11 Best 20000mah Power Bank 2023 – Best Portable Charging Devices

Today’s Review: The best 20000mah power bank with portable charging. When you’re going outside, you need long-lasting charging for your devices in your worst time.

The 20000mah is perfect for charging when you’re out of the home. Although buying the best portable charger might be straightforward at first sight.

If you thinking to buy a cheap 20000mah power bank and portable chargers, you are in the right place.

Here we’ll give you a detailed guide on the cheap power bank and portable chargers. When you are searching the power bank lot of charging devices open.

And, you are confused, because the result list appears with different capacities power banks.

The ideal charging power capacity is  (10,000 – 50,000)mah. Which are used to charge laptops, mobile, play stations, and many more.

Market size of 20000mah Power Bank in the United States 2014-2025

Source: Statista 2023

This statistic shows the market size of power bank in United state 2014-2025.  In 2023, the U.S. power banks market has a size of about 1.99 billion U.S. dollars.

What Is Power Bank?

The power bank is a device that charges another electronically powered device when you’re on the go. It is a small, pocket-fit charging device and has a highly powered charging capacity.

The power bank is used to charge other charging devices smartly. Power banks are used to charge Laptops, Tablets, Smart Mobile Phones, Speakers.

It really useful device in your worst time. Different types of power banks use nowadays, according to their capacities.

What is mAh (Milliamp Hours):

The most important feature of a power bank is its charging capacity. Which is measured in mAh (milliamp hours) and reflects its storage capability.

In this perspective, mAh is used to describe the total amount of energy that the battery can store for a specific amount of duration.

The most common power banks range from 10,000 mAh to 50,000 mAh.

But now, technology improves, power banks will be able to increase their storage capacity, going toward 50000 mAh and beyond.

Comparison of the Best Power Bank 20000mah:

1. Imuto power bank with LED Flashlight:

Imuto power bank with LED Flashlight

Imuto 20000mah Portable chargers compact power bank is a high-capacity power bank. Providing safe and secure charging. Efficiently charging all devices like laptops, mobile, iPad.

If you are looking at a fast and safe power bank Imuto 20,0000mah power bank is a good choice for you. Like other portable chargers brand vivo power bank 20000mah flipchart, Samsung power bank 20000mah. It will be available in black and gold, white and red, or 5.1 x 3.07 x 1.18 inches in size. Also, have a

2. Xiaomi 20000mah Power Bank:

Xiaomi 20000mah Power Bank

If you are an outdoor lover and want a reliable power source with you in a remote area. Then the Xiaomi 20000mah power bank is the best power source that charges your devices in the worst time. This device is specially designed for outdoor activities. The Redmi power bank 20000mah is built with a high-quality compact design. It has fast-charging power.


Some important features are:

  • Built with Durable and strong solid design.
  • Bright flashlight large compact design.
  • High capacity charging.
  • Comes with smart USB ports.
  • Best for multi-devices.
  • Two types of input or output ports.
  • Quite heavy than others.


3. RAV 20000mah Power Bank:

RAV 20000mah Power Bank

You heard about different Company power banks and chargers. RAV power bank is a secure charging device, that capacity is 20,000 mah. It is a charging solution in your worst time.

RAV Power bank 20000mah has also a variety of charging devices and accessories.


Some important features are:

  • It built up multifunctionality 2.5x fast charging.
  • Multiple devices are charged through it.
  • The display screen intelligently shows the actual status of charging.
  • 18w PD and QC output charging speed.
  • An output port is 3.0 QC.
  • IOS, android, wireless charger.
  • Slim power bank 20000mah.
  • High capacity.
  • Only takes three hours to recharge.
  • Compatible with laptops
  • Only two USB ports.


4. Water-Proof Soaraise Solar Power Bank:

Water-Proof Soaraise Solar Power Bank

Solar charger Power Bank 20000mah can be a robust companion for any adventure lover. It’s designed to be used outside, Making it great for a hiking trip or an environment with limited use of electricity. Its large capacity allows you to charge your smartphone more than 10 times, So you’ll never have to experience a dead battery again. It’s also a great way to be more environmentally friendly. The Soaraise 25000mah power bank is compatible with all 5V devices, Including an iPhone, iPad, Samsung, Sony, Huawei, HTC, LG, Nexus, tablets, cameras, GPS, and more. Solove a5 power bank 20000mah flexible charger.


