TangsPower T4 4-Slot Intellicharge universal smart battery Charger Multifunction Li-ion / NiCd / Ni-MH Battery Charger 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, IMR and Ni-Cd (AA, AAA, AAAA, C) rechargeable batteries Features three charging modes (CC, CV and Trickle Charge); Optimized charging design for IMR batteries Automatically detects battery status and selects the appropriate voltage and charge mode; Made from durable ABS (fire retardant / flame resistant) 3 Color LED displays charging progress for each battery; Automatically stops charging when complete; Features over-charge prevention to protect batteries; Features temperature monitoring to prevent overheating; Features reverse polarity protection