Home/Universal/Power Banks/Anker 737 Power Bank (140W 24K)
Don’t buy the Anker 737 to charge your phone. It’ll do that, of course, but what you’re really paying for is 140W over USB-C, which is enough to fast-charge a MacBook Pro from a battery in your bag.
Add 24,000mAh of capacity and a screen that tells you exactly how much is left, and you have a proper portable laptop charger. It also weighs about 630g. You’ll know it’s there.
Reviewed by the Tiny Tech Box team
Version reviewed: Anker 737 Power Bank (PowerCore 24K), 140W 24,000mAh 3-port with smart display · ASIN B09VPHVT2Z · Amazon US listing · Anker model A1289.
One-sentence verdict: Buy it if you really do need to charge a laptop away from an outlet and you’re willing to carry a heavy bank to do it; skip it if you only charge a phone, want something light, or expect a $109.99 battery to last a decade.
140W and 24,000mAh — a genuine laptop bank, and it weighs like one.
Image source: Amazon.com
| Best for | People who genuinely need to charge a laptop away from an outlet — travel, field work, long flights — and will carry a heavy bank to do it. |
| Not ideal for | Anyone who only charges a phone, wants something light, or expects a $109.99 bank to last a decade. |
| Current price | $109.99 on Amazon |
| Price checked | Nov 1, 2026 |
| Version reviewed | Anker 737 Power Bank (PowerCore 24K) · model A1289 · ASIN B09VPHVT2Z · Amazon US |
It’s a dense black brick with a small screen, two USB-C ports and one USB-A port, and nearly all of that weight is battery and GaN electronics. It feels serious. The screen is small but easy to read, and it shows real numbers.
Build quality is good. The worry is a recurring set of owner reports of the bank degrading or dying after a little over a year, and even if it only happens to some, that’s a short life for something that costs this much.
Plug a laptop or a phone into a USB-C port and the screen shows the wattage going out and roughly how long the battery will last at that rate. To recharge the bank itself, use a capable USB-C wall charger and you’ll get the fast refill, about 70% in half an hour.
The headline number delivers. At 140W it fast-charges a MacBook Pro, and 24,000mAh gets you a full laptop charge with enough left over to top up a phone or two.
Heat is monitored and shown on the display, and recharging is quick for a bank this size. Plug three devices in and they share the total output between them, so don’t expect 140W to the laptop while a phone and earbuds are charging too.
Works with:
Not compatible:
Most units keep going for years, but a recurring minority of owners report degradation or outright failure after roughly 16 months, and at this price that hurts. The 24-month warranty covers that window, at least, and Anker’s support team is generally quick to respond.
At $109.99, it’s priced as a premium laptop bank, which is exactly what it is. Compared with buying a smaller bank and a separate high-wattage wall charger, the price isn’t unreasonable for what it can do.
Everything depends on one question. Do you need 140W laptop charging away from a wall socket? If you do, few banks do it this cleanly. If you don’t, you’re paying several times more than you need to for power you’ll never use, and those reports of failures at around 16 months sting more at this price. We think it’s fairly priced under about $90.
4.4 ★ from 17,508 Amazon ratings · price checked Nov 1, 2026
Price and availability may change after the date shown.
| Product | Best for | Key advantage | Main drawback | Price |
|---|---|---|---|---|
| Anker 737 Power Bank (140W 24K) (this bank) | Fast-charging a laptop away from an outlet | 140W, 24,000mAh, smart display, 24-month warranty | Heavy, $109.99, some failures after ~16 months | $109.99 |
| UGREEN Nexode 20,000mAh 45W | Most people who touch a laptop occasionally | Keeps a MacBook Air alive; built-in cable; half the price | 45W not 140W; will not fast-charge a MacBook Pro | $34.99 |
| Anker 10,000mAh 30W Power Bank | Phone-only everyday carry | Pocketable, built-in cable, $25.99 | No laptop charging | $25.99 |
Unless your laptop really needs the full 140W, the UGREEN Nexode 20K keeps a laptop alive for about half the price and half the weight. If you only ever charge a phone, get the Anker 10K.
As a portable laptop charger, the Anker 737 is the real deal. It fast-charges a MacBook Pro over USB-C instead of trickling power into it, the 24,000mAh battery handles a full laptop charge with phone top-ups to spare, and the screen keeps you honest about what’s left on a long travel day. It refills quickly and has a 24-month warranty. More than 17,000 Amazon ratings average out at 4.4 stars.
You pay for all that in weight, money and some doubt about longevity. It’s around 630g, it costs $109.99, and a recurring minority of owners say theirs degraded after a little over a year. If you truly need 140W on the move, it earns its place in your bag. If you don’t, a 45W bank keeps a laptop alive for half the price and half the weight.
| Category | Score |
|---|---|
| Design — dense, serious, useful display; heavy by necessity | 4 / 5 |
| Value — among the most expensive here; some failures after ~16 months sting | 3 / 5 |
| Performance — 140W genuinely fast-charges a laptop; big capacity | 4 / 5 |
| Build & Durability — mostly solid; a recurring minority fail after ~16 months; 24-month warranty | 3 / 5 |
| Compatibility & Ease of Use — laptops, phones, tablets; airline-friendly; not for light carry | 4 / 5 |
| Overall | 3.6 / 5 · Would Buy |
The overall score is the average of the five aspects above. How we score.
| Brand / line | Anker — 737 Power Bank (PowerCore 24K), model A1289 |
| Capacity | 24,000mAh (about 87Wh) |
| Output | Up to 140W via USB-C, 18W via USB-A; 2 x USB-C, 1 x USB-A |
| Recharge time | To about 70% in 30 minutes with a suitable adapter (Anker) |
| Display | Smart digital display: wattage in/out, remaining percentage, estimated time |
| Technology | GaN charging, PowerIQ 4.0, ActiveShield 2.0 temperature monitoring (Anker) |
| Dimensions | About 6.1 x 2.1 x 1.9 inches (Anker) |
| Weight | About 22 oz / 630 g (Anker) |
| Colors | Black |
| Warranty | Anker 24-month warranty |
| ASIN | B09VPHVT2Z |
| Manufacturer | Anker |
Figures marked “Anker” are the manufacturer’s published claims. “N/A” means the value is not listed on the Amazon listing or Anker’s product page.
Yes. It puts out up to 140W over USB-C, which fast-charges a MacBook Pro.
About 22 oz, or 630g, so you’ll notice it in a bag.
A lot. 24,000mAh is a full laptop charge plus several phone top-ups, or many phone charges on their own.
A recurring minority of owners report it degrading or failing after roughly 16 months. That’s the main durability concern, and the 24-month warranty covers it.
Yes. At about 87Wh, it’s under the 100Wh limit for airline carry-on.
If you need 140W laptop charging on the move, yes. If you only charge a phone, a $30–$46 bank is the smarter buy.
Every pick links to its full five-aspect review.
Prices and availability are accurate as of the date shown and are subject to change. The price and availability displayed on Amazon at the time of purchase will apply.
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Sources: Amazon product listing (ASIN B09VPHVT2Z), read Aug 26, 2026 · Anker 737 Power Bank (PowerCore 24K) product and support pages (anker.com) for output, recharge time, dimensions and weight · retailer listings (cross-check). Figures attributed to Anker are the manufacturer’s published claims; the rating, price and buyer feedback are from the live Amazon listing on the date shown.
Disclosure: As an Amazon Associate, Tiny Tech Box earns from qualifying purchases. Recommendations are based on our own research and scoring, described in full on our How We Score page.