Input voltage: DC 12V/3.0A, Output voltage: DC 4.2V / DC 1.48V.
Just check coupons out (with price alert and history). Let’s see what best price is ATM.
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.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
.
Link: Banggood product page
1. ($30.59): BGAFF10OFF
2. ($30.59): BGTT10
3. ($30.59): bGhOnEy10
4. ($30.59): BgcLuBofErtA10
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): BGG5LS, linepayflt, EYBG, BGBSKL, eybg, AC19, BG13TH, BGF1111, FG5LS, BG500KI, fInbG2020, BGff2020, BGdragonBoat, BGSM30%, BGSS10%SW, BGTBD, BG1128, BGYW27, BGYW59, BG10OFFAFF1, BANGGOODSD, BGTorch4, 00c906, BGtorch2, BGtorch3, BGAlerabat15, BGtorch7, BGAlerabatI
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – LiitoKala lii-500S Battery Charger ($-3)
Price history and price alert
Here is price history (for all/most countries) for LiitoKala lii-500S Battery Charger [EU]. The lowest price was: $26.99.
Price records source(s): Banggood
Click on image to enlarge. ![Price history for LiitoKala lii-500S Battery Charger [EU]](https://couponsfromchina.com/pricehistory/History20610.png "LiitoKala lii-500S Battery Charger [EU] price history")
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)).