$22.99 – KONNWEI KW218 6V-12V Car Battery Analyzer (Banggood, Aliexpress: KONNWEI KW218 6V-12V Car Battery Analyzer Diagnostic Tool Professional Car Battery Tester (the best price with coupon)).
When I was updating this page the price was $22.99 for KONNWEI KW218 6V-12V Car Battery Analyzer (in Banggood). Price history, coupons and price alert are available on this page. What is the best price?
Latest price update (UTC time):
Banggood ($22.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Is it expensive? From what I can see this price is higher than average price ($20.99).
Link: Banggood product page
Price: $22.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
Old coupons (from the oldest to the newest): BG2fb66a, BGAMMT03
(these coupons are old, so probably won’t work)
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 KONNWEI KW218 6V-12V Car Battery Analyzer. The lowest price was: $19.99.
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)).