Anker 737 Power Bank PowerCore 24K

At 88.80Wh, this comfortably clears the airline carry-on threshold with room to spare. Anker states this charges an iPhone 13 almost 5 times or a 2021 iPad Pro 12.9-inch about 1.3 times. As with any lithium power bank, expect real delivered charge to land somewhat below the rated 88.8Wh once conversion losses are accounted for, a normal characteristic across this entire product category rather than something specific to this unit.

140W is available from either USB-C port, a genuinely strong laptop-charging speed built on Anker's GaNPrime technology and PowerIQ 4.0 for efficiency. The USB-A port caps at 18W, adequate for phones and small accessories but not a fast-charging port by modern standards. Reviewers have measured that using all three ports simultaneously brings the first USB-C port down to 140W, the second down to roughly 92W, and the USB-A port to 18W, similar in principle to how the Anker Prime's per-port wattage scales with active port count.

Two USB-C ports plus one USB-A port support up to three devices charging at once. Anker markets this specifically around laptop, tablet, and phone charging simultaneously, with the smart display making it straightforward to see which port is drawing how much power at any given moment rather than guessing.

Because charging is bidirectional at up to 140W, this unit can recharge fully in under one hour when paired with a sufficiently powerful USB-C charger, one of the faster full-recharge times available in this capacity class. This is a genuine practical advantage over units that charge fast but recharge slowly; a power bank that takes several hours to refill is far less useful for back-to-back travel days than one that's ready again within the hour.

Anker's stacked internal design is a deliberate departure from the flatter layout most power banks use, part of what keeps this unit reasonably compact despite the 24,000mAh cell count. At 630g and roughly 156 x 55 x 50mm, it's a genuinely substantial object, noticeably denser than a phone-only power bank, reflecting both the capacity and the 140W-capable internals packed inside. The smart digital display sits on the front, showing real-time charging data rather than a simple battery-level indicator.

This is the direct predecessor tier to the Anker Prime covered elsewhere on this site, offering a lower total system output (140W max per port, no 250W combined figure) and smaller capacity (24,000mAh vs 27,650mAh) at a real price advantage. Against the UGREEN 145W, also covered elsewhere on this site, the two units are close competitors at similar capacity and top-port wattage; the UGREEN edges ahead slightly on total system wattage (145W vs 140W) while this Anker unit counters with genuinely fast bidirectional charging and Anker's broader charging ecosystem.

Buyers who want laptop-charging speed without the Anker Prime's premium price. 140W covers the same real-world laptop charging use case at a meaningful discount.

Anyone who travels frequently and needs fast turnaround. The under-one-hour full recharge is a genuine practical advantage for back-to-back trips.

Multi-device charging on the go. Three ports, real simultaneous wattage, and a display that shows exactly what's happening on each.

Not for anyone chasing the absolute highest capacity or total wattage. The Anker Prime and UGREEN 145W both edge this unit out on one spec or the other.

Not for the most weight-conscious carry. At 630g, this is one of the heavier options covered in this category.