Nitecore's 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. Nitecore's D4 is one of the world’s most advanced fully-automatic digital chargers. It’s as simple as insert, detect and charge. For a look at how useful it is, see our D4 review.

Features

• Manufacturer's page: Nitecore D4
• 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 [RCR123A], 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.

Specifications

• Input: AC 100-240V 50/60Hz 0.35A (MAX), DC 12V 1A
• Output voltage: 4.2V ±1%/3.7V ±1%/1.48V ±1%
• Output current: 375mA x4/750mA x2
• Dimensions: 143mm x 99mm x 36mm
• Weight: 239g (without batteries and power cord)