The Nitecore I2 is an advanced USB management charging system capable of charging 2 Li-ion battery simultaneously.
Compact and Compatible
The New Nitecore Intellicharger i2 is a compact device that can charge batteries that are 30mm to 69.3mm long, including flat top types. Super long batteries like some protected 26650 cells might not fit into the i2 bay.
The Nitecore Intellicharger i2 is compatible with IMR, Li-ion, LiFePO4, Ni-MH, and Ni-Cd batteries. It is capable of charging two batteries simultaneously.
Li-ion/IMR/LiFePO4: 10340, 10350, 10440, 10500, 12340, 12500, 12650, 13450, 13500, 13650, 14350, 14430, 14500, 14650, 16500, 16340 (RCR123), 16650, 17350, 17500, 17650, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22500, 22650, 25500, 26500, 26650 size batteries.
Ni-MH/Ni-Cd: AA, AAA, AAAA, C, D
Insert, Detect, and Charge
The most noticeable difference between the original NiteCore i2 and the upgraded version is the front face. The old yellow power bars have been replaced with a modern LCD screen and charging progress is now displayed in percentage along with green LED lights.
As with the original i2, all you have to do is insert the 18650 battery into the slot and the new i2 will automatically detect and charge.