Aliexpress
Click here… to search for Wolike CN-1500 1598WH 432000mAh Power Station 1500W with 150W 19V Solar Panel [EU] on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I don’t know if this is a good price – number of records in my database is too low!
Link: Banggood product page
Coupon (699.99 USD): BG699cz
Coupon (719.99 USD): BG20iMars
(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): BG599cz
(probably won’t work, but you can try them out)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was 599.99 USD).
You can set price alert (for Banggood).