Just check coupons out (with price alert and history). What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
XT30 Male Female Bullet Connector Mini XT60 Bullet Plug Connector battery ESC Connecto Racing RC Accessory 2Pair/4PCS FHA088 | $5.74 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
specially designed for your TS100 smart electric soldering iron
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($8.49): BGTool15
2. ($8.49): BGherra
3. ($8.79): TOOLS15
paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): chollodronesBG020, 502C6B, e2bcea, elec, BG15sh, BGVDay10%off, BG15PTools, bGhOnEy10
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for MINI XT60 Male Bullet Connector.
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)).