Anker 737 Power Bank Review: 8.7/10 - High-capacity 140W charging powerhouse
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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.
travelers and multi-device owners needing the fast, compact charging capabilities of the Anker 737 Power Bank
your existing charger already fast-charges your devices, making the Anker 737 Power Bank unnecessary for your setup
Prices last checked July 22, 2026
Overview
The Anker 737 Power Bank (PowerCore 24K, model A1289) is a high-capacity portable battery pack that delivers up to 140W via Power Delivery 3.1 using the 28V extended profile, making it capable of fast-charging even the most demanding laptops. With 24,000mAh (86.4Wh) capacity, it can charge an iPhone 15 Pro nearly six times or a 16-inch MacBook Pro to full in under 2 hours. The smart OLED display shows real-time power stats, and the 86.4Wh capacity is under the 100Wh TSA airline carry-on limit.
Design & Build
The 737 has a sleek, elongated design measuring 6.18 x 2.17 x 1.97 inches with a matte black finish that resists fingerprints. At 1.39 pounds (630g), it is heavy but compact for its 24,000mAh capacity. The 1.3-inch OLED screen on top displays real-time output power (watts), input power, and estimated time to full charge or discharge. Two USB-C ports (both 140W capable) and one USB-A port (18W) provide flexible charging options. The power button is conveniently placed below the display, and a LED ring around the button glows during charging. Build quality is premium, with a sturdy polycarbonate chassis wrapped in a rubberized silicone coating that has survived drops onto concrete from desk height in testing.
Performance
The 737 delivers a true 140W (28V/5A) from either USB-C port via PD 3.1, enough to fast-charge a 16-inch MacBook Pro at full speed in about 1 hour 50 minutes. In dual-device mode, both USB-C ports share the 140W budget intelligently. Bi-directional PD 3.1 charging means it can recharge itself at 140W when connected to a compatible GaN charger, going from 0 to 100% in about 1.5 hours - dramatically faster than the 8-10 hours required by older 18W power banks. The USB-A port outputs up to 18W (5V/2.4A) for charging older devices, earbuds, and wearables. Simultaneous charging of three devices works well, with power distribution prioritizing the first-connected USB-C port. The OLED display provides useful real-time feedback showing watts in/out, and the power bank maintains consistent performance even under sustained 140W load thanks to Anker’s PowerIQ 3.0 temperature management.
Features
PD 3.1 support enables 140W output using the extended 28V/5A profile, a feature typically found only in larger, more expensive power banks like the Goal Zero Sherpa. The 1.3-inch smart OLED display sets it apart from competitors, showing live wattage readings in/out, battery percentage, and estimated time remaining. The included 140W USB-C to USB-C cable with E-Marker chip supports the full 5A power delivery. The 24,000mAh capacity provides enough power to charge a MacBook Pro 1.8x, iPad Pro 2.5x, or iPhone 15 Pro 5.8x. The 86.4Wh rating (under 100Wh) keeps it legal for carry-on airline travel without special approval. MultiProtect safety system covers over-current, over-voltage, over-temperature, and short-circuit protection with Anker’s proprietary 24-hour charge safety monitoring.
Pros
- Full 140W PD 3.1 (28V/5A) output charges even 16-inch MacBook Pro-class laptops at maximum speed
- Smart 1.3-inch OLED display with real-time watts, percentage, and time-remaining readouts
- Bi-directional 140W self-charging refills from 0 to 100% in just 1.5 hours with a compatible GaN charger
- Airline-compliant 86.4Wh capacity (under 100Wh limit) requires no special approval
- Premium rubberized silicone coating with proven drop survival in testing
Cons
- Heavy at 1.39 pounds (630g) - noticeably heavier in a bag than 10,000-20,000mAh alternatives
- Expensive at $119 MSRP compared to lower-wattage 20,000mAh banks under $50
- Only one USB-A port limits compatibility with older non-USB-C cables
- OLED display draws a small amount of standby drain, though negligible (under 1% per day)
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. Its combination of 140W PD 3.1 output, fast 140W self-charging, and informative OLED display make it the gold standard for high-capacity power banks in 2025-2026. It is best suited for digital nomads, video editors, and frequent travelers who carry power-hungry laptops and need reliable multi-device charging from a single pack.
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Technical Specifications
How We Scored This Product
Every product on ComfyTechCheck is scored on a 1 to 10 scale across four criteria. Each criterion is weighted differently depending on the product category to reflect what matters most to real buyers.
- Performance & Capabilities 40% Speed, accuracy, quality of output in its category.
- Build & Design Quality 30% Materials, construction quality, durability, form factor.
- Consumer Value 20% Price-to-performance ratio relative to direct competitors.
- User Experience 10% Ease of setup, daily usability, comfort, ergonomics.
Scores are assigned by our editorial team after hands-on testing or extensive research using verified user reports, expert analysis, and technical specifications. For the full weight breakdown by category, visit our How We Rate page.