This smart LCD battery charger can simultaneously charge 1 to 2 AA AAA nickel-hydrogen-nickel-cadmium batteries The charging current of each station is up to 500mA, and it only takes 4 hours to fully charge 4 AA 2000mAh batteries There are dual connection options, micro USB ports, you don't have to consider, you just have to choose the connection that works best for you Advanced microcontroller control and function, overheat, overcurrent protection, short circuit protection, battery no charge and defect detection Date First Available April 18, 2022