Powerful 700W motor, 5.2Ah Li-ion battery, max 25km/h speed, Max Payload: 100kg, Maximum Mileage: 25km.
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): PICODICOM, 3fdb24, 7bedc2, e3b6b5, ZSFES2, 28cabb, bgpicob, BGES21, BGES2, BGZ124S, BGitninebotES2, BGES271, bg7pes2, BGletnies2, issames2cn, picodicom, BGNBES2CN, BGNBES2CN19, 5d1752, BGNBES2CN11, BGNBES2CNB5, BGNBES2CNXM, bGpAnDacHeCk, 7bcdf9, BGNBES2ES, BGNTBES269, BGAFF7OFF, BG7PNBES2CZ, BGRNBES25, BGBSNBES2CZ, BGNBES2CZ, BGES2D1, BGES2B5, BGEBSC15, BGES2ZISSA, BGES2Z21, BGES2ZISSA1, BGODJNE, 00c906
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Ninebot ES2 Electric Scooter Gray [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Ninebot ES2 Electric Scooter Gray. The lowest price was: $324.99.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).