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Top 12 Best Power Banks In India (2020)

Edited by Piyush, Reviewed by Shashank

Looking for the best power bank in India ?

Great! how often have you been caught in a situation wherein you badly wanted to use your smartphone or tablet but had no other choice than regretting not charging it?

While travelling to a particular destination, we love to watch videos or listen to our favorite music. It is only possible when you have a good power backup on your phone.

Thanks to the power banks, you can now keep your smartphone charged for a long time. The gadget market today offers a plethora of Power banks, incorporating improvised features.

Power Banks can help us in the time of crisis, when we need our smartphone with full charge. You get the liberty to forget charging your phone if you have a power bank.

With so many options available to choose from, there always remains confusion about which is the best power bank brand in India or most worthy.

Best Power Banks

For a better understanding, you need to check out the buyer's guide section, How to choose the best power bank to buy?

Factors such power capacity, number of input and output ports, damage protection, compactness, design, battery life, battery certifications, warranty and even the design are considered while buying a power bank.

Besides, the individual requirement varies in accordance with which one is the best power bank in India, for a particular smartphone model.

We Highly recommend you to read the Power Bank Buying Guide at the end of this article to get in-depth knowledge about latest Power Bank technologies and  tips on making an informed decision about which product to buy for your needs 🙂

Top 12 Best Power Banks in India

Although my favorite among all is  URBN 10000 mAh Li-Polymer Power Bank but you must check all of them to make your buying decision.

 1. URBN 10000 mAh Li-Polymer Power Bank

URBN 10000 mAh Li-Polymer Power Bank


  • Model number: UPR10K BL 
  • Weight: 180g
  • Height: 90mm
  • Width: 63.3mm
  • Depth: 22.3 mm
  • Connector: Type C
  • Output ports: 2
  • Power Supply: 5 V, 2.1 A
  • Output Power: 5 V, 2.1 A
  • Power Source: USB
  • Battery Type: Polymer
  • Battery Capacity: 10000mAH
  • Fast Charging: Yes

If you are looking for a portable power bank that carries whole-day capacity, URBN Power Banks is your answer.

It comes with 10000/ 20000 mAh. They are one of the smallest yet comes with a whole day's capacity inside. 

URBN Power Bank has high evaluation lithium polymer batteries, which are slimmer than traditional batteries and makes it look sleek and travel easy.

URBN power bank is certified by BIS (Bureau of Indian Standard certified), which guarantees quality performance. 

It has dual USB ports, and it is provided with a LED light, which is an indication of the power bank's status. The actual mAh is not 10000; it can be a maximum of 6500-7000mAh. 

So, if you have a phone which is having a 4000mAh, you can charge it for 1.8 times. A phone battery having around 2500mAh can be charged up to 2.5 times and a phone having 3000mAh could be charged up to 2 times. Regarding the charging time, it could take your time at a maximum of 5 to 6 hours.


  • Compact and looks premium.
  • Good build quality.
  • Decent battery backup.
  • Pocket and travel friendly.
  • BIS certified.


  • The USB cable quality is not up to the mark.

 2. Realme 10000mAh Power Bank

Realme 10000mAh Power Bank


  • Model number: RMA137
  • Height: 150.3 mm
  • Width: 15.1 mm
  • Depth: 72 mm
  • Connector: Type C & type A
  • Output ports: 2
  • Power Supply: 5 V/2 A, 9 V/2 A (Max)
  • Power Source: USB
  • Battery Type: Lithium Polymer
  • Battery Capacity: 10000 Milliampere Hour (mAh)
  • Fast Charging: Yes

No doubt, Realme has figured out how to achieve some development in normal power banks while keeping the cost moderate at INR 1,299.

The new 10,000mAh Realme Power bank can charge both cell phones and laptops. 

It is exhilarating to hear of a large laptop getting charged with power banks, but you can do so with USB Type-C input. Stuffed with a 10,000mAh lithium-polymer battery, there is a standard USB Type-A port alongside a Type-C port, both with the greatest power yield limit of 18W.

Concerning assurance, Realme claims that there are 12 layers of security for overcharging. This is a power bank you should go for.