Some important features are:

  • The best quality is it can be charged anytime anywhere.
  • Soaraise has solar-charging technology and a high-power capacity.
  • Its flexible design allows you to unfold the solar plates to rest on your back while you’re walking.
  • Solar charging technology
  • The flexible design of the solar power bank.
  • Built with waterproof quality.
  • Recharges slowly.
  • The solar power bank is quite heavy.


5. Anker 20000mah Power Bank and Portable Chargers:

Anker 20000mah Power Bank and Portable Chargers

Anker Power core speed 20000mAh power bank can charge in minimum time. It will come with ultra-high speed and capacity. It has a USB port that makes it multifunctional, You can easily charge laptops, smartphones, and headphones through it.

18w high-speed charging port makes it more intelligently efficient. You can easily charge your devices in your busy time no matter where you are. High-speed charging efficiently charges your multi-devices. You can easily put the portable charger in your pocket during traveling and other work. nIt intelligently working with ultra high speed and advanced safety options.


Some important features are:

  • Build up ultra-high capacity and fast speed.
  • The  USB-C  supported both the output and input port.
  • Provide optimized charging.
  • Charge multiple devices like, speakers, Bluetooth earphones, headphones.
  • Easily put in pockets when you are traveling.


  • Slim and smart.
  • Ability to charge 4 devices at a time.
  • Fast charging
  • High capacity.
  • Slightly heavy.


6. RAV Power Bank with AC Outlet 30W:

RAV Power Bank with AC Outlet 30W

RAV 20000mah power bank is a powerful device. You can use it as a USB hub as well as a power charger with compatible devices. It also supports extensive devices including Android and Apple.

The AC outlet is perfect for those devices that have a rating of 30W or less, like laptops, a Macbook, and a wide range of gadgets. It takes only three hours to recharge because I see emts a 30W Power Delivery 3.0 USB-C input/output ports.

Also, You can charge your devices in three different ways:

  • Through the AC outlet.
  • The 18W Quick Charge 3.0 USB-A output port.
  • Either through the bidirectional 30W PD 3.0 USB-C input/output port.


Some other features are:

  • It’s not a heavy-weight it’s just a 1.46 you can easily carry anywhere.
  • RAV is a durable and portable power bank with a 60cm USB-C to USB-C cable.
  • The building and durability are too much cool.
  • It is made of premium plastic that offers protection against scratches and drops.
  • Only take three hours to recharge.
  • 30W max AC outlet.
  • High capacity.
  • Fast charging through all ports.
  • The adapter is not included.


7. Mi Power Bank 20000mah:

Mi Power Bank 20000mah

Mi 20000mah Power Bank is the best compact small charging device, that makes your time enjoyable. It is extremely small in size. Mi Power bank is the ideal charging gadget that you can carry anywhere. The weightless feature also provides you a safe charging. If you want to charge any device, This may be the best charging device for you. For further Mi Power Bank 20000mah instruction, And Mi power bank 20000mah visit mi store.


Some important features are:

  • Support quick charging technology.
  • Smart power management.
  • Advanced 12 Layer chip protection.
  • 20000mAh Lithium Polymer battery.
  • Dual input port (Micro-USB/USB-C).
  • Best charger for mi 20000mah power bank.
  • Triple port output.
  • 18W Fast Charging.
  • High-Density Batteries.
  • Low input/output rating.


8. INIU Power Bank 20000mah:

INIU Power Bank 20000mah

INIU 20000mah Power Bank is the most famous Power Bank. It is an upgraded model that comes with the latest technologies. It is being used worldwide. This new upgraded model comes with a type C port.

The most interesting features are the 20W PD3.0 QC4.0 Fast Charging LED Display. Like jackery 20000mah power bank, INIU portable chargers led display 20000mah power charger also has an ultra-fast charging feature in minimum time.


Some important features are:

  • INIU portable chargers have high-speed with dual extended output battery pack and a backup flashlight.
  • Ultra-slim Dual 3A USB output and dual input port type C.
  • Micro USB cable 3A QC fast charging.
  • 2 USB ports.
  • Fast charging.
  • Take minimum time to recharge.
  • Over heating risk.


