Four independent charging channels for individual battery charging and detection. You won't have to charge the batteries in pairs only.
Eight hours charging time cut-off to ensure safety. By cutting off the charging after 8 hours, this will lead to better battery life and safer charging.
Constant charging current mode; trickle current when fully charged.
Will charge both AA and AAA batteries. Just flip down the notch to open contacts for AAA. Can take both chemistries: NiMH, NiCd.