  • Light in weight
  • Two-way fast charging of 18W.
  • Comes with USB -A / USB C and micro -USB cable in the box


  • Can charge only one device at a time
  • Battery capacity is low
  • Has a single port of USB A

 3. Duracell PB6700 5003094 6700mAH Lithium Ion Power Bank

Duracell PB6700 5003094 6700mAH Lithium Ion Powerbank


  • Battery: Lithium ion
  • Output ports: 1
  • Weight: 141g
  • Warranty: 3 years
  • Premium build quality: Yes
  • Fast Charging: Yes
  • LED indicators: Yes
  • Dual charge technology: Yes
  • Good backup: Yes
  • Flight approved: Yes

A highly renowned brand in the Battery manufacturing sector. Duracell offers a 6700 MAh capacity with fast charging power bank with dual charge technology.

Its superior quality build comes with the compactness desired for an immense portability. It weighs just 141g, which makes it easy to carry and handle.

This fast-charging Lithium-ion battery provides extra 48 hours of talk or surf time. With 3 years of warranty provided by the manufacturer, you can stay rest assured for its longevity.

The device is provided with 4 level LED indicators that inform how much of charge in left in the power bank.

The 2.4 A input and output feature ensures that the charging is 2 times faster than through regular USB port.


  • Dual USB ports
  • 2x charging
  • Compact
  • Light weight
  • LED indication


  • Not up to the quality standards
  • Limited capacity
  • Overpriced

 4. Mi 10000mAh Li-Polymer Power Bank 2i

Mi 10000mAH Li-Polymer Power Bank 2i (Black) with 18W Fast Charging


  • Battery composition: Lithium Polymer
  • Output ports: 2
  • Weight: 277g
  • Warranty: 6 months
  • Sleek design
  • Fast charging
  • Conversion rate > 90%
  • Compatibility with a wide range of devices
  • Aluminum case
  • 9-layer circuit chip protection

mi power bank 10000mAh is the best power bank under 1000 and it is very sturdy yet sleeker than many other power banks in the range.

It has an ergonomic design that makes it easy to handle and use.

It comes with an Aluminium alloy case that provides a comfortable and secure grip that makes it best power bank in India.

Powered by a high-density advanced Lithium polymer battery, it ensures that you can keep your phone charged for hours.

The 18W fast charging, an unprecedented attribution, ensures efficient and quick charging. The fast charging feature ensures that the charging time is reduced to around 4.5 to 6 hours.

It is equipped with 9-layers of World-class circuit chip that provides protection against over-voltage, over-current, short circuit, overcharging, discharging as well as temperature resistance.


  • Superior design
  • 2-USB ports
  • Prolonged battery life
  • Damage protection
  • Universal compatibility
  • Fast charging
  • Affordable


  • Power capacity of 10000mAh
  • Average performance
  • No Type C connector
  • Longer charging time

 5. Anker Power Core A1263G12 10000mAH Lithium-ion Power Bank

Anker PowerCore A1263G12 10000mAH Lithium-ion Power Bank (Black)


  • Battery: Lithium Ion
  • Output ports: 1
  • Weight:177g
  • Warranty: 18 months
  • Premium build body
  • Highly compact
  • Fast charging
  • Multi-protect system
  • Durable
  • iPhone compatible

Power Core is the flagship series of portable charger by Anker, America’s leading USB charging brand.

If you are searching top power banks in India, this product is a perfect choice for you.

With a premium built body, it has the most advanced charging technology by combining PowerIQ and Voltage Boost technologies.

It is a revolution with multi-protect safety system that ensures secure charging in any environment. Distinguished by its unbelievable small size among-st other power banks.

It is a perfect power bank for iPhone, smartphone, and tablets. Perhaps, no other power bank offers such a capacity in such a small size.


  • Portable
  • Fast Charging
  • Value for money
  • Superior design
  • Safety system


  • Limited Backup
  • Charging issues
  • Average performance
  • Incompatible with many devices

 6. Mi 20000mAH Li-Polymer Power Bank 2i

Mi 20000mAH Li-Polymer Power Bank 2i (Sandstone Black) with 18W Fast Charging


  • Battery: Lithium Polymer
  • Output ports: 2
  • Weight: 431g
  • Warranty: 6 months
  • 18W Fast charging
  • 9 layers of Protection
  • Two-way charging
  • Stylish design
  • Smart Charging
  • Universal compatibility

Xiaomi’s Mi Power bank 20000mAh 2i, is built using PC+ABS material, providing it a comfortable grip as well as premium finish.

It has 18W fast charging feature that optimizes charging efficiency and enables quick charging.

Further, it intelligently adjusts power output up to 18W to deliver fast and efficient charging for each connected device.

