I am reviewing Billion Power bank( 10000Mah) after using it about 10 days. Billion brand is co powered by flipkart. This is capacity of 10000 mah with 3 ports I was able to charge my 3 phone at the same time. It support output battery upto 5V / 2A.
This is very light weight powerbank which is east to carry out. It comes with Lithium-ion battery. It can easily charge any phone upto 3 phones fully or 3 times 1 phone fully. It comes with led torch which anyone can use in emergency and battery indicator shows the remaining battery in the battery. It comes with warranty of 1 year with free repair. Charging cable was included in the box.
My Opinion- Everyone who loves to travel should buy this product. It priced at Only Rs 699 at flipkart. This is good product with great battery backup.