Introducing the Cartboy Pro: The Ultimate Discreet 510 Thread Battery Looking for a sleek and powerful 510 thread battery that fits your lifestyle? Get ready to meet your new partner in crime – the Cartboy Pro by STRIO. Designed with discretion in mind, this compact and stylish battery is packed with features to enhance your vaping experience. This badass 510 thread battery is all about discretion, power, and customization. Let's dive in and explore what makes the Cartboy Pro discreet vape battery the perfect companion for your vaping needs:Compact Design for Discretion: The Cartboy Pro is expertly crafted to be discreet and portable, allowing you to enjoy your vaping sessions without drawing unwanted attention. Slip it into your pocket or purse, and you're ready to embark on a covert vaping adventure wherever you go.Versatile Compatibility: With its innovative design, the Cartboy Pro is compatible with most 510 thread cartridges on the market. It can handle cartridges up to a whopping 3g (within 14mm diameter)! So go ahead, load it up with your favorite oils, and prepare for an epic vape session.Powerful Battery Capacity: With a robust 650mAh battery capacity, the Cartboy Pro guarantees long-lasting vaping bliss. Say goodbye to constant recharging and hello to extended vaping pleasure. It's time to unleash the power!USB Type-C Charging: We know you're always on the move, and waiting around for your battery to charge is a buzzkill. That's why we equipped the Cartboy Pro with a USB Type-C charging port. It's time to say goodbye to sluggish charging speeds and hello to the fast lane of vaping.Variable Voltage for Customized Experience: Customize your vaping experience with the Cartboy Pro's twist dial. Want a mellow hit? Crank it down to 2.8 volts. Need an extra kick? Take it all the way up to 4.0 volts! With four voltage options (2.8v, 3.2v, 3.6v, 4.0v), you're the master of your vape destiny.Power Level Indicator: No need to guess your battery's life anymore! The Cartboy Pro comes with a power level indicator that's both practical and stylish. A green light means you're soaring with over 75% power. Blue light? You're cruising between 35% and 75% power. And when you see that red light, it's time to recharge and get back in the game.Superior Build Quality: Crafted with precision and durability in mind, the Cartboy Pro boasts a high-quality construction that guarantees long-term reliability. It's designed to withstand everyday use and is built to last, ensuring a consistently satisfying vaping experience.The Cartboy Pro by STRIO is not just a battery; it's a statement. It's the sidekick you've been waiting for, always ready to deliver intense flavors, powerful hits, and stealthy sessions. So why wait? Grab your Cartboy Pro and conquer the vaping world in style! InstructionsFits most 510 thread cartridges up to 3g (within 14mm diameter)Puff rapidly 5x to power on/off, there is no auto turn-off functionPuff twice within 1.5 seconds to preheat (always preheat!)Blinking white light means the cart is not seated properly, please reconnect or try another cartFor best connection and airflow, screw in cart fully then unscrew a quarter turn Cartridges not included* ***Please ensure your carts are 14mm diameter or less  Please note these usage instructions for your new device: 1. Do not charge any vape batteries with a cart attached. Electronics can heat up while they're charging and it could cause the cart itself to leak into the device. 2. Always preheat any vape battery before use. Whether this be with a new cart or used, this makes the concentrate more viscous and easier to vaporize by the device.  3. Make sure to not exceed 90 minutes on a charger. The batteries themselves are small and don't take much time to fully charge.