There are many power banks available in the market. Out of that some of the affordable and good ones are as follows. They are available in Amazon or Flipkart or any major online portal.
1. Philips DLP1710CB, Fast Charging Power Bank, 10000mAh, Lithium Polymer Battery. Price range Rs 900-1000.
2. AKAI Power Buddy PB- 33, Capacity 10000mAh, Mini Portable Charger Power Bank, Smart Digital LED Display, Fast Charge, 1 yr Warranty. Price range Rs 800-900.
3. Gionee PB10K2S, 10000mAh, Li-Polymer, Digital Display Power Bank, 2 Output Ports, Fast Charging 12W. Price range Rs 600-700.
4. Mi Power Bank 3i, 10000mAh, Dual Output and Input Port, 18W Fast Charging. Price range Rs 800-900.
5. OnePlus, 10000 mAh Power Bank, Fast PD Charging, Lithium Polymer. Price Rs 1000-1100.
Knowledge is power.