$18.99 – KUULAA Mini Power Bank 4500mAh (Banggood, Aliexpress: KUULAA KL-YD47 Mini 4500mAh Built-in Type-C Plug Emergency Power Bank External Battery Power Supply Fast Charging for iPhone 12 13 14 14Pro 14 Pro Max – Black+Type-C (the best price with coupon)).
When I was updating this page, then coupon price was $18.99 for KUULAA Mini Power Bank 4500mAh (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Best price?
Latest coupon and price update (UTC):
Banggood ($18.99)
Banggood warehouse is located in China. I have no active coupons for you right now. Good or bad price? This price is higher than average price ($13.20) for this item.
Link: Banggood product page
Price: $18.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG589b2e
(I don’t think these’re gonna work, but you can try ’em out anyway)
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.
Price history and price alert
Do you need price history chart (for all/most countries) for KUULAA Mini Power Bank 4500mAh? There we go. The lowest price was: $11.61.
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)).