It is compatible with most devices including speakers and fitness bands, etc, Which is makes it best power banks in India.

Besides, the advanced 9-layer protection provides protection against over-voltage, over-current, short circuit, overcharging, over-discharging as well as temperature resistance.


  • Dual USB ports
  • Fast charging
  • Massive power backup
  • Damage protection
  • Affordable pricing


  • Bulky
  • Slow charging
  • Not very compact

 7. Syska Power Port 100 10000mAH Lithium-Ion Power Bank

Syska Power Port100 10000mAH Lithium-Ion Power Bank (Black)


  • Battery: Lithium Ion
  • Output ports: 3
  • Weight: 281g
  • Warranty: 6 months
  • Compatible with a majority of devices
  • LED torch light
  • IC protection
  • Advanced Current shunt
  • Prolonged battery life

Syska, an Indian home-grown brand, comes up with a 10000mAh Power bank and a long battery life.

The device prolongs the battery life by modulating the pulse width, subsequently reducing the energy consumption for recharge.

It has 3 USB ports which facilitate convenient charging of 3 devices and you can considered it the best power bank for mobile.

The precise IC protection providing safety against overcharging, over-discharging and short- circuit remains an exemplification of the brand’s safety concern.

Further, the intelligent control circuit further secures the power bank by shunting the current flow during simultaneous self-charging and outputting.

It has an in-built LED torch light for illumination, it comes with excellent features that make it first choice over the top 10 power banks.


  • Triple USB port
  • Multi-protection system
  • Current shunt
  • Good backup
  • Value for money


  • Not up to specifications
  • Performance issues
  • A bit heavy

 8. Intex IT-PB12.5K 12500mAH Power Bank

Intex IT-PB12.5K 12500mAH Power Bank (Black-Grey)


  • Battery: Lithium Ion
  • Output ports: 3
  • Weight: 290g
  • Warranty: 1 year
  • Compact design
  • Durable build quality
  • LED flash light
  • LED indicators
  • Good Battery Life cycle
  • Good backup capacity

Intex, India's largest selling mobile phone accessories & Computer peripherals company by sales has come up with 12500mAH fast charging Power Bank IT-PB12.5K.

Augmented by 3-USB output ports, it provides seamless charging of three devices simultaneously. It is built of quality material and is compact with a mesh texture.

The powerful LED light indicates various power modes. It has 4 LED indicators to indicate the status of charge.

The life cycle of the power bank is touted to be greater than 500 times, offering great reliability. This one can take by you if you are thinking which is the top power bank in India.


  • Triple output ports
  • Sturdy design
  • Flash light
  • Prolonged battery life
  • Affordable


  • Slow charging
  • Slightly heavy
  • Quality issues

 9. Ambrane 10000 mAh Power Bank P-1111

Ambrane 10000 mAh Power Bank P-1111 (Black)


  • Battery: Lithium ion
  • Output ports: 2
  • Weight: 277g
  • Warranty: 1 year
  • Octagonal body design
  • Universal compatibility
  • Advanced chipset protection
  • Advanced chipset protection
  • 4 LED indicators

This 10000mAh Power bank P-1111 of Ambrane brand, known as the best power banks in India,

It comes with a high quality chipset providing overload protection, over charge protection and short circuit protection.

Thus, it is quite safe to use and handle. It has a dual USB output port and is compatible with most of the devices.

It comes with a sleek design and available at a reasonable price that makes it best power bank under 1000.

This power bank has a balanced body that provides a comfortable grip. The LED indicators show the power status and keep us informed about the backup.


  • Dual USB ports
  • Prolonged battery life
  • Supreme design
  • Value for money
  • Compatibility


  • Slow charging
  • Slightly bulky
  • Issues with LED indicators

 10. Zinq Technologies Z20KP 20000mAH Lithium Polymer Power Bank

Zinq Technologies Z20KP 20000mAH Lithium Polymer Power Bank with PD and QC 3.0 Technology (Black)


  • Battery: Lithium Polymer
  • Output ports: 2
  • Weight: 349g
  • Warranty: 1 year
  • Fast charging
  • LED indicators
  • Compatible with most of the devices
  • Ergonomic design
  • Great backup capacity
  • Intelligent Chipset

This massive 20000mah power bank by Zing Technologies comes with QC 3.0/QC 2.0 and PD 3.0/2.0 support for fast charging.

