If you need nothing else but batteries, CL is your best bet. Rare to find battery only deals outside of Nov-Dec. Though the HD promo where you get 20/50/100 off 1/2/3 items does have a XC 2 pack and 5.0 starter kit in the promo. But there were many people that got incredible deals on that stuff Monday, so they are probably on CL cheaper than you can get today. Sometimes you can get good prices on new stuff on Ebay & Amazon also.
Anyone find any good deals on m18 batteries?