Which Power Bank Is the Best? How Many mAh Should You Buy

Most of us tend to choose power banks with high mAh. Does higher mAh really mean better? And which power bank is the best? How many mAh should you buy? Let's explore these questions with Mytour.

Why Use a Power Bank?

A power bank is an incredibly convenient electronic device in today's life. You can use a power bank to supply energy to your tablet, phone, or Bluetooth speaker anytime, anywhere.

Some other benefits of a power bank include:

• Sleek design, easy to carry
• Can charge multiple times or fill up multiple devices simultaneously (For products with large battery capacity)

Criteria for Choosing a Quality Power Bank, Suitable for You? 

Compact Design

The current market offers a wide range of power bank designs. Most manufacturers create compact and elegantly designed power banks that come with robust build quality.

In addition to the sleek design, the materials used in modern power banks are carefully chosen to enhance performance and longevity.

Explore more: Baseus Lightning Charging Cable - Quality, Fast Charging for iPhones, Competitive Prices

Battery Capacity

Currently, power bank battery capacities range from approximately 3,000 to 30,000 mAh. Depending on your individual usage needs, you can choose a suitable power bank capacity.

• If you're often on the move or your phone has a weak battery: Consider a power bank with a capacity of 10,000 mAh or more.
• If you only use a power bank occasionally: A minimum capacity of 5,000 mAh should suffice for your needs.

Charging Speed

The charging speed and time to fully charge vary depending on the capacity of each power bank:

• 7,500 mAh Power Bank: Using a 1A adapter will take approximately 8 hours to fully charge, while a 2A adapter will only take about 4 hours.
• 10,000 mAh Power Bank: With a larger power bank capacity, using a 1A adapter will take around 11 hours to charge, and using a 2A adapter will take about 6 hours.

Number of Charging Ports, Types of Charging Ports

With advancing technology, power banks come with a variety of charging ports. You can flexibly connect multiple devices using different connectors when using a power bank to save time.

Required Voltage

Depending on your mobile device, research and choose a power bank with the corresponding voltage. This will affect your safety, avoiding incidents such as device explosions or electrical fires.

Most power banks today have two charging modes:

• Normal Charging: Voltage of 5V and current of 1A
• Fast Charging: Voltage of 5V and current of 2.1A

Reputable and Genuine Brands

To avoid purchasing low-quality products and mitigate risks to safety, choose reputable brands and buy genuine products. Consider brands like Samsung, Xiaomi, Pisen, Anker, Energizer, etc.

Features and Technologies with Power Banks

Some standout features and technologies that come with power banks include:

• Automatic shut-off when the battery is full
• Fast charging technology
• LED display for battery capacity
• Flashlight feature

Warranty Policy

Warranty policies vary among brands and distributors. However, most power bank products in the current Vietnamese market come with a warranty period of around 12 months.

Best 10000mAh Power Bank

CHOETECH B627 10000mAh In/Out Type C

Technical Specifications:

• Battery Capacity: 10,000 mAh
• Dimensions: 13.5×6.7×1.3 cm
• Material: Fire-resistant PC
• Input: Includes micro USB: DC5V / 2A 9V / 2A and Type-C: DC5V / 3A 9V / 2A 12V / 1.5A
• Output: Includes Type-C: DC5V / 3A 9V / 2A 12V / 1.5A and USB-A: DC5V / 3A 9V / 2A 12 / 1.5A

Advantages:

Energizer QE10007PQ

Technical Specifications:

• Capacity: 10,000 mAh
• Dimensions: 144.1×68.8×16.5 mm
• Material: Lithium Polymer
• Input: Includes micro-USB 5V/2A and USB-C PD: 5V/2A, 9V/2A
• Output: Fast-charging USB-A port: 5V/3A, 9V/2A, 12V/1.5A; USB-C PD: 5V/2A, 9V/2A, 12V/1.5A

Advantages:

Samsung EB-P1100

Specifications:

• Capacity: 10,000 mAh
• Dimensions: 71 x 141.8 x 14 mm
• Input: Thermal conductivity capabilities 5V- 2.0A; 9V- 1.67A; 12V- 1.25A 
• Output: 5V – 2A (max 3A); 9V – 1.67A ; 12V- 1.25A

Advantages:

• Elegant aluminum alloy material.
• Two-way fast charging technology with a current of up to 9V – 1.67A, the Samsung EB-P1100 battery helps charge devices quickly, saving time.

Xiaomi Gen 2.0 10000mAh

Specifications:

• Capacity: 10,000 mAh
• Dimensions: 13 x 7.1 x 1.4 cm
• Battery Type: Lithium polymer
• Charging Support: USB-C

Advantages:

RAVPower RP-PB186 Type C

Specifications:

• Battery Capacity: 10,000 mAh
• Charging Ports: USB-A x 1 and Type-C x 1
• Power Output: 20W
• Technology: Supports PD and QC 3.0 fast charging features

Advantages:

BASEUS 10000mAh 15W

Technical Specifications:

• Capacity: 10,000 mAh
• Output: Double USB + USB + Type C
• Input: USB Type C + Micro USB

Advantages:

• Modern and compact design, compatible with various phone models.
• BASEUS 10000mAh 15W power bank features 15W fast charging technology, ensuring quick and efficient device charging.

