NiteCore NIT-D2+BBOX Bundle D2 Charger with LCD Display Universal Smart Charger with Bonus Battery Box The Nitecore D2 is a universal smart charger compatible with almost all cylindrical rechargeable batteries, thus eliminating the need to own several chargers. 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 D2 is of 2014 version charger and capable of charging 2 batteries simultaneously. The D2 automatically detects Li-ion, Ni-MH and Ni-Cd batteries, and through manual selection is also capable of charging LiFePO4 batteries. The Nitecore D2: The worlds most advanced fully-automatic digital charger. Its as simple as insert, detect and charge.