Pdavey (guessing sir?) no they're not. There are gen 1 versions and gen 2, gen 1 (like v4l makes) are the old school non regulated versions. These vary in quality vendor to vendor. V4l does make an updated version of this in their king diamond and stealth series, it's a new cell technology that holds it's voltage longer than any other I've tested. Gen 2 are the regulated version which bloog, volt, halo g6, etc are based off of. They are regulated to 3.6v on load and last longer than gen 1, but with a trade off of lower voltage. If using old school cartos, then a gen 1 is your best bet. If you want the newer horizontal coil cartos, gen 2 is. Horizontals burn juice very easily after 3.6v due to the heating area being so compact... Hope this helps...