Basen offer premium quality high drain 3400mah batteries. Alot of vapers including myself have been using the green Panasonic but due to counterfeit products being prevalent its very hard to know if you are getting the genuine deal. Basen offer a cool Black with yellow 18650 3400 mah option perfect for long vaping.
We've tried many brands and finally settled on Basen for our customers. You wont be disappointing.