I have used this power bank 2 month. I have purchases this product on offer(RS.600) . This USB cable very bad quality. After use 2 week USB cable are totally damage. It take to long time to charge this power bank. its so heavy to others power bank . so much problem to carry .indication light is so small. U used this power bank minimum 2 days . u have 2 mobile fully charged to through this power bank. after used few month this power bank switch work slowly. so I am happy to buy this product . I am currently used this product . And u can buy this product to sale.