The Efest LUC V4 LCD & USB 4 Slots Battery Charger with Car Charger is designed for charging rechargeable batteries. It features four independent charging slots and an LCD screen displaying essential charging information. The charger includes reverse polarity protection, short circuit protection, over-current protection, and zero voltage activation, ensuring safe charging. It monitors battery power and provides alerts for any issues during charging.

Compatible with a wide range of 3.7V Li-ion or LiMn batteries, it supports sizes such as 10440, 14500, 14650, 18500, 17670, 18350, 18650, 20700, 26500, and 26650. It can also charge 15270 or 14250 batteries with spacers. The charger can serve as a power source for devices with a fully charged battery in slot 2, featuring two USB sockets with DC5V/0.5A and DC5V/1A outputs, allowing for simultaneous charging of multiple devices.

Specifications include AC input of 100-240V 50/60Hz, AC output of DC 12V 2A, and DC input of DC 12V 2A. It has a 0.5A CC current of 500mA ±5%, 1A CC current of 1000mA ±5%, and 2A CC current of 2000mA ±5%. The auto cut-off voltage is 4.23V ±0.05V, and the CV cut-off current is less than 10% max current. Standby current is less than 20mA, and TC current for battery voltage less than 2.9V is 10mA~20mA. USB output current is 1A.

Warning: Misusing or mishandling lithium-ion batteries can pose risks. They should not be used outside of a fully protected battery pack. Never exceed the battery’s true continuous current rating and maintain the plastic wrap and top insulating ring in good condition.