Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe . Only one coupon available!
Link: Banggood product page
Coupon (367.99 USD): BGAUGUST8
(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): BG6f674e, Cuponation9, 9OFFSUMMER, COUPONSDE1wk, BgGoodie9, BGb24021, BG8ReviTrage, BGcoupon8off, BGGutscheine, BG00c906, BG8OFFCOUPON, TTBLACK5
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for 52V 19.2Ah 40A Hailong Max Bike Battery [EU] is here.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).