When I was updating this page the price was $294.89 for ISDT SP3060 20V-30V 1800W 60A RC Power Supply (in Banggood). Just check coupons out (with price alert and history). What is the best price?
Max Output Power: , Output Plug: XT90 Plug, 720W(100-150V AC Input), Model: SP3060, Output: DC 20-30V/60A, Input: 100V-240V /50-60Hz/12A, 1800W(150-240V AC Input)
Latest coupon and price update (UTC):
Banggood ($294.89)
Banggood warehouse is located in China. What about the price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $233.93) Well, there is one coupon available right now.
Link: Banggood product page
Price without coupon: $320.53
1. ($294.89): BGALL8
this code has to be applied in your cart 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): ISDTSP3060, AFfbG10, 502C6B, BGBFAFF2019, BGCITYADS2019, BG10BC, BGMPB2020, BGAFF10OFF, bGhOnEy10, BGBC1, BGdragonBoat, BGRCBC7, BGRC902, BgoFErTaSchInA10, BgcLuBofErtA10, 7bcdf9, BGCuponation10, BGHONEY2110, Parts8, BGRCBC11, BGGAL8, BGRCParts8, BGSFBC1, Tabby20, BG1efeb0, 8Couponsde, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, hoNEYbGdeAlS
(probably won’t work, but you can try them out)
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
Check out price history chart (for all/most countries) for ISDT SP3060 20V-30V 1800W 60A RC Power Supply.
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)).