$8.45 – ANENG BT-171 Battery Tester 12V LCD Digital Auto Battery Analyzer Charging Cranking System Tester Car Battery Checker Diagnostic Tool.
You can get ANENG BT-171 Battery Tester 12V for $8.45 using coupon code (in Banggood). Basically copy coupon, view price history or create e-mail price alert. What is the best price?
Latest coupon code price check (UTC time):
Banggood ($8.45)
Banggood warehouse is located in China. Too bad there’s no coupon right now in Banggood. Low/high price? Hmmm, price is higher than average (which is $7.74 right now), so better set price alert down below…
Link: Banggood product page
Price: $8.45
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGM1TOOLS88
(system checks these coupons on every price check (like once per 24 hours), but you can check them 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
Here is price history (for all/most countries) for ANENG BT-171 Battery Tester 12V. The lowest price was: $5.99.
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)).