Anker 737 Power Bank Review
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Overview
The Anker 737 Power Bank is the most capable portable charger you can buy in 2026. With a massive 24,000mAh capacity, 140W maximum output, and the ability to charge laptops, tablets, and phones simultaneously, it's the ultimate travel companion. The built-in smart display shows real-time power delivery, remaining capacity, and estimated charge time — no more guessing games.
Key Features
- 24,000mAh / 86.4Wh capacity — charges iPhone 16 Pro 5+ times
- 140W maximum output via USB-C (enough to fast-charge MacBook Pro)
- Smart digital display showing watts, capacity %, and charge time
- 3 ports: 2x USB-C + 1x USB-A for charging multiple devices simultaneously
- PowerIQ 3.0 with GaN technology for efficient power delivery
- Pass-through charging — charge the power bank while it charges your devices
Pros & Cons
Pros
- • 140W output can fast-charge MacBooks and laptops — rare for a power bank
- • Smart display is genuinely useful — shows exact wattage and time remaining
- • 24,000mAh handles a full weekend of phone charging easily
- • Three ports let you charge phone, tablet, and earbuds simultaneously
- • GaN technology keeps it relatively compact for its capacity
- • Anker's 24-month warranty and excellent customer support
Cons
- • Heavy at 1.4 lbs (640g) — noticeably weighty in a bag
- • At $109.99, it's premium-priced for a power bank
- • Bulky dimensions — doesn't fit in jeans pockets
- • 140W output only from single USB-C port — drops when using multiple ports
- • Takes 1.5 hours to fully recharge (with 140W wall charger, sold separately)
Who It's Best For
Frequent travelers, remote workers, digital nomads, and anyone who needs to charge laptops on the go. Essential for long flights, camping trips, or conferences where outlets are scarce.
Specifications
| Capacity | 24,000mAh / 86.4Wh |
| Max Output | 140W (single USB-C) |
| Ports | 2x USB-C (140W + 100W), 1x USB-A (18W) |
| Input | 140W USB-C |
| Display | LED smart display (watts, %, time) |
| Weight | 640g / 1.41 lbs |
| Dimensions | 155.8 x 54.6 x 49.5mm |
Detailed Analysis
The Anker 737 Power Bank represents the current pinnacle of portable charging technology, and it starts with a specification that sets it apart from 99% of the market: 140W USB-C output. That's enough to fast-charge a MacBook Pro 16", a Dell XPS 15, or any USB-C laptop at near-wall-charger speeds. Most competing power banks top out at 65W, which makes the 737 genuinely unique.
In real-world testing, we charged a MacBook Air M3 from 20% to 80% in about 40 minutes using the primary USB-C port — impressively close to wall charger performance. An iPhone 16 Pro charged from 0 to 50% in roughly 25 minutes. The 24,000mAh capacity provided 5.2 full charges of an iPhone 16 Pro, 3.5 charges of an iPhone 16 Pro Max, or approximately 1.2 charges of a MacBook Air M3.
The smart digital display is one of those features you didn't know you needed until you have it. It shows: current output wattage per port, remaining battery percentage, and estimated time to empty (or to full when charging the bank itself). No more pressing a button and counting LED dots — you get precise information at a glance.
The three-port setup provides excellent flexibility. Port 1 (USB-C) delivers up to 140W, Port 2 (USB-C) up to 100W, and Port 3 (USB-A) up to 18W. When using multiple ports simultaneously, the power is distributed intelligently — for example, using both USB-C ports drops the maximum to about 100W + 40W. The USB-A port is perfect for earbuds, smartwatches, or older devices.
GaN (Gallium Nitride) technology allows Anker to pack this capacity into a reasonably compact form factor. That said, "compact" is relative — at 640g (1.41 lbs), the 737 is about twice the weight of a typical 10,000mAh power bank. It's shaped like a thick candy bar and doesn't fit in pockets. This is a bag-carried power bank, not a pocket one.
Pass-through charging is fully supported and works well. Plug the 737 into a wall outlet, connect your phone to it, and both charge simultaneously. This is incredibly convenient in hotel rooms or airports where outlet space is limited.
Charging the bank itself takes about 1.5 hours with a 140W wall charger (sold separately) or about 2.5 hours with a standard 30W charger. For a 24,000mAh battery, that's remarkably fast.
The 86.4Wh capacity is worth noting for air travel. The TSA limit for carry-on lithium batteries is 100Wh, so the 737 is well within the allowed range. We flew with it multiple times without any issues.
Compared to alternatives: the Anker 537 (PowerCore 24K, $59.99) has the same capacity but only 65W output and no display. The Baseus Blade 2 ($129.99) offers 140W but only 20,000mAh in a slimmer form factor. The Ugreen 145W ($99.99) is the closest competitor with similar specs at a lower price, but Anker's display, warranty, and build quality justify the premium.
For laptop users who travel frequently, the Anker 737 is a game-changer. The ability to charge your MacBook, phone, and earbuds simultaneously from a single portable device eliminates outlet anxiety entirely.
The Verdict
The Anker 737 Power Bank is the best portable charger for power users in 2026. Its 140W output charges laptops at near-wall-charger speeds, the 24,000mAh capacity handles a full weekend away from outlets, and the smart display removes all charging guesswork. It's heavy and premium-priced, but for travelers and remote workers, it's worth every penny. If you only need phone charging, save money with the Anker 537. But if your laptop needs to come along, the 737 is unmatched.
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