Anker 737 (PowerCore 24K)

If you carry a laptop or several devices through long days away from a plug, a small phone bank won’t cut it — you need a portable charger that can actually power a MacBook or fast‑charge multiple phones. The Anker 737 (PowerCore 24K) is a 24,000mAh USB‑C PD 3.1 power bank aimed squarely at that problem: it delivers up to 140W output, a clear step above most 100W banks, and shows real‑time input/output watts and estimated recharge time on a digital display. ## What makes it worth it Its headline 140W USB‑C PD 3.1 output lets you charge high‑power laptops and fast‑charge phones far quicker than typical 60–100W packs, and reviewers note it can recharge itself in roughly an hour when paired with a 140W charger. The two USB‑C ports plus a USB‑A port let you run a laptop and handsets simultaneously, while the smart digital display provides transparent wattage and time‑to‑full information that helps you manage charging on the move. At 24,000mAh (≈86.4Wh) it sits under the 100Wh airline limit, so it’s genuinely travel‑friendly. ## Where it falls short It’s larger and heavier than pocket 10,000mAh chargers and costs noticeably more, so it’s not the best choice if you only need an occasional phone top‑up; it also lacks wireless charging and reviewers report it doesn’t provide a full UPS-style passthrough for simultaneously powering a laptop and recharging itself as a UPS. Buy it if you travel with a power‑hungry laptop and want fast, reliable USB‑C charging; skip it if you prioritise the lightest pocketable bank or need integrated wireless charging.

£75.99