Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (999.99 USD): BYDCN22
Coupon (1097.99 USD): BG01b49c
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGAFF7OFF, BGBOYHY, BGEBSC15, 7bcdf9
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for BOYUEDA C2 26Ah 52V 3200W Electric Scooter? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).