Karbonn which is famous for smartphones has launched 3 multi-functional power banks which are Karbonn Polymer 5 (5000 mAh) power bank, Karbonn Polymer 7 (7000 mAh) power bank and Karbonn Polymer 10 (10000 mAh) power bank. You might have already read my post in which I had mentioned the best power banks in low budget. Karbonn has not only launched these power banks, but it has also launched other accessories which you should check out. I’ll make you now the features of these 3 new multi-functional power banks which Karbonn has launched. You’ll be also able to know the availability details regarding these Karbonn power banks.