Nitecore D4 Digicharge universal home/in-car battery charger, Four Olight 18650 3400mAH rechargeable batteries with 2 X EdisonBright AA to D type battery spacer/converters

Nitecore D4 battery charger 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's as simple as insert, detect and charge. Features: • 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 • Features over-charge prevention to protect batteries • Made from durable ABS (fire retardant / flame resistant) • Features reverse polarity protection • Certified by RoHS, CE, FCC and CEC Olight 18650 3400mAH Li-ion rechargeable battery Features: 500 Charge/discharge cycles Triple over-heat protection Over-discharge protection High capacity at low temperature (-10deg;C) Higher capacity and lower weight than other rechargeable batteries Higher energy density This bundle includes Four Olight 18650 3400mAH rechargeable batteries with 2 X EdisonBright AA to D type battery spacer/converters