Guys, I wish to add that I now use a Mi 20,000 Mah charger... The benefits apart from more charge cycles are:-
1. It has 2 USB ports for charging 2 devices at once.
2. Its taller, and made of plastic, but its still durable, and secondly, it weighs lesser than two 10400 mah chargers, so its a good deal.
3. Its pure white in color,
It has all the circuitry protection of the previous editions. I tried shortcircuiting it, but it didn't respond, which is good. It does a good job. It charges my phone approx 5 times once charged, in phone off condition. The same 4 LED lights show the 25% increments in charge left in the powerbank. Overall, a good purchase, not necessarily the most economic one at Rs. 2,199, but the product does work good.
It charges the phones very fast usually, with a 2.1A output.
It has a plastic body, but due to dotted sides, its does not easily slip out of hand, i.e. it maintains enough grip. A short USB cable was provided it, around 15 cms in length.
Anything else you want to ask, you can ask...