Input: DC 12V/5A Voltage: DC 4.2V+/-1%, DC 1.48V+/-1% Charge Current: 0.25A/0.5A/1A/1.5A/2A/2.5A/3A Discharge Current: 0.25A/0.5A/1A (1A for the 1st & 4th slot) USB Output: DC 5V/1A Applicable battery: Li-ion: 10340(RCR123)/10440/14500/16340/16650/17500/17650/17670/18350/18490/18500/18650/20700/21700/22650/26500/26650/20650/22500/25500 Ni-MH/Ni-Cd: AAAA/AAA/SC/C/D