPSC lists before you fly with an older one.
For the cabin, the FAA's PackSafe page (read on 9 October 2026) says spare lithium-ion batteries, power banks included, must go in carry-on baggage only. When a carry-on is checked at the gate, the power banks have to come out of the bag and stay with you in the cabin. The limit is 100 Wh per battery; with airline approval you may carry up to two spare batteries of 101 to 160 Wh. The FAA also says many airlines have stricter limits on how many power banks you can carry, so check your carrier. The terminals must be protected from short circuit, for example by leaving the bank in its packaging, a pouch or a case.
What testers measured
MobileReviewsEh reviewed the Anker 87 W bank alone in 2025 and again in a top-five list. Capacity is 20,000 mAh or 72 Wh, the cable and USB-C port give a maximum of 65 W and USB-A 22.5 W. It supports 5 A PPS, which he expects to suit laptops. At full discharge speed the pack stopped at 30% and he had to restart the test, a pattern he says he has noticed with Anker packs, but it was fully drained in the end and returned 53 Wh. It accepted a 65 W recharge and filled in under 90 minutes. It ran a little warmer than average and weighs about 420 g by his scale. He liked its value and says the status display, a plain number, is all you need.
The Breakdown With Luke bought the Anker himself in 2025. He says the build is good, the cable sits securely, and a 20,000 mAh bank gives about four to five full phone charges. He says the 65 W single-port limit means it can charge a 45 W Chromebook but not laptops that need 100 W or more.
For Belkin there is no independent test of the exact 45 W model in what we found. The Belkin MobileReviewsEh ranked first in 2025 was the three-port 65 W 20K bank, a different product: it pulled 53 Wh from 72 Wh, held voltage steady, and took almost four hours to recharge: he saw only up to 20 W going in against a 45 W maximum input. Belkin's page says the 45 W model charges from 0 to 50% in 22 minutes under the conditions in its footnote, which is Belkin's own claim.
Which one to pick
You charge a tablet or a 60 W laptop: the Anker, with 65 W from one port and a fast recharge. You mostly charge a phone and earbuds: either one; the Belkin's display and 2-year warranty are the extras. You travel with a MacBook Air: Belkin says its bank can charge one at up to 45 W; Anker's 65 W leaves more headroom. You fly often: both are 20,000 mAh banks; keep them in the cabin bag and check your airline's limit on the number of banks.
For bigger banks that run a laptop for hours, see our Anker vs UGREEN comparison and the best power banks guide. Packing for a carry-on only trip? Our carry-on packing guide and the digital nomad packing list show where a power bank fits.
Watch: both banks tested
Video by MobileReviewsEh. His description carries Amazon affiliate links, and he says he is a reviewer, not an influencer.
MobileReviewsEh drained and recharged more than twelve banks on a rig. Three Anker banks and a Belkin made his top five, including the Anker 20K 87 W in this guide, shown below. His Belkin pick is the older three-port 65 W model, not the 45 W bank in this guide.
Anker Power Bank (20K, 87W, Built-In USB-C Cable)
Video by The Breakdown With Luke. His description carries an Amazon affiliate link; he says he bought the bank himself.
The Breakdown With Luke goes through the Anker's design, capacity and the 65 W single-port limit. The bank is below.
Anker Power Bank (20K, 87W, Built-In USB-C Cable)
- Anker lists up to 65 W from one port and 87 W shared across three devices; Belkin lists up to 45 W from one port and 24 W shared across two.
- Both are 20,000 mAh with a built-in USB-C cable, a USB-C port and a USB-A port; Belkin adds a digital display and a 2-year warranty with an equipment warranty, Anker lists 18 months.
- MobileReviewsEh measured 53 Wh out of the Anker's 72 Wh and a recharge in under 90 minutes with a 65 W charger.
- The FAA allows power banks in carry-on bags only, up to 100 Wh each, and says airlines may be stricter.
- CPSC recalls exist for other Anker and Belkin models; the Anker A1383 and Belkin BPB036 are not in the notices we read.
- On 9 October 2026 both were in stock on Amazon with a buy button: 10K+ and 500+ bought in the past month.
FAQ
Is Anker or Belkin better for a power bank?
Anker lists more power from one port (65 W against 45 W), Belkin adds a digital display and a 2-year warranty. For tablets and laptops pick the Anker, for phones and earbuds either one works.
Can I take an Anker or Belkin power bank on a plane?
Yes, in your carry-on. The FAA says power banks must be in carry-on baggage only and are limited to 100 Wh each; airlines may be stricter on the number of banks, so check your carrier.
What does 87W mean on the Anker power bank?
It is a total across three ports. Both MobileReviewsEh and The Breakdown With Luke say a single port tops out at 65 W, and MobileReviewsEh puts the USB-A port at 22.5 W.
How many times will a 20,000 mAh power bank charge a phone?
The Breakdown With Luke says about four to five full charges for the Anker. Belkin's page says up to 114 hours of additional battery life for its 20K bank, a claim with its own conditions.
Have Anker or Belkin power banks been recalled?
Yes, other models of both have been, according to the US Consumer Product Safety Commission: Anker in October 2024, June 2025 and September 2025, Belkin in November 2025. The Anker A1383 and Belkin BPB036 were not on the lists we read; check your own model number.
Which power bank is better for a MacBook Air?
Belkin says its 45 W bank can charge a MacBook Air at up to 45 W. Anker's single port gives up to 65 W, which leaves more headroom for a MacBook Air or a 60 W laptop.
Affiliate disclosure. This post contains affiliate links. If you click and buy something, this site earns a small commission at no extra cost to you. Picks are based on published specs, independent tests and manufacturer information. As an Amazon Associate I earn from qualifying purchases. Read the full affiliate disclosure. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
Where to go next
Next read the Anker vs UGREEN power bank comparison for laptop-class banks and the best power banks guide. For the rest of your carry-on kit see the remote work gear guide and our travel comfort gear guide.
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