Mi 10000mAH Li-Polymer Power Bank 2i 

                     Price ₹ 899

• 10000mAH lithium-polymer battery
• Dual USB Output, Two- way Quick Charge
• Compatible with 5V/2A, 9V/ 2A and 12V/1.5A charging, Mi Power Bank 2 intelligently adjusts power output up to 18W to deliver fast and efficient charging for each connected device
• Material: Aluminium Alloy + CNC Edge
• Lithium Polymer Battery makes it more durable and optimises charging efficiency
• Mi A1: 2.2 Full Charge and iPhone 7 : 3.5 Full Charge

People Review : 

1) The power bank worked well for less than 3 months. Then it stopped charging altogether. I called the customer care number and was told that since it is in warranty it will be replaced post checking at the service center. Service center first said. It's charging. I told them to keep it on charge for a bit and see, it would not go beyond one light out of 4. They realized I was right and then proceeded to tell me that since there is a small dent in the corner on the body of the power bank they cannot replace it! Really? How come the dent didn't matter before they realised it was charging? On asking for their opinion on the situation in writing, they refused. Really bad service from Mi. Am never buying another Mi product again. They are cheats of the first order.

2) I am using it since 6 months and trust me the power holding capacity of this particular power bank won't ever disappoint you! Since its of 10k mAh its quite heavy as its from Xiaomi. It takes enough time to charge itself but trust me once its fully charged it will not going to get discharge on standby as most of the power bank does, here's a buying tip for you if the sales are about to come than wait for it and purchase it on sale.

3) Its been a bad experience with thisproduct
It takes over 12 hours to fully charge and i can only charge my iphone 6s only twice which is extremely bad for me
Its my first powerbank and i hate it
I think its a defected peice

4) Procs -

1. Good material
2. Good backup / battery life
3. Excellent built quality
4. Light weight
5. Extra slim as mobile
6. Better charging speed at two mobile at a time
7. Durable due to aluminum body
8. Value for money 699/- ( 630/-)

Cons -
1. Worst re-charging speed it takes around 8-10 hours
2. No Type-C option or variant
3. No Type-C connector including in box
4. No LED Torch option

5)It looks awesome, slim aluminum body with matte colour gives it beautiful finishing. Performance wise it's not a 10000 mAh power bank, as I've tested, so it should be 6000 - 7000 mAh power bank. One more important thing, it haven't any fast charging feature, it takes more time than regular charger ie. it takes more than 04:00 hrs to charge 3000mAh battery; which normally takes 2 0r 2 and half hrs for 0 to 100% charging.