Another simple way to stress batteries and monitor them is to use a cheap charger (got one for 2$ from ebay) throw the contents away and use the charger as a base to connect terminals. i use it on my analyzer but you can connect batteries to anything. Easy to switch batteries and have a good contact.
I hope your happy....now the wabbit....having all sorts of visual fun......last time I ever ask you about bats.....

no one bends it better...