$9.99 – 5V LCD Display 18650 Lithium Battery Capacity Tester Power Detector Module 2 Way with Charging Discharge Type-c Port.
You can get 5V LCD Display 18650 Lithium Battery Capacity Tester for $9.99 using coupon code (in Banggood). Get coupons, create price alert or check price history out! What is best price?
Latest coupon and price update (UTC):
Banggood ($9.99)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. Well, is it a good price anyway? The average price for this item is $10.24, so I think it’s a good price!
Link: Banggood product page
Price: $9.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG589b2e, BG5c1899, BGcbd315
(probably won’t work, but you can try them out)
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
Here is price history (for all/most countries) for 5V LCD Display 18650 Lithium Battery Capacity Tester. The lowest price was: $8.99.
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)).