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In this article, you will get the ultimate guide to Xiaomi power bank gen 2 vs gen 3. Xiaomi is a leading electronics manufacturing brand known for its unbeatable prices and excellent service. It usually deals with all home appliances, mobile phones, smart watches, electronic accessories, and appliances.

One of the most selling products is the power bank. It is used in emergencies to charge mobile devices. It consists of lithium polymer batteries that provide power back to your devices. 

Recently Xiaomi introduced the latest 3i technology in their 20000 mAh power bank, which is considered more reliable, faster, and offers more features. But some people consider it similar to their previous 2i technology. Well! They have a lot of similarities but some major differences as well.

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Here you will find the comparison between Xiaomi Power Bank Gen 2 vs Gen 3 both of them.


One of the most common things that people are looking for while buying power banks is the price. The MI is known for its unbeatable price. No other brands can compete with Xiaomi in terms of affordability. The price of the latest 3rd generation technology of power banks is little more than the 2nd generation.

The 10000 mAh power bank comes in around INR 800 and 20000 mAH in INR 1400. Whereas the 2nd generation 10000 mAh comes in at INR 800 and 20000 mAh is about INR 1500. The price difference is not much. Let’s move to other aspects. That means in terms of price, both are similar.

Note: The prices mentioned above are as per the time of writing the article. For the latest prices, check out the internet.


Both the power banks, i.e., 2i and 3i, offer the same battery capacity. There is no difference between them. More importantly, these power banks are equipped with lithium polymer batteries which are highly efficient and faster. Also, there are advanced resistors and sensors. It will enhance the transformation rate of charge and stabilize the discharge voltage as well. 

The only major difference between the power banks is that the 3i technology allows you to charge three divides simultaneously, whereas you can only charge 2 devices with 2i technology simultaneously.  

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Xiaomi Power Bank gen 2 vs gen 3: Features and Specifications:

This is the most important aspect that will determine the major differences between the newly introduced 3rd generation technology of power banks vs. the previously existing 2nd generation technology. 

Both the MI power banks have a slim size but do not compete with the brands like Syska and Urbn. But the slim design is seen in the 10000 mAh power banks, and the 20000 mAh power banks are quite bulky and big. You can not keep them in your pocket, whereas you can easily keep the 10000 mAh power banks in your pocket.

The design and manufacturing of both technologies are the same, and there is no major difference; just the things that change are the input and output of the power bank. By seeing them, you can not determine whether it is equipped with 2i or 3i. The 20000 mAh power bank of both technologies weighs around 432 grams. 

In the 2i version of the Mi 10000 mAh and 20000 mAh power banks, you will see the Micro USB input and USB-A outputs. There is no type-C output in the 2i technology power banks. At the same time, the latest 3i technology is equipped with the built-in Type-C output port, Micro USB input, and USB-A outputs. But you will see the type-C output only in 20000 mAh power banks because it requires a high power supply. 

The latest 3 res generation comes with 12 layers of security, whereas the previous 2nd generation power banks come with 9 layered security. That means the new generation of technology offers more security and protection.  

The MI is known for manufacturing smart appliances and devices like the power bank. These are equipped with a smart power supply that will prevent any damage to small devices like smartwatches and wireless earbuds. You can keep them on charging with both 2i and 3i power banks. 

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How many times does the 2i vs. 3i charge the mobile devices?

Well! It depends upon the capacity of the power banks. The second-generation and third-generation power banks have similar charging times, and there is no difference between them. The 10000 mAh power bank can charge the Apple iPhone 11 pro which has a better capacity of around 3110 mAh, about 2.2 times. This means the 10000 mAh power bank offers 7000 mAh capacity.

Whereas the 20000 mAh power bank is powerful and has more capacity. It easily charges the same apple device around 5.3 times. That depicts that a 20000 mAh power bank offers 1700 mAh capacity. So, 2i and 3i have no major difference in terms of battery. 

Charging time 2i vs. 3i

The power bank is equipped with i3 technology and can easily charge within 4 hours when connected with the 18-watt charger. But the output must be DC 5.1V/2A, 9V/2A, 12V/1.5 A. And in 6 hours, if connected to the 10-watt charger with DC 5.0V/2.0A output. 

On the other hand, the power bank with 2i technology is quite slow and takes more time to charge from 0-100%. It will take 30 minutes on round figures if connected with the charges as mentioned above. 

Input and Output

When it comes to input and output, the 3i technology has taken over the 2i technology. You will plug in three devices simultaneously on the 3i power bank, and the output speed is more. Also, there is a type-C, and micro USB ports are given, allowing more compatibility with additional devices. 

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Which one to buy:

2i or 3i? As there are not many changes and modifications in the newer version of power bank technology. Slight changes are introduced. But still, the 3i is better than 2i in many terms. As it is more protected with 12 layers of security, it offers a Type-C port, and the prices are almost the same. At the same price, you will get a better thing.