Picture this: you’re three hours into a long-haul flight, your laptop is gasping for power, your phone is at 8%, and your wireless earbuds just died. Sound familiar? If you’re a remote worker, a frequent traveler, or a digital nomad who juggles multiple devices on the go, running out of battery isn’t just inconvenient — it’s a productivity killer. That’s exactly why finding the best high capacity portable charger for travel 2026 is no longer a luxury purchase. It’s an absolute necessity.
Enter the Anker 737 Power Bank (PowerCore 24K). Anker has long been a trusted name in the charging accessories space, and this beast of a power bank represents some of their finest engineering to date. With a massive 24,000mAh capacity, intelligent power management, and blazing-fast charging speeds, it’s designed specifically for people who live and work on the move. After spending quality time with this device across busy airport terminals, co-working spaces, and long travel days, we’re ready to give you the full picture.
Whether you’re a college student pulling an all-nighter, a digital nomad working from Bali’s beach cafes, or a road warrior constantly bouncing between time zones, this review is for you. We’ll break down everything — the standout features, who it’s best suited for, the honest pros and cons, and whether it’s genuinely worth your hard-earned money. Spoiler alert: it almost certainly is. Let’s dive in.
Key Features and Benefits
- Massive 24,000mAh Capacity: The PowerCore 24K packs enough juice to charge a typical smartphone roughly five to six times over, or top up a 13-inch laptop battery nearly twice. For a full travel day — or even a weekend trip without access to wall outlets — this capacity is an absolute game-changer. You genuinely stop worrying about finding a plug.
- 140W High-Speed USB-C Output: This is where the Anker 737 really separates itself from the competition. The USB-C port delivers up to 140W of output power, meaning it can rapidly charge even power-hungry laptops like the MacBook Pro or Dell XPS at near wall-adapter speeds. This is not your average slow-drip phone charger — this is serious, professional-grade fast charging.
- Three Output Ports Simultaneously: With two USB-C ports and one USB-A port, you can charge three devices at the exact same time. Laptop, phone, and earbuds all topped up during a single layover. For anyone managing multiple devices — which is most of us — this multi-device capability is incredibly practical.
- Smart Digital Display: The built-in LED display shows you the exact battery percentage remaining, current input and output wattage, and estimated charging times. No more guessing games. You always know precisely how much power you have left and how fast your devices are charging — genuinely useful information when you’re planning your day.
- Bi-Directional Fast Charging: The Anker 737 supports fast charging in both directions — meaning it charges your devices quickly AND it recharges itself quickly too. Using a 140W charger, you can refill the entire power bank in roughly 1.5 hours. Compare that to older power banks that can take six or more hours to recharge, and the difference is enormous for frequent travelers.
- Compact and Airline-Friendly Design: Despite its large capacity, the PowerCore 24K has a thoughtfully designed form factor. It fits comfortably in most laptop bags and backpacks, and at 24,000mAh it remains within most airline carry-on battery regulations (though always check your specific airline’s policy before flying).
- Anker’s Renowned Build Quality and Warranty: Anker products are built to last, and the 737 is no exception. The robust casing, quality materials, and Anker’s industry-leading 18-month warranty give you peace of mind that this is a long-term investment in your productivity and travel setup.
Who Is This Best For?
The Anker 737 Power Bank is tailor-made for anyone whose work or lifestyle keeps them away from traditional power outlets for extended stretches of time. Remote workers and digital nomads will find it particularly transformative — imagine working a full eight-hour day from a rooftop café or a train carriage without ever feeling the anxiety of a low battery warning. The 140W output means your laptop charges fast enough to keep pace with your workload, while the additional ports keep your phone and other accessories topped up simultaneously. If your devices are your livelihood, this power bank is essentially business-critical equipment.
Frequent travelers and college students are the other core audience who will get extraordinary value from this device. Travelers navigating long-haul flights, airport layovers, or road trips through areas with limited charging infrastructure will love the sheer capacity and reliability of the PowerCore 24K. College students pulling late-night study sessions in libraries or on campus grounds — where wall outlets are often scarce and fiercely competed for — will find this power bank gives them a serious academic edge. Essentially, if you’ve ever felt the stress of a dying battery at the worst possible moment, the Anker 737 is designed to eliminate that stress entirely.
Pros and Cons
- Pro: Industry-leading 140W USB-C output for ultra-fast laptop and device charging
- Pro: Enormous 24,000mAh capacity provides multiple full charges for phones and substantial power for laptops
- Pro: Charges itself back to full in approximately 1.5 hours — one of the fastest self-recharge times available
- Pro: Clear, informative digital display showing percentage, wattage, and time estimates removes all guesswork
- Pro: Three simultaneous output ports means one power bank can serve your entire device ecosystem at once
- Con: It’s heavier than smaller-capacity power banks, so ultralight packers may find it adds noticeable weight to their bag — this is the inherent trade-off with high capacity
- Con: The premium feature set comes at a higher price point compared to budget power banks, though the performance and reliability genuinely justify the investment for serious users
Our Verdict
After thoroughly evaluating the Anker 737 Power Bank (PowerCore 24K), it’s clear this is one of the most capable and well-engineered portable chargers on the market right now. It earns its place as the best high capacity portable charger for travel 2026 by delivering on every front that matters: raw battery capacity, charging speed, multi-device versatility, and user-friendly design. For remote workers, digital nomads, frequent flyers, and students who depend on their devices to get through the day, this power bank isn’t just a nice-to-have — it’s the kind of gear that quietly transforms how you work and travel.
Yes, it carries a premium price tag, and yes, it has some weight to it. But when you’re sitting in a middle seat on a six-hour flight and your MacBook is still at 70% power because the Anker 737 has been quietly keeping everything charged, you won’t think twice about either of those trade-offs. We enthusiastically recommend it. It’s the power bank we’d pack every single time, without hesitation.
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Frequently Asked Questions
Q: Can I take the Anker 737 Power Bank on a plane?
A: Generally yes — at 24,000mAh (approximately 88.8Wh), the Anker 737 falls within the TSA’s carry-on battery guidelines for most commercial airlines. However, regulations can vary by airline and destination country, so it’s always wise to double-check with your specific carrier before you travel. Power banks must be packed in carry-on luggage, not checked baggage.
Q: How long does it take to fully recharge the Anker 737 Power Bank itself?
A: When connected to a compatible 140W USB-C charger, the Anker 737 can fully recharge itself in approximately 1.5 hours, which is remarkably fast for a 24,000mAh battery. Using a lower-wattage charger will naturally extend that recharge time, so for the best experience, use a high-wattage USB-C power adapter.
Q: Can the Anker 737 charge a MacBook Pro or other power-hungry laptops?
A: Absolutely — and this is one of its standout strengths. The 140W USB-C output port is powerful enough to charge even demanding laptops like the 16-inch MacBook Pro, Dell XPS 15, or Lenovo ThinkPad at full or near-full speed. It provides a practical alternative to carrying a wall adapter for many laptop users, making it especially valuable for travel and remote work situations.
The Anker 737 Power Bank (PowerCore 24K) is a premium product built for people who take their power needs seriously. If you’ve been on the fence about upgrading your portable charging setup, this is the device that will make you wonder how you ever managed without it. Don’t let a dead battery slow you down — whether you’re in a coffee shop in Lisbon, a library in Chicago, or 35,000 feet above the Atlantic.