Pros :-
1) metal body construction makes it a lot sturdy.
2) good to chrge a normal battery 2 times.
3) Sturdy for rugged use.

Cons :-
1) only 1 usb port.

But all in all a good buy for the pric

This is fairy good power bank(5200mah) for the price. I Am giving 4 instead of 5 stars because I thought it would charge my Asus zenfone 5(2110mah) upto >200%(2 cycles) but acutally it charges upto ~170%(2 cycles). But its fair,decent and satisfying for the price.

I recommend to buy this Product. If not satisfied with this product try the other one the 10400mah for more than 2 cycle charge.

A very good product in this price range. Although I am doubtful whether it is 5200 mAh. The output is specified as 1500mAh in the device. Works fine with my phone which uses 1300mAh charger, but an additional 1000mAh output socket would be highly appreciated for lower end phones which have a slow charging rate. Overall good product.

Good product delivery is as usual very fast by WS Retails.
I always recommend to all to buy with WS Retails.
Power bank is good and its full charge my asus zen phone 2 times.
But its taking long time to charge because its giving only 1.5amp output.

I have used the product only thrice till date and I am content with the recharging speed. It is quite fast and charges the phone more in less time. I felt the design could have been a better one - instead of metal outer layer, they could have made the product out of plastic fiber. It would be have been a bit lighter as a result.

The moment you plug in the phone for charging, it starts charging. No need to press the power button.

I bought the 5200 mAh power bank, relatively descend job done by flipkart in delivering the product within 6 days..
The build quality is very good feels like i'm holding a premium product, not too heavy, as far as the charging is concerned it charges my Sony Xperia L 2 times and still ends up with some charge left in the power bank. The bad thing about the product is that it takes about 5-6 hours to charge the power bank itself. Otherwise its the best product in the market at this price....I ...

This is simply amazing.....
Its LED features are nice and easy to understand....
Its really a good product from xiaomi.....

this is a power bank worth buying.
i had both the same with my redmi 1S and it has always giving me a good back up.
the product delivers 5200mamps of supply if not heated, as my phone heats up i suppose some of the power is also lost in the heating process.
but never the less it always charge my redmi 1S a little more than 2 times, which is sufficient for me and work exceptional every time i use it.
i am happy with the product and i will recommend this product to all who read my review an...

Yes its the best one u can get in this price.
bt if u buy this u should have a 2amp charger with u. or else normal charge will take weeks to charge it actually may be couple of day may be.
But its important believe me a 2amp charge it take 5hr to get fully charged
and gives whole day backup ur all day out with an 1400maH mobile phone
i rate it 4 coz its cost me to have a 2amp charge for it.

First of all i had ordered a 10400 mah power bank that did not work so i returned it and got a refund. Besides that the 5200 mah thing is a lot more handy than the 10400 it becomes easier to carry it and also the backup is more than what an average user of a phone would need i use it with my moto x and it can charge it twice fully in a day which i guess no one really requires. Go for the 5200 mah the 10400 mah is too bulky for any user to be honest