Anker 737 PowerCore 24K Power Bank Review

Anker announced the 737 PowerCore 24K back in 2022 as its most advanced portable charger to date. With a capacity of 24,000mAh (86.4Wh), it sits just under the airline safety threshold, making it suitable for carry‑on travel. The design targets professionals, travellers, and gamers who need reliable charging for laptops, tablets, and phones. Ranging from around the £150-£180 mark, it is firmly in the premium tier of power banks, but for long-term usage, this is one of the best options available.

Performance and Features

The defining feature of the 737 PowerCore 24K is its 140W Power Delivery 3.1 output, which allows it to charge high‑demand laptops, such as the MacBook Pro, at full speed. This level of output is rare among portable chargers, and it ensures that even power‑hungry devices receive the energy they need without compromise. The device also supports 140W bi‑directional input, meaning it recharges itself rapidly when connected to a compatible adapter. This reduces downtime significantly compared to conventional power banks. Three ports provide flexibility: two USB‑C ports and one USB‑A port. This configuration allows simultaneous charging of multiple devices, whether that is a laptop, tablet, and phone together or two high‑demand devices side by side. The inclusion of USB‑A ensures compatibility with legacy accessories, while USB‑C delivers the fastest speeds for modern hardware. An integrated OLED display sets the 737 apart from many rivals. The screen provides real‑time information on input and output wattage, battery percentage, and cycle count. This transparency helps users monitor performance and manage long‑term battery health. For professionals who rely on consistent power delivery, the ability to see exactly how the device is performing adds confidence.

Design and Build

The 737 PowerCore 24K measures 155.7 × 54.6 × 49.5mm and weighs approximately 630g. It is compact enough to fit into a backpack or travel bag, yet too bulky for pocket use. The casing is robust, with a matte black finish and rounded edges that balance durability with portability. The design reflects Anker’s focus on practicality, offering a device that feels solid in hand while remaining manageable for travel. The weight is noticeable, yet it is a trade‑off for the capacity and performance offered. For users who need laptop‑level charging on the go, the size and mass are acceptable compromises. The OLED display is positioned clearly on the front, making it easy to check status at a glance without fumbling with buttons or cables.

Everyday Use

In practice, the 737 PowerCore 24K proves versatile across a range of scenarios. Travellers benefit from its flight‑safe capacity, ensuring compliance with airline regulations while still carrying enough energy to recharge multiple devices during long journeys. Professionals appreciate the ability to power laptops and phones simultaneously, reducing reliance on wall outlets in airports, hotels, or conference venues. Gamers and content creators find value in the high‑wattage output, which supports portable consoles and cameras without throttling. Families on long trips can keep multiple devices running, from smartphones to tablets, without worrying about battery depletion. The OLED screen adds reassurance, showing exactly how much power is being delivered and how much remains. The rapid self‑charging capability is another advantage. When connected to a 140W adapter, the power bank replenishes quickly, ensuring it is ready for the next session. This efficiency makes it practical for daily use, not just occasional travel.

Market Position

Competitors such as the Zendure SuperTank Pro and Shargeek Storm 2 offer similar high‑capacity charging, but Anker’s reputation for reliability and its OLED interface give the 737 an edge. The price places it above entry‑level power banks but below some boutique models, striking a balance between accessibility and premium performance. Anker’s established ecosystem also adds value. The 737 integrates smoothly with Anker’s chargers and cables, ensuring optimal performance. For users already invested in Anker products, this feels like a natural extension of the brand’s line-up.

The Anker 737 PowerCore 24K redefines what a portable charger can be. Its combination of 140W two‑way charging, 24,000mAh flight‑safe capacity, and OLED monitoring makes it one of the most capable power banks available today. Professionals, travellers, and gamers benefit from reliable laptop‑level charging in a compact form that integrates seamlessly into daily routines. Drawbacks are present. At ~630g, the unit is heavy compared to smaller power banks, and its size makes it impractical for pocket use. The premium price also places it firmly in the high‑end category, limiting appeal for casual users. Reports of idle drain when cables are left connected, or when the OLED display remains active, mean it is best suited to frequent, active use rather than long‑term storage. Conversion losses also reduce the effective output to closer to 13,000–14,000mAh delivered, a reminder that headline capacity does not always equal useable energy. Despite these limitations, the 737 PowerCore 24K delivers exceptional value for those who demand serious portable power. It is a device built for professionals and travellers who need confidence that laptops, tablets, and phones will remain charged wherever they go.

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