9. Crave Plus Pro-20000mah Portable Charger:

INIU Power Bank 20000mah (2)

The Crave plus has a 20000mah capacity, which charges a smartphone up to 6-8 times. It also handles high-power devices. The power and voltage are pretty impressive.

Crave 20000mah power bank can be fully charged within 3-4 hours. The 30 watts is the maximum charging speed for any single port. Some silent features are presented.


Some important features are:

  • It has an input/output USB type C port and two output USB type-A ports.
  • The Crave Plus PRO PD measures only 7 inches long, 3.24 inches wide, and 0.72 inches thick.
  • Quick charging with smart, efficient, and easy-to-use power bank.
  • Compatible with iPhones, smartphones, laptops, and other devices.
  • It has a simple shiny button, with a row of LED light indicators below.
  • Slim design with aluminum casing.
  • Efficient to use with fast charging.
  • It comes with both QC&PD technologies.
  • Compatible even with high-power laptops.
  • It’s pretty heavy.


10. Anker Power Bank Core Slim:

Cheap 10,000 mAh Portable Chargers

Anker Power Bank 10000mah support power delivery. USB-C ports can charge up to 18W. And USB- A ports can charge 12W. It is a small device you can easily put in your pocket where ever you are. The size of the power bank is the same as your mobile and light in weight. It also has power safety protectors. It is designed with high-quality hardware and chip. Ankur slim power comes with an 18-months warranty and is easy to approach.


Some important features are:

  • It designed a high-quality power protector
  • High-speed charging technology.
  • High durability and reliability.
  • Fast charging power device.
  • Compact size.
  • Durable design.
  • Chances to overhead
  • Single charging port.


11. Xiaomi 10000 mah Power bank:

Xiaomi 10000 mah Power bank_

Xiaomi 10000mah power bank is a decent charging device. It is the thinnest device of its class.Pretty handy device compatible with devices that support QC 2.0 and QC 3.0 technology. Xiaomi has one USB-C input port and one USB-A output port. It also comes with USB-A, micro USB cable and micro USB to the type-C adopter that allowing to charge any device.


Some important features are:

  • Xiaomi provided 10W fast wireless charging.
  • It supports a 10000mah wireless power bank based on Qi standards.
  • 10,000mah power bank comes with a USB Type-C input.
  • It also has advanced layer chip protection that protects incorrect insertion, overheating, over current, and short circuits.
  • The Xiaomi pro power bank is heavier than the Anker 10000 mah power bank.
  • Built-in super quality.
  • Fast charging timing.
  • Supports QC2.0/QC3.0
  • It has only one USB type C port for input.


How to Choose a Cheap 20000mah Power Bank

Canva 200 Design Milestone Badge

A 20000mah cheap power bank is an essential electronic gadget that makes life the easiest. It is also useful for traveling anywhere.

So, cheap power banks play a vital role in a harsh situation. Most people know that a power bank is a high-capacity voltage charging device.

Sometimes they are dangerous and sometimes not but it depends on the situation.

And Now, I will guide you how to choose the best 20000mah power bank.

Detailed guide

Here are some tips! You chose the best quality power bank 20000mah and portable chargers according to your need and requirements. When you are going to buy a power bank, you consider the three things about the product.

Capacity, Price, Performance, considering these things you will find out the best power bank according to your need.

For example, if you are searching for a power bank 20000mah or 10,000mah power bank. You might consider these things. Firstly, you consider the charging speed. And the second things to be conciderd, To check the self-turn on-off notification when device is fully charged.

  • Charging USB ports.
  • Weight and size.
  • Indicator LED lights system.
  • Must check out the Warranty.

Reason to Buy:

  • Charge multiple devices.
  • To Purchase easily.
  • Carry them anywhere.
  • Charge devices in minimum time.
  • Durable charging device.
  • User friendly.
  • Compact and small.

Reasons to Avoid:

  • USB charging.
  • The battery continuously draining.
  • Not useful for everyone.


In this review, almost all the key aspects of the cheap 20000 mah power bank is described according to the prospective buyer’s needs.

