Here is a complete list of 3500mAh Battery Mobiles Above Rs. 20,000 available for sale in India. About, 2 devices with best prices are updated as of 16th January 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. 58,799 for Samsung Galaxy S8 Plus. Samsung Galaxy S8 Plus, LG G Flex and are the latest mobiles in this category.