Buyer beware. Smoketip is set up to lock you into a consistent and eternal flow of ordering from them. batteries are apparently designed to go bad after 60 days; chargers at 90. They push "lifetime warranty" on batteries but they will only honor that "warranty" if you're buying more product. Otherwise, to RMA a battery is the same price as a new battery which is insane. They figure most people will simply cave and order more product. I personally am dumping them; this is the lowest, most shoddy way of doing business and you cannot trust a company that works like this. Think "used car salesman in a pinstripe suit." That's my experience of Smoketip. I personally was ordering refill cartridges from Magic Mist; their shipping is phenomenally prompt and their prices were better, but I no longer need any new cartridges since I'm now refilling them with my own custom mix and have over a hundred cartridges. Smoketip is not engaging in any false advertising - they are clear on their site about there being no "warranty" unless you keep ordering from them - but the product has a very short life, I'm quite sure that's by design. The best way to escape their having you over a barrel is to never use them in the first place.