Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
Oh, and they vary between $84.99 and $89.99/ea, depending on the day you look online (they are always $89.99 in store). Cheaper to buy online when the price has dropped, and just pick them up in store.
I pretty much use these exclusively on sets I go through now, that don't come with batteries: https://www.tractorsupply.com/tsc/product/exide-classic-auto-truck-suv-battery-51rc
My local TSC never asks for a core, so its been all good in my books.