Sony CP-V3/B USB Portable Charger  (Black)

This is a good product if you know how to use it right. It takes a full 6 hours for it to charge completely. Read the manual.
Once it's fully charged it can be used to charge a smart phone to almost 2 times. Not exactly 200% worth backup but more like 150-155%
And since it is from Sony, you can expect it to be decent and last longer than the cheap ones on the market which seem to attract us more.

Good product delivered promptly by Flipkart. I only use it as an emergency backup so it's enough for my needs. Full charge of charger is done in close to 3 hrs.
Works with my LG Optimus phone and Samsung Grand just fine.

The product is really good. It's been around 2 months using it that I am posting the review. Listed below are it's goods and bads:

Pros:
-Charges phone really fast.
-Upon fully charged, can provide upto 1 and a half charges (i.e 1 phone full charged and after that around 60% in the same or different phone).
-Takes round about the same charging time as any smartphone via an AC Adapter.

Cons:
-Takes a lot of time to charge via USB cable.
-Gets heated up while charging or discharging (this isn...