18650 Batteries

Hi Cube, I have a brand new set of 4 Panasonic 18650b 3400mAh 3.7v Li Ion rechargeable batteries I bought off of Amazon. They are FLAT TOP not button top and do not work in my device. I think some laptops or cameras use the flat top version.. I bought them for $27.25 but will take first offer on them. Definitely willing for barter or trade! - Martin B