Anker 737 Power Bank (PowerCore 24K) Review — 2026

The Anker 737 Power Bank (PowerCore 24K) aims to bridge the gap between pocketable phone chargers and bulky, heavy laptop batteries. Across ~6,880 aggregated reviews it earns a solid 4.3/5 overall, praised for laptop‑level output, a clear OLED display, and airline‑legal usable capacity — while receiving pushback for its weight and occasional PD negotiation quirks. Our short verdict: it’s one of the best travel‑friendly high‑power banks for 2026 if you need reliable laptop charging on the go, but it’s not the pick for someone who prioritizes pocketability above raw capability.

What Is the Anker 737 Power Bank (PowerCore 24K)?

The Anker 737 Power Bank, also marketed as PowerCore 24K, is a high‑capacity portable battery designed to charge phones, tablets, and most modern laptops. Nominal capacity is 24,000mAh; usable energy translates to roughly 86–87 Wh — under the 100 Wh airline carry‑on limit — making it suitable for air travel without special approval. The headline feature is its high sustained Power Delivery output: up to 140W shared across its USB‑C ports (with dynamic distribution depending on port usage), plus two‑way fast charging so the bank itself can recharge quickly when hooked to a high‑wattage PD charger.

Physically the unit is substantial — noticeably heavier and larger than everyday phone power banks — but it’s built with a clear OLED display showing real‑time wattage, remaining percentage, and input/output status. Anker positions the 737 as a travel and workstation companion for users who want to top up a MacBook Pro, Windows laptop, Steam Deck, and multiple mobile devices without relying on wall outlets.

What Reviewers Across the Internet Say

Aggregating feedback from retail buyers, community forums, video reviewers, and professional blogs gives a consistent picture:

• Amazon buyers (overall ~4.4/5) mostly praise its ability to charge laptops and the convenience of the OLED readout. Positive notes focus on battery life, build quality, and the freedom to power larger devices in transit. A minority of verified purchasers mention unit variability and recharge times that fell short of expectations.

• Reddit threads (community score ~4/5) skew practical: many users recommend the 737 for travel and handheld consoles/Steam Deck or laptop use, but forum posts highlight Power Delivery negotiation quirks with certain laptops and occasional reports of battery health anomalies over long periods.

• YouTube reviewers (~4.3/5) emphasize real‑world laptop charging tests, thermal behavior, and comparisons with similar high‑power banks. Video tests tend to affirm the 737’s sustained output and two‑way charging, while noting the weight and need for a suitable PD wall charger to realize full speeds.

• Expert blogs (~4.5/5) generally give the strongest praise: reviewers call out the 140W capability, airline‑legal usable watt‑hours, fast recharge, and the helpful OLED display — often labeling it one of the top choices for laptop‑capable power banks for travelers.

Across sources the consensus is clear: outstanding raw capability for portable power, balanced by tradeoffs in size/weight and some real‑world variability in behavior with specific laptops.

Performance & Real‑World Use

Power: The 737’s headline 140W PD is a real advantage when you need to charge modern high‑power laptops. In multi‑device scenarios the bank intelligently shares power across ports; in single‑device tests it sustains high wattage long enough to meaningfully top up large machines. This makes it especially useful for MacBook Pros, gaming laptops, or for charging a laptop while running power‑hungry tasks (video editing, gaming) in a pinch.

Two‑Way Charging and Recharge Speed: Compared with older large banks, the 737 recharges faster when paired with a sufficiently powerful 100–140W USB‑C PD charger. That two‑way speed is useful when you rely on the bank for long travel days and need to top it up between flights or during a layover.

OLED Display and Monitoring: The digital display is more than a nice‑to‑have — it provides real‑time wattage readings, input/output status, and remaining charge, which helps diagnose PD negotiation issues and lets you confirm the bank is delivering expected power to a device.

Compatibility: Most modern USB‑C PD laptops work well; however, some users report that certain laptops do not always negotiate to the maximum advertised wattage and instead sit at lower power levels. This behavior is often dependent on the laptop’s own firmware and the PD handshake, not strictly the bank itself. In practice you should expect excellent performance with the majority of current laptops, but be aware of potential edge cases.

Portability & Build: It’s solidly built and feels premium, but the tradeoff is mass — this is not a pocketable charger. For carry‑on travel it’s fine, but you will notice it in a daypack or briefcase.

Reliability: Professional reviews and most user reports find the unit reliable. Still, a minority of users on community forums report unit‑to‑unit variability and occasional battery‑health anomalies after long use. Anker’s warranty and support mitigate risk for many buyers.

Pros and Cons

Pros

• Up to 140W PD output across USB‑C ports — can charge many laptops at near full speed.
• Airline‑friendly usable capacity (~86–87 Wh from 24,000mAh) — legal for carry‑on travel in most jurisdictions.
• Fast two‑way charging — recharges the bank quickly with a high‑wattage PD wall charger.
• OLED display with real‑time wattage and charge information — practical diagnostics.
• Solid build quality and Anker’s ecosystem/support.

Cons

• Heavy and relatively bulky compared with lighter 20–26k alternatives — not pocketable.
• Occasional PD negotiation quirks with some laptops; may not always hit advertised wattage depending on device firmware.
• Minority of users report unit variability or battery/recharge anomalies over long term.
• No built‑in cable or cable storage — you’ll need to carry USB‑C cables separately.

Who Should Buy It (and Who Shouldn't)

Who should buy it

• Travelers who need laptop‑level charging in carry‑on luggage and want a single compact-ish device to charge phones, tablets, and a laptop.
• Content creators, gamers, and professionals who need high sustained output to top up power‑hungry laptops away from a wall outlet.
• Users who value real‑time power monitoring and want to diagnose charging behavior quickly.

Who shouldn’t buy it

• People who prioritize absolute lightness and pocketability — there are lighter 20–26k units that trade peak output for smaller size.
• Users who want an integrated cable solution or ultra‑minimal carry setup — this unit requires separate cables.
• Buyers who are unwilling to accept a small risk of device‑level variability; if you need ironclad, long‑term guarantees you may prefer solutions with longer enterprise warranties or those that match your device vendor’s ecosystem.

Frequently Asked Questions

Is the Anker 737 Power Bank allowed on airplanes?

Yes. The usable energy from 24,000mAh is roughly 86–87 Wh, which is under the common 100 Wh airline carry‑on limit. Always stow it in carry‑on baggage (not checked) and check the airline’s policies before flying — rules can vary slightly by carrier and country.

Will it charge a MacBook Pro / gaming laptop at full speed?

In many cases, yes. The 737 supports up to 140W Power Delivery and will often provide near‑full charging speeds for MacBook Pro and many high‑power laptops. Some laptops or firmware combinations can limit negotiated power, so real‑world results vary slightly by model.

How long does the 737 take to recharge?

When paired with a sufficiently powerful PD charger (e.g., 100–140W), the 737 recharges much faster than older 20k+ banks thanks to two‑way fast charging. Exact recharge time depends on the input wattage available; expect significantly shorter turnaround with a high‑wattage wall charger compared with typical phone chargers.

Does it come with cables or an integrated cable holder?

No. The Anker 737 does not include integrated cables or cable storage. You’ll need to bring your own USB‑C cables to use with the bank.