These portable chargers are useful because most of the chargers charge multi-device like RAV 2000mah power bank, Anker power bank,

And some to charge heavy devices like laptops, MacBook etc.

20,000 mah power bank is perfect if you’re looking for something that will last throughout the day while you’re on the move or on vacation. It will help in every situation.

It makes life easier and also includes fashion accessories. It’s the best device for outdoor activities.


What does mAh stand for?

mAh stands for “milliampere-hour,” which is a unit of measurement used to describe the amount of electrical charge a battery can hold. It is commonly used to measure the capacity of rechargeable batteries in electronic devices such as smartphones, laptops, and tablets. The higher the mAh rating, the longer the battery can typically last before needing to be recharged.

How many charges do you get with a 20000 mAh power bank?

The number of charges you can get from a 20000 mAh power bank depends on the capacity of the device you are charging and the efficiency of the power bank. However, here is a rough estimate based on the assumption that the power bank is 100% efficient and the device being charged has a battery capacity of 3000 mAh:

20000 mAh / 3000 mAh = 6.67

This means that you could get approximately 6-7 full charges for a device with a 3000 mAh battery capacity from a 20000 mAh power bank. However, keep in mind that actual charging capacity may vary depending on various factors such as the age and condition of the battery in the device being charged, the usage of the device during charging, and the quality and efficiency of the power bank.

Can a power bank damage your phone?

Using a power bank to charge your phone is generally safe and will not cause damage to your phone, as long as you are using a high-quality power bank that is designed to work with your phone’s specific charging needs.

However, using a low-quality or counterfeit power bank can potentially cause damage to your phone, as these products may not be designed to meet safety standards and may not regulate the charging process properly. Additionally, using a power bank that is not powerful enough for your phone’s charging needs can cause slow charging or incomplete charging, which can impact the overall health of your phone’s battery.

To avoid any potential damage to your phone, it’s important to choose a high-quality power bank that is designed to work with your phone and to follow the manufacturer’s instructions for charging your phone. You should also avoid using damaged or frayed charging cables, and make sure to monitor your phone while it’s charging to avoid overheating or other issues.

How do you know if the power bank is fully charged?

Most power banks have LED indicators that display the current charging status. Here are some general ways to determine if a power bank is fully charged:

  1. Check the LED indicator: Many power banks have LED lights that indicate the charging status. When the power bank is fully charged, the LED indicator will typically turn off or show a solid light.

  2. Check the charging time: The charging time of a power bank can vary depending on the capacity and charging speed. Most power banks take around 4-6 hours to fully charge. If you know the charging time for your specific power bank, you can check the time to see if it has been fully charged.

  3. Use a voltmeter: A voltmeter can be used to measure the voltage of the power bank. When the power bank is fully charged, the voltage should match the manufacturer’s specifications.

Do I need to charge the power bank longer for the first time?

The charging time for a power bank can vary depending on the capacity and charging speed, but there is generally no need to charge the power bank longer for the first time.

It’s important to follow the manufacturer’s instructions for charging your power bank, which may include recommendations for the initial charge. Some manufacturers may recommend fully charging the power bank before first use, while others may indicate that the power bank is pre-charged and ready to use right out of the box.

In either case, it’s important to avoid overcharging or undercharging the power bank, as this can potentially damage the battery and reduce its lifespan. It’s also important to use a compatible charger and charging cable that are designed for your power bank and to monitor the charging process to avoid overheating or other issues.

Can I charge my phone via a power bank that is still getting charged?

It depends on how much charging power your phone uses compared to the charging power of the power bank. If the charging power is not the same, you may notice that one or the other device is even discharging.

Is it better to buy one 20000 mAh power bank or two 10000 maH?

It is better to go for one quality 20000 mAh power bank since it offers higher capacity, you do not need to charge frequently, and it is much easier to carry than two power banks.

How long does a power bank last?

If you take care of it properly and always store it in a cool and dry place after each use, your power bank can last for several years. In case you use a power bank multiple times every day, the battery performance will eventually degrade the same as the batteries on other devices.

What styles of power banks are available on today’s market?

There is a total of six styles you can choose from – aluminum, card, leather, mini, LED, and wooden power bank.

Here are some other great picks available on Amazon: