Mooch compared the top 3 18650's in the 3000mah range, his results came out with the sony vtc6 performing the best, samsung 30q's a close second and lg hg2's in 3rd. All solid 20a/3000mah batteries though. Imr, illumn and liionwholesale all sell legit batteries. Not familiar with the wattage ranges of the fireluke mesh coils or what you vape at. If 100-120w or less then the 3000mah batteries would be a good bet, if vaping higher like 120-130w+ maybe consider going with the sony vtc5a's. A bit less mah but higher amperage for the higher wattage demands.