I have just checked coupons. The lowest price I could get is 5.69 USD for Digital Battery (in Banggood). Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
Latest price update (UTC time):
Banggood (5.69 USD)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. Is it expensive? Hmmm, price is higher than average (which is 5.16 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 5.69 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGM1TOOLS88, BGTOOS729, BG8be5fd
(these codes were not working in latest coupon update, but you can check them out anyway)
Aliexpress
There’re some similar items on Aliexpress in my database. There may be some other items though.
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
ANENG BT189 Digital Battery Tester | 1.93 USD | – |
 |
ANENG BT189 Digital Battery Tester | 4.07 USD | – |
More on Aliexpress… Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for ANENG BT189 Digital Battery Tester is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).