Output Fast charging (5V = 2.4A; 9V = 2A); 5V = 2.1A / 12V Car Start, Capacity 10000mAh (37Wh), Size 173* 83* 25(mm), Starting current 250A, Model X6, Weight 435g, Peak current 600A, Input Type-C (5V=2A).
Check coupons or create price alert down below. What is the 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 coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
1. ($90.22): BANGGOODSD
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 and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGNew20, alibuy2h, XM15TF, alibuyX6, ineedit5599, Pumps, 30Can, BGMiPower, Brand2, BGalibuyX6, BGStarter2, BG2CAR2, BGALIBUYX612V, BGINEEDIT12V, BG99X6, TS15prime, TISPrime01, Tools1, BGCARKU11, BGCJS2, BGoo1, BG2020NS, BG11BB, BG7723, bGhOnEy10, BgcLuBofErtA10, BGeLt15, BGAFF10OFF, BGCuponation10, 13f142, BGHONEY2110
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi CARKU X6 12V 10000mAh Emergency Jump Starter. The lowest price was: $46.9.
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)).