LUC V2 by Efest

The Efest LUC V2 has two built-in independent charging channels with reverse polarity protection, short circuit protection, over-current protection and a Zero voltage activation function. It automatically monitors battery power and has an alarming notice.

With one full charged battery in channel 2, this charger  can charge devices from the USB socket with DC5V/0.5A and DC5V/1A.

Specs:
Input voltage: DC 12-24V. 
Output voltage: 4.1 ±1% 
0.5A CC current: >500mA ± 5% 
1A CC current: 1000mA ± 5% 
2A CC current: 2000mA ± 5% 
Auto cut-off voltage: 4.23V ± 0.05V 
1000mAh CC current: > 950mA 
Cut-off Voltage: 4.3V ± 0.05V 
Auto Recharge Voltage: 3.9 ± 0.15V 
Compatible batteries: 10340, 10440, 14430, 14500, 16340, 16650, 18350, 18500, 18650, 20700, 21700, 26650, and many more. 
Package Contents: LCD multi-fuction charger, DC adapter, Car Charger, Manual