I have some good Samsung 20S rated by Mooch as true 30 amp 2000mah. I wanted longer battery life si I bought Lg hg2s 20 amp 3000mah. I barely see a difference in battery life just the Lgs take longer to charge. Am I just better off using the 30 amp batteries and putting less strain on them? They charge a lot faster. Im not changing the way I vape. Im not cutting my wattage down or changing my build. I just want to know which batteries I shud use.