Model number: BPB01., 12V/1.5A., 37Wh., 12V/1.5A., 9V/2A, Input: Type-C 5V/2.4A, 9V/2A, 9V/2A, 9V/2A, Lithium ion battery capacity: 10000mAh, Multiport output: 5V/3A MAX., 12V/1.5A., 12V/1.5A., Output: Type-C 5V/3A, USB-A1 5V/3A, USB-A2 5V/3A.
Basically copy coupon, view price history or create e-mail price alert. Best price?
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 price update (UTC time):
Banggood
Banggood warehouse is located in China. I have no active coupons for you right now.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGbls1w, BGBFAFF2019, BGCITYADS2019, BGmiqibl1w, 2020CNY, BGVDay10%off, FBCOUPON1, bGhOnEy10, BGdragonBoat, BGSS10%SW, BGAFF10OFF, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10, BG15POWERBANK, BGCuponation10, 13f142, BGHONEY2110
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Black Shark Xiaomi 10000mAh 18W Power Bank [EU] ($-3)
Price history and price alert
Price history (for all/most countries) for Black Shark Xiaomi 10000mAh 18W Power Bank is here. The lowest price was: $24.99.
Price records source(s): 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)).