this is the one i have think it does all those battery types, charges and discharges (you would need to buy some leads with it though)

http://www.technobots.co.uk/acatalog/Online_Catalogue_Universal_Chargers_28.htmlhttp://www.technobots.co.uk/acatalog...argers_28.html

its this the - Pro-Peak Sigma AC/DC Charger to 5A (third one down)

alex