I am monitoring price for Awithz H1 Handheld Spot Welder 4.2V and it is for $19.99 now (in Banggood). Check coupons or create price alert down below. Let’s see what best price is ATM.
Awithz H1 Handheld Spot Welder 4.2V Portable Micro Battery Welding Machine 11 Adjustable Gears 1800mAh Capacity Easy Use for DIY Electronics Battery Restoration Mini Safe and Versatile
Latest coupon and price update (UTC):
Banggood ($19.99)
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment. But wait a sec… Is it a good price? According to my database, the average price is $20.49 and current price is $19.99, so it’s probably a good price!
Link: Banggood product page
Price: $19.99
Old coupons (from the oldest to the newest): BGde5566, BGe245a9, BG45ad37
(you can check these old coupons out, but these probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
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 Awithz H1 Handheld Spot Welder 4.2V.
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)).