Anker 737 Power Bank Review: Capacity, Charging Speed and Value

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Anker

Anker 737 Power Bank

★★★★★★★★★★4.5Official store rating

Also available as the smaller PowerCore 20K for lighter travel

$140.00

Reference price checked July 2026Check Latest Price

In this review:

• What is the Anker 737 Power Bank?
• Charging speed and display
• Capacity and portability
• Ports and everyday use
• Value for money

What is the Anker 737 Power Bank?

The Anker 737 Power Bank, also sold under the name PowerCore 24K, is a high-capacity portable charger built around a 24,000mAh (86.4Wh) battery. It is designed for people who need more than a single phone charge on the go, such as travelers, remote workers and anyone who wants to top up a laptop away from an outlet.

Unlike basic power banks that only trickle-charge a phone, the 737 supports up to 140W of output through its USB-C port, which is enough to charge many ultrabooks and MacBook models at a meaningful speed rather than a crawl.

Charging speed and display

According to Anker, the 737 uses Power Delivery 3.1 with bi-directional charging, meaning the pack itself can recharge quickly from a compatible wall charger, and can also output up to 140W to a connected device. The brand states a 16-inch MacBook Pro can reach roughly 50% charge in about 40 minutes under the right conditions.

A built-in OLED screen shows live input and output wattage per port, along with an estimated time to finish charging or discharging. This is a genuinely useful upgrade over the single LED indicator found on most power banks, since it removes the guesswork about how much charge is left or how fast a device is actually charging.

Capacity and portability

The 24,000mAh rating translates to about 86.4Wh, which sits just under the 100Wh limit most airlines apply to carry-on power banks, so it should be flight-friendly in most cases, though travelers should always confirm current airline rules before flying. The tradeoff for that capacity is size and weight: this is a noticeably larger and heavier pack than compact 10,000mAh chargers, so it suits a backpack or laptop bag better than a jacket pocket.

Ports and everyday use

The 737 includes two USB-C ports and one USB-A port, so it can charge up to three devices at the same time, with combined output shared across the ports. For most people, that means a phone, a pair of earbuds and a tablet can all draw power simultaneously without needing to unplug anything.

Value for money

The Anker 737 sits at a premium price point compared with basic power banks, which reflects its higher capacity, faster charging standard and the added display hardware. For anyone who regularly needs to recharge a laptop away from an outlet, or who is tired of running out of battery mid-trip, the price is easier to justify than it would be for someone who only needs occasional phone top-ups.

Frequently Asked Questions

Is the Anker 737 Power Bank allowed on flights?

Most airlines allow power banks under 100Wh in carry-on luggage, and the 737's 86.4Wh rating typically qualifies. Always check your specific airline's current policy before flying, since rules can change.

Can the Anker 737 charge a laptop?

Yes. With up to 140W of output over USB-C, it can charge many laptops, including several MacBook models, though actual speed depends on your laptop's own charging limits and the cable used.

Do I need a special cable to get 140W?

Yes, reaching the full 140W requires a USB-C cable rated for Power Delivery 3.1 along with a device that supports that input speed.

How long does the battery itself take to recharge?

Thanks to bi-directional charging, the pack can recharge relatively quickly from a compatible high-wattage USB-C charger, though Anker does not publish one single fixed time since it depends on the charger used.