Ancher 737 Power Bank

Ancher 737 Power Bank PowerCore 24K: In-Depth Review

Weighing a hefty 627 grams, and offers three ports: one USB-A and two cutting-edge USB-C ports, including Quick Charge. With output voltages from 5 to 20 volts and a 140-watt mode, make’s it a formidable player.

However, voltage concerns may arise in specific scenarios. So let’s dive deeper and check out what else the Ancher 737 Power Bank PowerCore 24K brings to real-life experience. Check out the latest price of Ancher 737 Power Bank.

Exploring Unique Features:

The Ancher 737 Power Bank arrives in fairly standard plastic wrap packaging, but it’s the content that matters most. Inside the box, you’ll find the power bank itself, a carrying pouch, a USB PD 3.1 power cable, unboxing materials, and a user manual.

The user manual, while not a page-turner, does provide essential information about outputs, capacity, and usage instructions. Safety marks adorn the power bank, reassuring users of its quality. Check it out here>> Ancher 737 Power Bank.

Technical Specifications:

Let’s get into the nitty-gritty of this power bank’s technical specifications. Weighing in at 627 grams, it’s a hefty contender in the portable power arena, significantly heavier than its peers. The Ancher 737 Power Bank boasts three USB ports: one USB-A and two USB-C ports. The USB-A port supports popular protocols like Quick Charge, delivering up to 18 Watts of power. The USB-C ports, on the other hand, use the modern Power Delivery 3.1 specification.

These ports provide fixed output voltages of 5, 9, 15, and 20 volts, aligning with USB PD 3.0 capabilities. Additionally, the Power Bank offers a programmable power supply (PPS) mode, optimizing charge efficiency. The bonus mode, a 28-volt output, catapults this device into the elite territory of 140-watt output capability. It’s crucial to note that while both ports C1 and C2 can discharge, only C1 is for charging.

This power bank’s comprehensive set of protocols makes it a formidable contender in the market. However, it’s important to highlight that the power bank tends to ride close to, or even below, minimum voltage requirements, potentially causing issues in certain scenarios.

Capacity Confusion:

Capacity, a critical factor for any power bank, is often misleadingly communicated. The Anchor 737 claims a capacity of 24,000 milliampere-hours (mAh), but this figure doesn’t account for voltage variations during discharge. While milliampere-hours offer a partial picture, it’s watt-hours that truly matter. An anchor’s nearly unreadable print on the back suggests a watt-hour capacity of approximately 86 Wh. However, it’s crucial to remember that this number is an approximation.

In reality, the power bank delivers an output capacity of around 72 Wh, taking conversion efficiency into account. The absence of conversion efficiency data can mislead consumers, leaving them unsure about the actual energy they can extract. Transparency in watt-hour capacity is vital, especially regarding airline travel restrictions.

Travel and Overheating:

Speaking of travel, airlines restrict battery packs to 100 watt-hours per pack due to safety concerns. While the Ancher 737 Power Bank’s 140-watt output capability might raise eyebrows, it’s vital to emphasize that usable watt-hour capacity matters. It’s imperative that manufacturers clarify this information to prevent travelers from inadvertently breaking airline regulations.

Thermal performance is a key consideration. During both charging and discharging, the power bank maintains stable temperatures around 45 degrees Celsius. However, it’s worth noting that pushing the 140-watt mode can trigger an overheating warning, necessitating a cooldown period. Safety mechanisms are essential in such high-powered devices. Check out the latest price of Ancher 737 Power Bank.

Charging and Discharging Efficiency:

Charging and discharging efficiency is where the Ancher 737 Power Bank faces challenges. While it supports impressive charging speeds, reaching 125 watts, efficiency can diminish as the battery fills. In a full discharge test, the power bank delivered 72 watt-hours of energy, on par with similar devices in terms of efficiency. It sustained a 40-watt load for nearly two hours and managed 31 minutes under a 140-watt load.

Notably, the power bank supports pass-through charging, allowing it to charge other devices while being charged itself. Unfortunately, it doesn’t function well as an uninterruptible power supply, as power interruptions lead to a renegotiation of voltage requirements, potentially disrupting connected devices.

Overload Testing:

In overload testing, the Ancher 737 Power Bank performed admirably. It reliably delivered power up to 148 watts before triggering an overload condition. While there were occasional hiccups with the cover during overloads, it managed the stress fairly well.


Exceptional Power Output: The Anchor 737 PowerCore 24K boasts an impressive 140-watt output capability, setting it apart from many competitors. This means it can handle high-powered devices and deliver fast charging speeds.

Comprehensive Protocol Support: It offers an extensive array of protocols, making it compatible with a wide range of devices. From Quick Charge to Power Delivery 3.1, it covers all the popular charging standards.

Pass-Through Charging: The ability to charge other devices while being charged itself is a handy feature. This versatility adds to its practicality, especially in situations where multiple devices need a power boost.

Sturdy Build and Design: The power bank exudes a premium look and feel. Its robust construction suggests durability, and it’s evident that Anchor has paid attention to the details in its design.

Clear Visual Display: The informative display provides users with valuable information about power usage. This feature is not only functional but also adds to the overall user experience.


Inefficiency in Energy Conversion: While the Anchor 737 PowerCore 24K offers impressive capabilities, its efficiency could be improved. The conversion of stored energy to output is less than optimal, resulting in some energy loss.

Limited Overload Tolerance: The device tends to hit its limit around 148 watts, after which it may experience overload conditions. While this is generally sufficient for most scenarios, it may not accommodate extremely power-hungry devices.

Air Travel Considerations: Despite its outstanding capabilities, users should be mindful of airline restrictions on battery capacity. The power bank hovers close to the 100-watt-hour limit imposed by airlines, which could potentially lead to travel complications.


In conclusion, the Ancher 737 Power Bank offers a mix of strengths and weaknesses. Its inefficiency is a notable drawback, but its 140-watt output capability is a standout feature. Priced at around $150, it’s not the most budget-friendly option, but its premium build and reliability make it a sound investment. Its clear visual display adds to its appeal.

Travelers should be aware of airline restrictions and watt-hour capacity, as the A1289 Power Bank skirts close to the 100-watt-hour limit. It’s a device that, with proper marketing clarity, could stand out even more in the market. Overall, it’s a solid choice, provided you understand its limitations and strengths. Check out the latest price of Ancher 737 Power Bank.


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Abdel Editor at I've been writing about the tech industry for many years and my favorite topics to cover include Big Tech, media, and gaming.