According to my DB the lowest price is 18.99 USD for Display 18650 Lithium Battery (in Banggood). Price history, coupons and price alert are available on this page. Let’s see what best price is ATM.
Latest coupon code price check (UTC time):
Banggood (18.99 USD)
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood. Low/high price? Hmmm, price is higher than average (which is 16.99 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 18.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG589b2e
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Aliexpress
Click here… to search for LCD Display 18650 Lithium Battery Digital Measurement Module on Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for LCD Display 18650 Lithium Battery Digital Measurement Module? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).