It has a type C input support besides a Micro USB input. The power bank intelligently adjusts the power output to the two connected devices to ensure efficient charging of both the devices.

With the charging time of 6 hours using 2A wall charger, it has a good backup to facilitate the charging of two connected devices.

It includes LED indicators to display the charge status. It has a matte finish body design that looks elegant.


  • Dual USB ports
  • Fast Charging
  • Massive 20000mAh backup
  • Long lasting battery life
  • Value for money


  • Bulky
  • Poor Performance
  • Issues with LED indicators
  • Quality issues

 11. Lenovo 13000mAH Lithium-ion Power Bank PA13000

Lenovo 10400mAH Lithium-ion Power Bank PA10400 (White)


  • Battery: Lithium Ion
  • Output ports: 2
  • Weight: 358g
  • Warranty: 1 year
  • Supreme matte plastic design
  • Prolonged battery life
  • Smart Control chipset
  • High conversion rate
  • Power light display
  • Universal compatibility

Lenovo is top manufacturer of electronic gadgets and also offering top power bank in India.

The gadget giant, Lenovo offers a reliable 13000 mAh capacity power bank to meet most of our charging needs on the travel.

It is equipped with dual USB ports and a smart control chip that enhances its performance to great efficiency. Manufactured with high quality matte plastic, 

it is quite sturdy and durable. It is compatible with most of the devices, that makes it the best power bank in India .

A distinguished aspect to note is that the Power bank saves the charge by shutting the charging lights off after a few seconds while charging the device.


  • Supreme quality design
  • High conversion rate
  • Prolonged battery life
  • Durable and sturdy
  • Value for money


  • Slow Charging issues
  • Bulky
  • Not up to the specifications

 12. Samsung EB-P1100BSNGIN 10000mAH Lithium Ion Power Bank

Samsung EB-P1100BSNGIN 10000mAH Lithium Ion Power Bank (Silver)


  • Battery: Lithium Ion
  • Output ports: 2
  • Weight: 222g
  • Warranty: 1 year
  • Sleek design with a metallic body
  • Portable
  • Fast charging
  • Universal Compatibility
  • Good backup
  • Durable

This 10000mAh capacity power bank is designed and manufactured by Samsung, which is a renowned Consumer Electronics Manufacturing Giant.

This device is designed with a robust technology. With a stylish design and metallic finish, this device is one of the most essential accessories you can flaunt.

It is available in two attractive color variants. It has a slim body and is pocket friendly, making it very suitable for travel and outings.

With fast charging feature, it provides a good power backup on the go. It has two USB output ports enabling charging of two devices simultaneously.

Further, it is the best power bank for smartphones and tablets which support USB 3.0 ports, and it also compatible with the best power bank for mobile.


  • Dual USB output ports
  • Fast charging
  • Compact
  • Robust
  • Value for money
  • Compatibility


  • No USB type C support
  • Limited backup of 10000mAh
  • Slightly expensive

Buyer's Guide: How to Purchase Power Banks

It is important for a Buyer to analyze the available options and consider his own necessities to search and buy the best power bank in India, that suits the budget and other requirements. 

Powerbank Buying Guide

In this context, the following aspects / key points related to the best power bank in India should be considered before;


It is the one of the most important points that should be considered while you are planning to buy which power bank is best? This is simply because it the factor which basically determines how many times your phone or tablet can be fully charged.

Measured in mili-amperes hour (mAh), it varies widely between 2000mAh to even up to 20000mAh. The maximum available range is constantly increasing due to the higher power requirements of the smartphones with advanced setups.

To choose the capacity as per your needs, consider capacity requirements of the devices you wish to charge using the power bank. A tablet usually requires more power than a smartphone or Bluetooth devices, etc.

It is imperative to note here that buying a power bank of capacity which is equal to the capacity of the device to be charged is not wise. This is simply because the power is lost due to circuit resistance and voltage conversion and sometimes due to the quality of the charging cable.

So it is advisable to buy a power bank of capacity higher than the device that needs to be charged. Further, if the capacity of the power bank is multiple times higher than the device to be charged implies, the device can be charged many times for one cycle of power bank.

Number of Output Ports

Most of the recent power banks come with multiple ports unlike the earlier ones. The power banks with multiple ports cost more but the criterion to consider here is how it can be utilized well for all your devices (smartphones, Bluetooth speakers, tablets, etc.).

