When I was updating this page, then coupon price was $28.99 for BIKIGHT 150PSI 4000mAh Air Pump (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Battery capacity 4000mAh, Input USB 5V 2A, Power 80W, Unit display KPA / BAR / PSI / KG/c㎡, Applicable objects Cars / bicycles / balls / swimming laps / etc., Brand BIKIGHT, Function Inflation / lighting / tire pressure monitoring / intelligent digital display / mobile power, Weight 380g, Size 78x50x120mm
Latest price update (UTC time):
Banggood ($28.99)
Banggood warehouse is located in China. I have no active coupons for you right now. Good or bad price? From what I can see this price is higher than average price ($27.49).
Link: Banggood product page
Price: $28.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGDS556, BGJK556, BGMU556, BGMUBB, BGMUA1, BGMUA25, BGMUA28, BGMUA41, BGMUA29, BGHU0495, BGbe2163, BG8c9ffe, BGfa650a, BGd969d7, BG5411bc, BGBICYCLES, BG4d9120, BG89c547, BG52c7e5, BG00c906, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BGBIDA12, BG1efeb0, 8Couponsde, MVC8SPRING, BG69e787, 8BGwbg2204, BG3f29d1, BGc0565d, pROMo8cuPoN, BG37ada1, BGd8c503, BG7f460f, BG902cf2, BG720392, BG52b64e, BG559c06, BG2f573f, Cuponation9, BG974c77, BG8ReviTrage, BGcoupon8off, BGGutscheine, BG8OFFCOUPON, TTBLACK5, BG589b2e, Sports23q1, BGc185d8, BG882649, BGe4d610, BGfc74e2, BG8FORMULAMX, BGTYTHUR11, BGTYBP15, BG6ca0aa
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BIKIGHT 150PSI 4000mAh Air Pump [EU] ($-3)
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
Do you need price history chart (for all/most countries) for BIKIGHT 150PSI 4000mAh Air Pump? There we go.
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)).