LiitoKala Lii-S1 Intelligent LCD Display USB Battery Charger for 18650 26650 14500 21700 Battery
It’s now in flash sale until 20th March for only $6.99 ($12.29)
Successor of most popular compact Lii-100.
Apparently someone from Liitokala reads BLF and saw all those lii-100 voltmeter mods
They even added current readout!