Say, you are a travel buff carrying multiple devices like phone, tablets, speakers etc., you should go for a device that is equipped with multiple ports. Again, if you wish to share the power bank with friends, you should buy the device accordingly.

The advantage of a multiple port power bank is that many devices can be charged simultaneously without having to wait for the complete charging of one device. This is a commonly encountered crisis situation, wherein instead of using multiple power banks, we can buy a single power bank with many ports.

Besides, it is important to check the output current capabilities of each port. If the power backup is not too much, having multiple ports won’t make the power bank much useful.

Also you have to remember that if multiple devices are charged simultaneously, the power bank may not give the maximum current to each port, instead overall maximum current output which will be shared between the outputs.

Thus, charging multiple devices maybe result in relatively slow charging than when a single device is charged. Nevertheless, it is up to the buyer if he requires just a single port or multiple ports, but whatever you choose, make a wise decision so that you do not need to regret later.

Weight and Size

The weight and size of a power bank determines its portability. Higher capacity usually means the power bank will be heavier and larger. However, if ease of carrying and handling the device is your prime concern, then, you can select from a wide range of portable devices.

Nowadays, there have been great improvements in increasing the charge-to-size ratio of the power banks. In layman’s language, you can get more capacity in a portable power bank too. Portable power banks offer dual advantage of more capacity and portability at the same time.

There have been designs to improve the hand grip and provide the device a easy handling feature. Again, it depends on you if you really want to buy a portable power bank which is easy to carry while you travel and compromise on the capacity requirements or buy one that is good on both the fronts.

Type of Battery

There are two types of battery composition-Lithium Ion and Lithium polymer. Although they seem similar, they have subtle yet significant differences. Lithium-ion batteries have high power density but are not as durable as lithium polymer ones in the long run.

Further, they are much lower in cost than the lithium-polymer powered power banks. They are not used much today but still popular due to their lower price. Lithium-polymer batteries are sturdier, robust and are very durable. They are also lightweight, and have a lower chance of suffering from leaking electrolyte.

These are the advanced batteries and are usually made of aluminum plastic casing. They offer better performance and come with a host of advanced safety features. Most of the best power bank brand mention the composition of the battery as either of the above two.

However, since both of them offer the same on power density lines, the buyer has to choose the one as per his budget and other requirements.

Safety Features and Certifications

Considering the safety of the device and protection from damages, nowadays power banks come with over-voltage protection, over-current protection, protection against over-charging and over-discharging, temperature protection and short circuit protection.

Over-voltage protection ensures the safety of both the battery and the connected device by keeping the voltage within the recommended limit. Over-current protection prevents additional current from entering into the power bank and the current going out to the connected device.

As it is advisable not be overcharged or fully discharge the life of batteries of the power bank. Some power banks constantly monitor charge states to avert this from happening. This is protection against over-charging and over-discharging.

Although the power bank is suggested to be kept away from high temperatures, protection in case of any such situations is important, so the manufacturers test the device to by exposing them to the high temperatures and design them in such a way that they are not damaged in extreme situations.

This monitors device temperature and stops charging if the device gets over-heated. Short-circuit protection helps to stop the device from charging immediately when a short circuit is detected.

In the context of safety certifications, Power Banks with FCC, CE and ROHS certifications are reliable and prevent you from getting a fake or duplicate product. Obtaining such a certificate is a big thing since they mandate to pass safety tests.

They check whether polymer or ion batteries in the power banks are prone to explosion. It is better if the best power bank in India, we choose has such certifications.

Current Specifications

The output current rating of ports of the power bank is another crucial factor to be noted, but is generally overlooked.

The output current usually varies between 1 to 2.1A or even more. Earlier, the smartphones typically would draw 1A of current for their charging, however these days the smartphones are designed to draw higher current of 2.1A and sometimes up to even 3A.

It is advisable to look into the specifications of the mobile or the tablet you charge by power bank, before analyzing the current output of the power bank. You can look into the mobile’s plug for details on current draw.

Also, in any case, it is better to buy the power bank which can offer higher current output, since charging can be faster. Further, there’s no harm in using a higher-powered port to charge a smartphone because the connected device draws only what is required. In fact, it may even charge faster if it’s able to draw more.

On the contrary, if the current offered by the power bank is much lower than that expected by the mobile or tablet, it is indeed a long process of charging that you witness. Advanced power banks used today generally have the ability to detect and adjust the current depending on the device.

