Anker 737 Power Bank Review: 8.7/10 - High-capacity 140W charging powerhouse
Overview
The Anker 737 Power Bank (PowerCore 24K) is a high-capacity portable battery pack that delivers up to 140W via Power Delivery 3.1, making it capable of fast-charging even the most demanding laptops. With 24,000mAh capacity, it can charge an iPhone 13 nearly five times or a MacBook Pro to full. The smart OLED display shows real-time power stats, and the 86.4Wh capacity is under TSA airline limits.
Design & Build
The 737 has a sleek, elongated design with a matte black finish that resists fingerprints. At 6.18 inches long and weighing 1.39 pounds, it is heavy but compact for its capacity. The OLED screen on top displays real-time output power, input power, and estimated time to full charge or discharge. Two USB-C ports and one USB-A port provide flexible charging options. Build quality is premium, with a sturdy chassis that has survived drops in testing.
Performance
The 737 delivers a true 140W from either USB-C port, enough to fast-charge a 16-inch MacBook Pro at full speed. Bi-directional charging means it can recharge itself at 140W when connected to a compatible charger, going from 0 to 100% in about 1.5 hours. The USB-A port outputs up to 18W for older devices. Simultaneous charging of three devices works well, with intelligent power distribution. The OLED display provides useful real-time feedback, and the power bank maintains consistent performance even under heavy load.
Features
PD 3.1 support enables 140W output using the extended 28V profile, a feature typically found only in larger, more expensive power banks. The smart digital display sets it apart from competitors, showing live wattage readings. The included 140W USB-C to USB-C cable supports the full power delivery capability. The 24,000mAh capacity provides enough power for multiple device charges, and the 86.4Wh rating keeps it legal for carry-on airline travel.
Pros
- 140W PD 3.1 charging for laptops
- Smart OLED display with live power stats
- Bi-directional 140W self-charging
- Airline-compliant 86.4Wh capacity
- Premium build quality
Cons
- Heavy at 1.39 pounds
- Expensive compared to lower-wattage banks
- Only one USB-A port
- OLED display drains slight standby power
Verdict
The Anker 737 Power Bank is the ultimate portable power solution for professionals who need to charge laptops, tablets, and phones at full speed while traveling.
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Technical Specifications
How We Rate Products
Every product on ComfyTechCheck is scored on a 1 to 10 scale based on a structured evaluation framework. We assess products across five core criteria:
- Performance (30% weight): Speed, responsiveness, and real-world capability in its category.
- Build & Design (20% weight): Material quality, ergonomics, and aesthetic appeal.
- Features (20% weight): Breadth and usefulness of included functionality.
- Value (20% weight): Price-to-performance ratio relative to direct competitors.
- Battery Life or Reliability (10% weight): Endurance testing for portable devices, or long-term dependability for stationary gear.
Scores are assigned by our editorial team after hands-on testing or extensive research using verified user reports, expert analysis, and technical specifications. The weighted average produces the final rating you see on each review. This methodology is inspired by established consumer review standards from organizations such as Consumer Reports and Which?, adapted for the tech product categories we cover.
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