Never run out of charge. Starting Rs. 499.
Amazon: Power Bank Days
Good Buys:
• iBall 10000mAh Powerbank LPS10000 Rs. 499
• Zinq Technologies 20000mAh Power Bank Z20KP Rs. 899
• Ambrane 27000mAh Powerbank PP-30Pro Rs. 1999
• Redmi 10000mAh Power Bank Rs. 799
• Redmi 20000mAh Power Bank Rs. 1599
• Mi Wireless Power Bank Rs. 2499