It is also important to note here that the usage of multiple ports shares the maximum output between the devices connected, as mentioned above. The input current specification of the power bank remains equally important as the output current aspect.

When the input current is low, the power bank takes quite a long time to get charged. Likewise, if the current input to the power bank is higher, it gets charged quickly. Sometimes, even though the current rating of the power bank is higher, say 2.1A, the wall charger might be able to deliver lesser, say 1A, as output.

In such a case, it is advised to upgrade the charger as it is like feeding less to the power bank which can handle a higher current. It only nullifies the advantage offered by the power bank. Thus, it is better to consider this specification of the power bank and also the wall charger output fed into the power bank accordingly.

Warranty and Service

The warranty for power banks depends mostly on the manufacturing company, place of origin etc., but it is necessary to check out the warranty period as it gives you a peace of mind. Most power banks are designed carefully and subjected to stringent tests to offer peace of mind to the buyers. 

Some warranties protect just the power bank, while others might offer to safeguard the devices you connect to it, like your phone, tablet or fitness bands but with certain clauses, like up to certain price value, as the amount should be enough to cover the types of device recommended for use with the power bank, be it a smartphone or tablet.

Nevertheless, some might not offer such peace of mind and security. Opting for such a product is always risky and also proves to be burden rather than an advantage the product offers. Thus, it is imperative we should know these aspects before buying the power bank.

Also, some power bank brands require you to register your device after purchase, by providing certain details. This should be followed to activate your warranty related details as well as returns policy and ensures that your product is genuine.

Besides warranty, it is better to look out for the service centers of the product/brand in case there are minor or major problems during the course of the usage of the device. Many of the power bank service centers might not be accessible to you.

So, it is better if you consider the availability and accessibility of the same before buying a power bank.

Brand choices

Before buying the product you must know about which is the best power bank brand in India , a large number of brands have forayed into the market. There are plenty of such brands that manufacture compatible power banks for many smartphone models.

Notwithstanding the changes, buyers always prefer to buy the known brands. But many gadget users still go for those new ones which promise more warranty and improvised features. Thus, it is vital that you chose the power bank from an authentic brand that is reliable in terms of guaranteeing the buyers against fake products.

Whether to go for renowned, multinational brands is a matter of your own choice. It is noteworthy that you should make a good background check about the product’s brand, whether the details are available or not, what are its warranty policies, customer service details, certifications amongst other relevant things. 

This holds crucial importance in the backdrop of growing incidences of fraudulence.

USB Connectors

The USB connector support should be compatible with the device you are supposed to charge using the power bank. The most commonly used connector is a USB-A. It is suitable for computers, wall chargers and other devices.

Micro USB is smaller than USB-A, and is used to charge smaller devices like Android smartphones, Kindle readers, digital cameras and similar devices. USB-C is the latest type of USB connector.

It is smaller, faster and more user-friendly than other connectors. USB-C has widespread favor these days so it might soon replace all other USB types. Devices with multiple ports support different connectors, so if you wish to use devices of varying requirement, it is better to choose the multi-port power bank.

Otherwise, choose the one which charges the device you intend to use.


This aspect still proves to be fundamental if you buying the best power bank for mobile. But, as these days the best power bank brand from various brands are competing to be the best in features, they are equally focused on bringing the power packed features within the reach of a common man.

There has been tremendous effort in reducing the pricing of the products effectively. Besides, these days the power banks are available within a narrow range of pricing variations between one another, so other aspects/features assume more importance.

The requirements of every buyer are individualistic considering his main concerns and thus it would be wise to compare the products on those aspects once you have fixed your budget range.

Now that you have an idea of the key points to consider while buying a power bank, you can prioritize the features according to your requirements and buy the best one available in the market.

Frequently Asked Questions

1.How many mAh is a good power bank?

It really depends on the capacity of the smartphone we are using. Smartphones generally come with batteries of capacity 2500-5000 mAh. In this regard, for a smartphone with a 2500 mAh battery, a 5000 mAh power bank is enough to provide a full charge. With this calculation, we can say that a power bank with 5000-10000 mAh is a good power bank to charge a smartphone at least twice.

2.Can we use a power bank while charging?

You might face a situation sometimes where your mobile's battery life and the power bank are draining at the same time. Now, you put the power bank oin charge and then connect the phone to the power bank. 
If you see the process, then power is flowsing from one device to another, and none of them is charging at a time. It is basically the simultaneous use of power at one time. So, it is suggested to charge anyone at a time. Another point is that it depends on the amount of charging power your phone uses compared to the power bank's charging power.

