The other battery I put on the charger, a Panasonic, has charged to about 444 mAh. The reason I'm posting this is so I don't forget, I'm going to unplug the charger to swap the charged batteries for other ones to charge. I know you should be able to swap them while it's plugged in and running, but that feels weird to me.
@ashly should be totally fine on a charger with enough smarts to measure charging current. I remember there being chargers where you determined between nicd and nimh by plugging in the charger or inserting the batteries first
@noiob They're helpful I guess. The main thing is it charges batteries individually and not in pairs, and seems to do so well.