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