Here's your charger.

Basic and will last 20 years.........and will do everything you need.

http://www.sears.com/shc/s/p_10153_12605_02871222000P?keyword=Battery+charger


The Black and Decker might be an alternative, but I'd never buy anything from B & D............guaranteed to last NMT three years.

The other two are just bells and whistles...........forget 'em.