I know and I'm sure somebody'll reply "never buy batteries with fire in the name"but I think I've found an exception.I bought a non regulated American Muscle mod by GearSpec,It is a beast and it came w/2 BestFire 2500 mAh,35 amp,3.7v 18650s.As they state on their site these are quality cells that they include in all the mods they sell.Since they were included in the price I gave them a shot,I don't know If they're rewraps of a major co. but I do know the performance is on par with the Lg4s I favor,so far.I've been using them over a month and bought a couple more to switch out in the dual series mod.I don't know what any one else thinks of them but the performance for the price I'm getting has sold me till proved otherwise.I'll still go for my Lgs first but won't hesitate to use the BestFires'.