Use of power banks has become important in our daily needs. If you want to buy a power bank with good power and features to keep the charge on electronic devices like mobile, smartwatch or band. On the online market place Amazon, you can buy a great power bank by spending very little money. In this season of festivals, Amazon is also offering a lot of offers. Let's know in full detail. Reliance Jio disappoints users, now customers have to pay extra for calling Micromax 10400 mAh Power Bank (Gray) This power bank of Indian company Micromax is 10,400 mAH. Available in gray color, this power bank is available at Amazon for just Rs 559.00. With this deal, you will be able to save at least Rs 1,540. Zing Technologies Z10KI 10000 mAH Lithium Ion Power Bank This very attractive zinc power bank is of 10,000 mAH. This lithium-ion power bank has been rated 3.5 by Amazon users. This product is very economical and is available on Amazon's website for just Rs 499. Winter season is close, these water heaters are available at great discounts Mi 10000mAH Li-Polymer Power Bank 2i with 18W Fast Charging This power bank of Xiaomi is quite low weight. This power bank is capable of fast charging of 18W. Available in Black, Red and Blue colors, this product is available on Amazon for just Rs 899. MRP of this product is Rs. 1,199. You will save at least 300 rupees on this deal. URBN 10000 mAh Li-Polymer Heroes Power Bank with 2.1 Amp Fast Charge and Ultra-Compact Slim Body This power bank of URBN, which supports fast charging, is getting a great deal on Amazon. The MRP of this power bank with a very attractive look is Rs 2,499 but you can buy it at Amazon for just Rs 799. Bad news for Samsung users, these smartphones will not get security updates