What's the relationship, if any, between battery dimensions and battery type (ie, lithium, etc.) in the US? is there one standard family of battery sizes that all battery types are built to? Alkaline batteries come in D, C, B, A, etc. Are their lithium counterparts for each of these sizes? Or do lithium batteries have their own family of sizes? Is there still a third family? What about rechargeables? Do they have their own sizes as well?