10000mAh RPP-226

Technical Specifications:

• Capacity: 10,000 mAh
• Battery Core: Polymer
• Dimensions: 13.55×7.0x1.66 cm

Advantages:

• Belkin Pocket Power BPB011 Portable Charger offers 2 charging modes, providing convenience for different usage scenarios.
• Multiple charging ports allow simultaneous charging of up to 3 devices, catering to your versatile charging needs.

Belkin Pocket Power BPB011

Specifications:

• Capacity: 10,000 mAh
• Charging Ports: 2 USB-A ports, 1 USB-C port
• Battery Core: Polymer

Advantages:

• LED flashlight indicates battery level for easy monitoring.
• 15W power output, capable of charging 3 devices simultaneously.

Top 7 Best 20000mAh Power Banks

Anker PowerCore Select 20000mAh

Technical Specifications

• Battery Capacity: 20,000 mAh
• Input: Micro USB: 5V – 2A
• Output: USB: 5V – 2.4A
• Battery Type: Li-Ion
• Dimensions: 10 x 6.3 x 2.5 cm 

Key Advantages

• Equipped with 2 fast-charging technologies: PowerIQ and VoltageBoost.
• High battery capacity and easy dual-device charging with 5V/3A power.
• Durable polycarbonate rubber material reduces shock damage from drops.

Xiaomi Redmi Power Bank 20000mAh

Technical Specifications

• Battery Capacity: 20,000 mAh
• Dimensions: 154×73.6×27.3 mm
• Input: 5V-2.4A/ 9V-2A/ 12V-1.5A (micro-USB/USB-C)
• Output: 5.1V-2.4A/ 9V-2A/ 12V-1.5A

Key Highlights

• High battery capacity of 20,000 mAh.
• The battery shell is made of high-durability ABS plastic with a textured surface for a firm grip and safety.
• Featuring both micro-USB and USB Type-C, providing you with added convenience when using the Xiaomi Redmi Power Bank 20,000 mAh.

Romoss SW20 Pro 20000mAh

Technical Specifications:

• Battery Capacity: 20,000 mAh
• Dimensions: 16.85 x 8.12 x 2.38 cm
• USB Ports: Quick Charge 2.0, 3.0 18W, VOOC 22.5W
• Type-C Port: Convenient two-way charging, supporting PD20W standard

Prominent Features:

• Offers 3 input ports: Lightning, Type-C, and USB
• LED screen always displays the remaining power of the power bank.
• Simultaneously charges 3 devices.

Hoco J52A 20000mAh Power Bank

Technical Specifications:

• Battery Capacity: 20,000 mAh
• Dimensions: 14 x 6.8 x 2.9 cm
• Input: Micro-USB 5V/2A max
• Output: USB 1 / 2 connectors 5V / 2A
• Battery: Polymer lithium

Key Advantages:

Charges 2 devices simultaneously with 2 built-in charging ports.

ESSAGER 20000mAh

Technical Specifications:

High capacity of 20,000 mAh.

Key Features:

Large capacity of 20,000 mAh.

Robot RT23 22.5W

Technical Specifications:

Capacity: 20,000 mAh

Key Highlights:

With a 5V/2A power source, it can fully charge the battery in approximately 5.5 hours.

Samsung EB-P5300 20,000mAh 25W

Technical Specifications:

• Battery Capacity: 20,000 mAh
• Charging Efficiency: 60%
• Dimensions: 14.3 x 7 x 2.5 cm

Key Features:

• Fast charging technology paired with a high battery capacity of up to 20,000 mAh for time-saving convenience.
• Output power reaches up to 25W.

Xmobile PowerBox P69D

Technical Specifications:

• Battery Capacity: 20,000 mAh
• Input Sources: Includes Micro USB: 5V – 2A, 9V – 2A and Type C: 5V – 3A, 9V – 2A
• Output Sources: Includes Type-C PD: 5V – 3A, 9V – 2A, 12V – 1.5A and USB QC: 5V – 2.4A, 9V – 2A, 12V – 1.5A

Key Highlights:

• Simultaneously charge 3 devices.
• Large capacity, up to 20,000 mAh, providing ample power for multiple devices.

Belkin Pocket Power BPB002

Technical Specifications:

• Battery Capacity: 20,000 mAh
• Input: Includes type C: 5V – 3A, 9V – 3A, 12V – 2.5A, 15V – 2A, 20V – 1.5A
• Output: USB: 5V – 2.4AType C: 5V – 3A, 9V – 3A, 12V – 2.5A, 15V – 2A, 20V – 1.5A

Prominent Features:

• Battery capacity of up to 20,000 mAh and equipped with a safe Polymer core.
• Universally compatible with various smartphones, tablets, and more.

Key Considerations for Using Portable Chargers

When using a portable charger, take note of the following:

• Ensure to deplete the available capacity when using the portable charger for the first time.
• Thoroughly check the product to ensure the charger is dry and water-resistant, preventing potential hazards like explosions.
• Charge the portable charger while there is still power to extend its lifespan and enable timely power cutoff.
• Avoid simultaneous charging and discharging to reduce the risk of explosions.
• Use the correct type of portable charger compatible with your devices.

Frequently Asked Questions About Portable Chargers

Looking for the best power bank battery core currently?

Depending on your usage needs, select a compatible power bank with a Polymer core accompanied by numerous protective features for enhanced safety.

Considering how many mAh to get for a power bank?

Opt for a power bank with a capacity higher than your device by about 2 times. No need to choose a product with excessively high capacity.