$30.16 – Weight 350g, Operating temperature 0-65℃, Charging interface Built-in power AC power cord: 110-240V 50/60Hz 0.4A (Maz), Charging cut-off current <150mAh, Recharging current 500mA×4;800mA×4;1500mA×2, (Lengthx Widthx Thickness), (1 channel and 4 channel Li-ion), Charger size 165x 105x 38mm / 64.96x 41.34x 14.96inch, External power supply: DC12V 2A, Charging cut-off voltage 4.20±0.05V/4.35±0.05V/3.65V±0.05V/1.48V±0.05V.
You can get Astrolux AC04 Battery Charger for $30.16 with coupon (from Banggood). Get coupons, create price alert or check price history out! Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood ($30.16)
Banggood warehouse is located in China. Good or bad price? This price is higher than average price ($18.82) for this item. Well, there is one coupon available right now.
Link: Banggood product page
Price without coupon: $31.75
1. ($30.16): BGTORCH10
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): maac4, BGAAC4, BGASTROLUX, BG1128, BGAST25, BGAFF10OFF, BG10OFFAFF1, BANGGOODSD, BGTorch4, BGASTB, BGdeals319, BG343c99, BGXMAS58, BG105bb9, BGtorch7, BGtorch2, BGAlerabatI, BGASTC, BGLED07, BG8FORMULAMX, BGcharles03, BGd57765
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Astrolux AC04 Battery Charger is here. The lowest price was: $15.69.
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)).