Except for the odd sticky button, I love iJust 2 batteries. For my use, they are the perfect height, width, button location, power and simplicity. Sadly, I'm running out of spares and I don't think there are many new ones to be found. Can you suggest an alternative with similar characteristics? The iJust S seems a logical choice and I'll probably order some. But I'd rather stay with a 22 mm diameter.