E-SYB S6 6 BAY/SLOT Intelligent Universal Smart Charger for Rechargeable Battery Li-ion NI-MH NI-CD AA AAA 18650 14400 14500 16340 26650 Capable of charging 6 batteries simultaneously 1A and 0.5A option charging current for choice according to different slots Activation function for Li-ion batteries with protection board Anti-reversing protection. Short-circuit protection. Over-current protection. Over-voltage protection. Overtime prevention 6 blue LEDs indicate charging progress for each battery