3.Do power banks damage batteries?

Power banks are intended to release charging capacity to your smartphone or another gadget at explicit voltages.Utilizing a power bank won't harm your smartphone battery in any capacity. 
However, as it happens with every electronic equipment, a substantial device is capable of causing damage. So, using a low-quality power bank can harm your phone battery and cause it to debase quicker than expected. A convenient charger of faulty quality can conceivably convey a lower or higher voltage than your phone is intended to deal with, and this can harm your phone's battery as well as can potentially damage other electrical circuits in it

4.How much time does the power bank take to get charged?

It takes 8 to 10 hours to fully charge 20000 mah power banks if you have 2Amp of the charger. It is advisable to charge 5000 to 20000 with a minimum of 2amp to keep a healthy power bank battery healthy and long-lasting. There's a simple calculation. 
A power bank is 20000mAh, which means it can give 2Amp for 10 hours (2*10 = 20). Now, how much time will you need to charge? It depends on the charging current. Normally the current will be 1/10th of Ah Rating. So, if your charger provides 2Amps, then it will take 10 hours for charging. But the charger will be designed for a higher current rating in most cases and would finish up the charging in 7–8 hours.

5.How many charges does 20000mAh?

To find out the answer to this, we should follow simple math.  The number of charges can be found by the division of mAh of 20000mAh power bank by the mAh of battery life. So, “hypothetically” speaking, a 20000mAh power bank can charge an iPhone 6 plus 6.9 times from 1% to 100% (20000 / 2915 = 6.9)

6. How long does a power bank charge a phone?

It relies upon numerous elements, mainly input current - voltage/Amp and charging link/source. Most cell phones like force banks are typically intended to charge devices at 5 volts at a given amp. For example, a 10000 mah power bank could get and give charge of the state, 1 Amp at 5v for 10 hours, or 2 Amps for 5 hours. For a telephone with 2500 mah battery, you can hence expect a charged season of about 2.5 hours for 1 Amp and 1.25 hours for 2 Amps at 5 volts; ceteris paribus. Nonetheless, you can actually expect misfortunes because of warmth produced and other ecological components.

7. Is it worth buying a power bank?

Your phone's battery is seemingly the most significant bit of equipment on the gadget, witnessing as nothing can happen without it. Power banks are especially valuable things to have, particularly on the off chance that you utilize your cell phone tablet, or another gadget a great deal. It isn't generally conceivable to get to a wellspring of capacity to charge all the time directly, so having a convenient power bank is an ideal arrangement. Also, if you are someone who is a consistent traveler or out for work all the time, then you should definitely carry a fully charged power bank with you.

8. What is mAh?

mAh stands for milliamp hour. It is a unit to measure electric power. It basically quantifies the battery's vitality limit. mAh is directly proportional to the battery limit. Hence, a higher number represents a higher capacity of the battery and a higher battery limit. Consequently, it implies a longer battery life. This can be used to analyze the longevity of a gadget, given its consistent (or normal) power draw rate.

9. What devices can be charged with a power bank?

Power banks permit you to store electrical vitality for later use. This stored vitality can then be pulled back from the bank and a cell phone can be charged. Power bank can charge almost anything that is chargeable by USB. It can charge a wide range of gadgets from cameras to GPS frameworks, including portable speakers, GoPros, MP3 players, and a few tablets.

10. How long will 20000mAH last?

If you utilize a 1A evaluated charger, the charging time will be multiplied to around 24 hours, which isn't excessively adequate. Vary from the traditional single information port; double info ports configuration is applied by EasyAcc 20000mAh Power Bank, which implies the charging time is divided to around 6 hours.

Here is the List of Top 12 Best Power Banks in India


A power bank can be your travel companion and a savior too, because we cannot think of our lives without smartphones or tablets. So if you decide to buy top 10 power bank in India, make sure to research well and get the best deal available in the market.


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About the Author

Piyush Kashyap is a Ph.D student at Sant Longowal Institute of Engineering and Technology, Sangrur. He is a budding editor/ writer and has been working as a part-time reviewer for online content. He loves to read tech-based articles and has a knack for reviewing such articles He likes to stay updated about the latest trends in technology. He has also been working as a reviewer for many scientific journals. He also writes articles based on science. Know More About Piyush

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