This portable charger is one of the best buy for this range.
From my personal point of view, the product is quite handy. I am using Samsung galaxy grand duos and it easily charges my phone from 0 till 80% three times. Yes, it wont charge your phone directly from 0 to 100%. If your phone is completely out of charge, it will charge it up to 80-85%.
But the only drawback is the amount of time I have to spend to charge the power bank.

using it since a while now ..very good ..if it would have two ports to charge it would have been best ..but its pretty good

WELL AND GOOD AND USEFUL FOR TRAVELLING PURPOSE. VERY USEFUL TO MOVING PEOPLE LIKE REPRESENTATIVES, SALES EXECUTIVES AND ALL EXECUTIVES...

Its relly nice product and worth buying. Price is also very good as compared to other products available in market, only drawback is its data cable is very small which come along with it.

I along with my two other friends bought this massive 10400 mAh powerbank. And this charges my phone with triple speed. Yes it is a bit heavy, but also it is 10400 mAh.
The connecting cable is USB 3.0 so it charges also transfers data very fast.

I would say this is a worth buying product. It is the best power bank in the whole market at this price.

Its a very nice and good charger. Charges your tab or phone too fast than wall charger. But output is seems to be less efficient but still good.

Well i mentioned pricey cause in the market its available in around 600rs.

Also i should say, u can get a far better charger than this one is PNY BE-740. At same price i.e 999rs only and same 10400 mah.

When i ordered first time i received both the product used one, but thanks for taking them back and returning money to my wallet.

Really helpful while travelling, charging time is high - other than that its a good product. better it should have more than a usb port.

As compare to other site Flip-kart charge more. But product is good :) I am not understand switch is required what for????

I got this today after waiting so long as flipkart mentioned that the product would be shipped once its released.
The Mi Power bank is really awesome buy for 999 you get a 10400 mAh Power Bank.
Build quality is excellent with aluminium casing and looks very premium.
After I received it and there was no charge,I charged it for 9 hours and later tested on my 3000 mAh sma...

Writing this after 5 months of usage. Excellent Build, High Capacity. Charges mobile atleast twice when in need. Faster Charging because of high current output. Tested with Andorid phones, Windows Phones and iPad mini work perfectly fine.

Because of higher capacity need over night charging. Auto Shutoff when charging self or devices.

Easy to use. only drawback for me only one device can be charged at a time due to single usb port out.

Other wise decent power bank for everyday use.

I have used dis product and very much satisfied with it ,one of the best looking and dipendable product.Light indication of charged battery is a awsome feature which is not found in other Power Banks.
A bit bulky, but worth it.