The Queen Ant II MC6II Smart Li-ion Battery Charger is an updated version of the Queen Ant Charger. Now rather than a dual USB input there is a power supply which provides 5V 3A and a constant charge of 0.5A x 6. This is a simple charger to use with a minimal user interface, once the batteries are in place a LED light will show red for charging and green for charged.
The charger will precisely cut off at 4.2V when the battery level is fully charged, the Queen Ant II contains buffering technology keeping batteries safe from violent currents, there is also reverse-polarity, short circuit, overcharge and overheat protection.
Li-ion / IMR / INR / ICR 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18500, 18650, 18700, 20700 and 21700.