Anker 737 Power Bank Review: The Ultimate Portable Charger for 2026

Portable power banks have become essential gear for anyone who spends time away from outlets. After two weeks of testing the Anker 737 Power Bank as my daily carry, I can confidently say this is one of the most capable portable chargers I've ever used—but it comes with trade-offs worth considering.

First Impressions and Build Quality

The Anker 737 makes an immediate impression when you pick it up. At 24,000mAh capacity, this isn't a pocket-sized device. It's substantial, weighing approximately 630 grams and measuring about the size of a small paperback book. If you're expecting something you can forget is in your pocket, this isn't it.

Construction and Materials

Anker has used a textured polycarbonate shell that feels premium without being slippery. The matte finish resists fingerprints admirably, and after two weeks in my bag, the only signs of wear are minor scratches around the ports—unavoidable with regular use.

The edges are rounded enough to be comfortable in hand but flat enough to stand upright on a desk. This seems like a small detail, but it matters when you're using the power bank while working.

Port Layout

The 737 features three ports:

• Two USB-C ports (one input/output, one output only)
• One USB-A port

The dual USB-C design is forward-thinking. Being able to charge the power bank and a device simultaneously through USB-C is convenient. The inclusion of USB-A maintains compatibility with older cables and devices—a practical decision.

Display and Interface

A small LED display shows the remaining battery percentage and current power flow. This is infinitely more useful than the vague four-LED indicators on cheaper power banks. Knowing exactly how much juice remains removes the guesswork from travel planning.

The display activates with a button press and dims after a few seconds to save battery. It's bright enough to read in direct sunlight, which is exactly what you want.

Charging Performance

Raw capacity means nothing without effective power delivery. The Anker 737 excels here.

Device Charging Speed

The headline feature is 140W maximum output through the primary USB-C port. In practical testing:

Smartphone charging (iPhone 15 Pro Max):

• 0-50% in approximately 25 minutes
• 0-100% in about 75 minutes
• This matches or exceeds wall charger speeds

Laptop charging (MacBook Air M3):

• Maintained power during active use
• Charged from 20% to 80% in about two hours while working
• 140W output genuinely capable of powering demanding laptops

Tablet charging (iPad Pro):

• 0-50% in approximately 30 minutes
• Full charge in under two hours

The power delivery is consistent. I didn't experience any throttling during extended charging sessions, which suggests good thermal management inside.

Multi-Device Charging

When charging multiple devices simultaneously, the power bank intelligently distributes power:

• Single device: Full rated speed (up to 140W USB-C)
• Two devices: Power splits based on device needs
• Three devices: Prioritizes higher-demand devices appropriately

I regularly charged my phone, wireless earbuds case, and smartwatch simultaneously. All three charged at reasonable speeds, though obviously slower than dedicated individual charging.

Self-Recharging Speed

With a compatible 140W USB-C charger, the 737 recharges itself in under two hours. This is remarkably fast for such a large capacity battery. With the included 100W charger that many buyers will already own, expect closer to 2.5 hours.

The bidirectional USB-C port means you can use the same cable and charger for both the power bank and your laptop—reducing travel clutter.

Real-World Usage Scenarios

Numbers are helpful, but how does this translate to actual use?

Travel Performance

On a recent three-day trip, the Anker 737 kept my phone, wireless earbuds, and smartwatch charged without needing a wall outlet for the devices themselves. I recharged the power bank once on the second night.

For airplane travel, the 24,000mAh capacity (approximately 89Wh) falls just under the 100Wh limit for carry-on batteries. You can fly with this without special declarations.

Work From Anywhere

The 140W output genuinely enables laptop independence. I worked for an extended period at an outdoor café, keeping my MacBook Air running from the power bank. The laptop performed normally—no power throttling or performance reduction.

For remote workers or digital nomads, this capability is genuinely liberating.

Emergency Backup

As home backup power, the 737 can charge a smartphone approximately 5-6 times from empty, or keep a tablet running for multiple days. For power outages or emergency situations, this capacity provides genuine peace of mind.

Comparison to Alternatives

How does the Anker 737 stack up against competitors?

Versus Smaller Power Banks

10,000-15,000mAh power banks are more portable but lack the laptop charging capability and capacity for extended trips. The 737 is for users who prioritize capability over pocket-friendliness.

Versus Similar Capacity Competitors

The RAVPower 27,000mAh and Baseus 24,000mAh offer similar capacity at lower prices but lack the 140W output. For laptop charging, the Anker's higher wattage justifies the premium.

Versus Laptop Battery Packs

Dedicated laptop power banks sometimes offer more capacity but usually sacrifice smartphone fast charging. The 737's versatility makes it the better all-around option for users with diverse devices.

What Could Be Improved

No product is perfect. Here are the 737's limitations:

Size and Weight

At 630 grams, this isn't a casual pocket carry. It's gear you pack intentionally. Users wanting everyday carry might prefer a smaller 10,000mAh option for daily use and reserve the 737 for travel.

Price Point

The Anker 737 commands a premium price. Budget-conscious buyers can find 20,000mAh+ options for less, though typically with slower charging speeds and fewer features.

No Wireless Charging

Some competing power banks include Qi wireless charging pads. The 737 focuses entirely on wired charging. For wireless charging enthusiasts, this might be a dealbreaker.

Included Accessories

The power bank comes with a USB-C cable but no wall charger. To achieve maximum charging speed, you'll need a 140W USB-C charger—an additional expense if you don't already own one.

Who Should Buy the Anker 737?

This power bank solves specific problems for specific users:

Ideal for:

• Remote workers who need laptop power away from outlets
• Travelers taking extended trips
• USB-C power users with multiple devices
• Anyone tired of running out of battery
• Users who prioritize charging speed

Not ideal for:

• Users wanting pocket-sized portability
• Those on tight budgets
• People who only charge smartphones occasionally
• Wireless charging enthusiasts

Long-Term Considerations

After two weeks of heavy use, the Anker 737 shows no degradation in performance. Anker's track record suggests good battery longevity, and the included 18-month warranty provides some protection.

The USB-C PD standard means this power bank should remain compatible with devices for years to come. It's an investment that should age well.

Final Verdict

The Anker 737 Power Bank is the best portable charger I've tested for users who need serious power on the go. The 140W output genuinely enables laptop independence, something few portable chargers can claim. The 24,000mAh capacity provides multiple days of device charging without access to outlets.

The trade-offs—size, weight, and price—are acceptable given the capability. This isn't an everyday pocket power bank; it's a travel-ready power station that happens to be portable.

Score: 8.5/10

The Good:

• 140W output charges laptops at full speed
• 24,000mAh capacity for extended use
• Excellent build quality
• Useful battery percentage display
• Fast self-recharging

The Not So Good:

• Substantial size and weight
• Premium pricing
• No wireless charging option
• No charger included

For power users who need reliable, fast charging away from outlets, the Anker 737 delivers exactly what it promises.

Have questions about the Anker 737 or portable power banks in general? Reach out through our contact page!