Details Features & Tips Battery Charger - Upgraded Compatible - All Brand AA and AAA nimh nicd rechargeable batteries (DO NOT charge alkaline or Lithium batteries) Individual 8-Bay battery Charger - Freely charge 1-8 pcs aa or aaa rechargeable batteries at one time. Independent LED indicators - Red Light on (charging); Green Light(fully charged); Red Flashing (bad or non-rechargeable batteries) Gentle smart LED indicator shows the charging statues, more comfortable light on night. Auto shut off when charging complete, protect the batteries from over-charge. Refresh your low voltage batteries and detect bad batteries when charging. AC 100-240V input, global usage, come with a AC plug cable, charging faster and less power loss than USB cable charging. Reasonable Circuit Layout - Worldwide Usage Advanced MCU Control With Reasonable Circuit Layout Negative delta V (- V) cut-off function, automatically cut off when fully charged Input and Output - Input - AC 100-240V AC 50/60Hz Output - DC