Hi friends ,
I had use Samsung Power Bank 1 250 I am using it from one year and I had experienced that this power bank is not good one because in first three months it works properly but after 3 to 4 months it stops working properly and makes problem for your device and the holder of charging socket gets disturbed and destructor and it was not fit and after sometime it means after one year it stops working and now when I charge it then it shows full charging but it gives me only 5% in my mobile so it was very disappointing to me due to which I have to purchase new battery power bank if you want to purchase it I will recommend you please do not possess Samsung Power Bank 1250