Pros
High capacity of 20,100mAh can charge devices multiple times
Well-built and durable
Reliable with a long lifespan
Dual USB outputs allow charging two devices simultaneously
Efficient power conversion with 92% available capacity
Good performance even after years of use
Excellent customer service and warranty support from Anker
LED indicators for remaining capacity
Comes with a useful carry pouch
Cons
Larger and heavier than other portable chargers
Slow to recharge, takes about 9-10 hours with a 2A charger
Occasional quality control issues (e.g., unit stopped fast charging after a few months)
Main Product Advantages
10 Reliability
This power bank is often highlighted as one of the most reliable on the market, capable of withstanding daily usage and even some wear and tear, such as drops and impacts.
10 Capacity
With a capacity of 20,100mAh, it can charge phones multiple times before needing to be recharged, making it highly dependable for extended periods without access to electricity.
9 Build Quality
Users appreciate the solid, well-built design, noting that the unit is durable and feels premium despite frequent use.
9 Efficiency
The unit offers excellent efficiency, maintaining around 92% of its listed capacity, which is higher than many competitors.
9 Customer Service
Anker’s customer service is noted to be highly responsive and effective in resolving issues, often replacing faulty units promptly.
8 Dual USB Outputs
The two USB ports allow simultaneous charging of two devices, which is especially useful in scenarios where multiple devices need power.
8 Lifespan
The power bank has been found to have a long lifespan, with some units lasting several years. However, some users have reported issues with fast charging after several months of use.
7 Portability
Although slightly larger than other portable chargers due to its high capacity, it is still compact enough to fit in a purse or backpack, not suitable for pocket carry.
7 Included Accessories
The product includes a short micro USB charging cable and a carrying pouch, though some users find the cable insufficient for faster charging needs.
6 Charge Speed
While the power bank can charge devices effectively, its own recharge time is relatively long, taking around 9-10 hours for a full charge.
Anker 20,100mAh Portable Charger Review
The Anker PowerCore 20100 is a high-capacity, long-lasting, and portable power bank designed to meet all your charging needs. Model number A1271, this charger is a part of Anker's extensive line of USB charging products, known for their speed and safety. With over 50 million users worldwide, Anker continues to deliver satisfaction with this performance-packed device.
Ultra-High Capacity
This power bank offers an impressive 20,100mAh capacity, enough to keep your devices powered for days. It can recharge an iPhone 8 almost seven times, a Galaxy S8 five times, or an iPad Mini twice. Such an enormous charge capability makes it an ideal companion for travelers and those on the go.
High-Speed Charging Technology
Thanks to Anker's exclusive PowerIQ and VoltageBoost technologies, the PowerCore 20100 ensures that your devices charge at their maximum possible speed. Note that this device does not support Qualcomm Quick Charge, but the high-speed charging is exceptional nonetheless.
Enormous 4.8A Output
With an industry-leading output of 4.8 amps, this power bank can simultaneously charge any combination of devices at full speed. Whether you need to top up your phone, tablet, or another USB-charged device, the PowerCore 20100 handles it with ease.
MultiProtect Safety System
Safety is paramount with Anker. The PowerCore 20100 comes with a MultiProtect safety system that includes surge protection, short circuit protection, and many other advanced safety features to ensure both you and your devices remain safe.
Matte Finish
The matte finish of the PowerCore 20100 not only enhances grip but also prevents smudges and fingerprints, keeping the device looking clean and sleek.
World Famous Warranty
Anker backs their products with an 18-month warranty, demonstrating their confidence in the PowerCore 20100. The company also offers friendly and easily accessible customer support.
For Optimal Use
To get the best results, it's recommended to use the included cable, your original cable, or a third-party certified one (e.g., MFi). Note that an AC adapter is not included. For charging Apple products, please use your original Apple charging cable. The device is compatible with most USB-charged devices, including iPhone 8 / X / XS / XS Max / XR (Lightning cable required), Android smartphones and tablets, USB-C MacBooks, and iPads (USB A to C cable required).
In the Box
The package includes the PowerCore 20100 Portable Charger, a micro USB cable, and a welcome guide. Please note that the charging adapter is sold separately.
Conclusion
The Anker PowerCore 20100 is a robust, high-capacity portable charger that combines safety, speed, and ease of use. Its impressive 20,100mAh battery can keep multiple devices charged for days, and its high-speed charging technology ensures you are never left waiting. The MultiProtect safety system provides peace of mind, and the matte finish keeps the device looking pristine. With an 18-month warranty and exemplary customer support, the PowerCore 20100 is an excellent investment for anyone in need of reliable portable power.
