A power bank is a handy smartphone accessory that can be carried around conveniently. These are now available for every type of smartphone, with a range of capacity, size, and price range. Furthermore, users now have the option to choose from other features like wireless charging, built-in cables, LED flashlights, fast charging and AC adapters.

Best 20000 mah Power Bank

Usually, a bigger battery bank offers more capacity as well as ports. These come in various sizes, but the ones that easily fit in a pocket are able to charge a phone to full capacity. For something that offers an all-day use, a bigger bank that can be carried in a bag is a better option. Most of the smaller batteries that maximize portability carry a capacity of about 5,000mAh and under. The best 20000 mah power bank is usually bigger in size, and portability can be a bit of a problem.

Best Power Banks Available in India 1

Another thing to look out for are the Output and Input ports available on the battery bank. This determines the compatibility with the devices that need to be charged, as well the charging speed one can expect. Even the most basic, best power bank in India offers a  standard USB-A port for both input and output. In some cases a user may also find a USB-C port, to accommodate the newer generation of smartphones. 

The best power bank in India

Since battery output is measured in voltage and amperage, it is necessary to understand the difference before making a purchase.  Amperage is the current, or the amount of electricity that  flows from the battery to the device connected via the port. Voltage is the amount of potential energy stored.

Best Power Banks Available in India 3

The measure of the total power of the device, which is known as the wattage, is calculated by multiplying the volts by amps. To facilitate faster charging,  manufacturers can vary the voltage or boost the amperage, thereby increasing the total wattage of the device.
For fast charging, 3 things are required – a battery and cable, a charging circuit that works with fast charging, and a phone or device. The standards of all 3 devices must match for compatibility.


Another factor is the Quick Charge option, where the amperage is more than the voltage. These allow for a quick charge, which is suitable for emergency charging, but is not ideal for all-day backup. The charging circuit of all phones are designed for a certain amount of power, so if a phone has a capacity to handle 5V/1A charge, it will not charge faster, even if it is connected to a 5V/2A battery.

Best power bank in India 2020


Here is Tech Thirsty’s answer to the question – which is the best power bank in India :

MI 20000MAH 2I

Xiaomi offers a 20000mAh Mi Power Bank 2i that features a great quality and an innovative design,  along with a high output capacity. This high-capacity power bank offers faster, and more charges on the go. It is able to support dual USB output, and facilitates the simultaneous charging of 2 devices. This device weighs 358 gram

The specs of the Xiaomi 20000mAh Mi Power Bank 2i are as follows : 

Capacity (mAh)20000
Connectivity TypeLithium polymer
Battery Type20000
Dimensions149.5 × 69.6 × 23.9mm

DURACELL PB10050

Duracell, a brand famous for its batteries, offers a battery bank that can be charged while it is charging another device. It also has protection circuits and is the only one in the market that  offers a three year warranty period. It is also pre-charged before being packed and shipped – so it can be used straight out of the box. 

The specs for the Duracell PB10050 are : 

Capacity (mAh)10050
Battery Type10050
Dimensions8.00 x 2.50 x 9.20

SYSKA P1016B POWER POCKET 100

SYSKA P1016B Power Pocket 100 10000 mAh offers a Dual USB output/ type-c input/ micro USB input. The output is of 5V=2.4A. It comes with a battery indicator, Intelligent-multi-protection circuits, an advanced current shunt/overcharging, as well as discharging protection.

Best Power Banks Available in India 2


It weighs a light 285 grams, making it very portable, and also offers a 6-month warranty. 

The specs for this battery bank are as follows : 

Capacity (mAh)10000
No. Of Ports2
Connectivity TypeLithium Polymer
Battery Type10000
Dimensions9.1 x 6.3 x 2.3 cm

AMBRANE P-1111

Ambrane 10000 mAh Power Bank P-1111 offers a single input and dual outputs. It is compatible with tablets, iPhones, and smartphones. The sleek appearance comes from the elongated octagonal design. This battery bank has a multiple chipset protection feature for enhanced protection from short-circuits.
The specs for this light weight (277 grams) power bank are : 

Capacity (mAh)10000
No. Of Ports2
Connectivity TypeLi ion
Dimensions140.7 x 62.3 x 22
Overcharge ProtectionAvailable