Here is a complete list of 3500mAh Battery Mobiles Above Rs. 20,000 available for sale in India. About, 3 devices with best prices are updated as of 24th March 2018. GizBot helps you identify the best one that suits your style, budget and requirement. Choose from a wide range of 3500mAh Battery Phones Above Rs. 20,000 along with key specifications, unique features and images. The most affordable one in this category is LG G Flex selling at Rs. 21,999 and the highest priced is Rs. 57,899 for Samsung Galaxy S8 Plus. Samsung Galaxy A8 Plus (2018) (64GB - 6GB RAM), Samsung Galaxy S8 Plus and LG G Flex are the latest mobiles in this category.