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Efest LUC V4 is high quality with 4 charging channel and big LCD screen.
four built-in independent charging channels with reverse polarity protection
short circuit protection
over-current protection and Zero voltage activation function
It can automatically monitor battery power and give an alarming notice.
LUC V4 charger is compatible with most 3.7V Li-ion or LiMn batteries like 10440, 14500, 14650, 18500, 17670, 18650, 18700, 26500, 26650 etc.It can charge 15270 or 14250 batteries with spacers.
Charging input: Pressing the rectangle button can change the charging modes(0.5A/1A/2A) and charge different size 3.6V/3.7V Li-ion batteries.
0.5A/1A can charge 4pcs : 10440/14500/14650/16340/16650/17650/17670/17350/18490/18500/18650/22650 // 2A can charge 2pcs : 25500 and 26650 batteries
With one full charged battery in channel 2, LUC V4 charger also can charge those devices, such as mobile phone, iPad, MP3, Mp4, PSP etc. There are 2 USB sockets of DC5V/0.5A and DC5V/1A. (Yes this is a battery bank)