What's a THC vape pen, and how is it operational? in case you think on vaping more often than not, and then it would beneficial if you choose a vape pen that has an excellent battery capacity and lasts for much longer periods without the need to recharge frequently. An additional point to consider is the battery life of the service. The strongest pre-filled vape pens are those with much higher concentrations of THC. Pre-filled cartridges are...