Thanks for the input- no wonder why I can't find protected cr2 bats- they dont exist. I have a Silver Bullet and they take rcr123a- so I have plenty of them. Altsmoke has a new mod coming out and they'll need cr2s. I acutally bought the 6 Tenergy LiFePO4 bat and charger kit- but I don't think they'll work with the new mod. It will take 14500 and 2 cr2 for 6v.
Renaissance- thanks for the other cr2 bat number- i'll do some searches on it. I would rather stay away from DX- because of how long they take- but they do have great deals. I'll have to check DinoDirect. Have you guys heard/ or used them? I bought some UltraFire 18650 3000mAh bats and the had slightly better deal than DX and it only took them 16 days. I'll have to check DinoDirect- on a side note DinoDirect does Bing cash back and they almost always have some sort of coupon code.