The Nitecore D4 is a universal smart charger compatible with almost all cylindrical rechargeable batteries、 thus eliminating the need to own several chargers. The D4 automatically detects Li-ion、 Ni-MH and Ni-Cd batteries、 and through manual selection is also capable of charging LiFePO4 batteries. Intelligent charging circuitry selects the optimal charging mode (CC、 CV and dV/dt) for a given battery and each of the D4?s four microcomputer-controlled charging slots then monitors and charges the battery independently. Furthermore、 an integrated digital LCD screen clearly displays charging progress、 voltage、 current and time while an intelligent automatic power-off function terminates current when charging is complete. The Nitecore D4: The world?s most advanced fully-automatic digital charger. It as simple as insert、 detect and charge. Features- Capable of charging 4 batteries simultaneously- Each of the four battery slots monitors and charges independently- Compatible with and identifies Li-ion (26650、 22650、 18650、 17670、 18490、 17500、 18350、 16340(RCR123)、 14500、 10440)、 Ni-MH and Ni-Cd (AA、 AAA、 AAAA、 C) rechargeable batteries- Optimized charging design for IMR batteries- Integrated LCD panel clearly displays charging parameters and progress- Two conveniently located side buttons allow easy selection of specific battery types and charging parameters- Intelligent circuitry detects the battery type and status before entering automatic charge mode (CC、 CV、 dV/dt)- Automatically detects battery power status and selects the appropriate voltage and charge mode (with the exception of LiFePO4 batteries which require manual selection)- Compatible with LiFePO4 batteries- Compatible with small capacity batteries- Automatically stops charging when complete- Features over-charge prevention to protect batteries- Features temperature monitoring to prevent overheating- Made from durable ABS (fire retardant / flame resistant)- Features reverse polarity protection- Designed for optimal heat dissipation- Certified by RoHS、 CE、 FCC and CEC- Insured worldwide by Ping An Insurance (Group) Company of China、 Ltd. Package Content: 1- 1 * Rechargeable Li-ion Battery Charger 2- 1*Charging Cable(EU/US/UK) suitable your country