Just check coupons out (with price alert and history). Best price?
10440/14500/14650/16340/16650/17650/17670/18350/17490/18500/18650/22650/26500/26650/32650, micro usb cable
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($12.59): AC18
2. ($12.59): ac18
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): ADSQ2S, 6335CK, MADSK2
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – ADEASKA SQ2 Battery Charger EU Plug ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for ADEASKA SQ2 Battery Charger Micro USB.
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)).