Introducing our high-quality 510 Thread 400 mAh CBD/THC Slim Oil Vape Pen Battery with Micro USB charger! Our products are manufactured in our factory with top-notch materials that ensure optimal performance and longevity. This battery is the perfect accessory for your slim oil vape pen, allowing for smooth and consistent hits every time. With a powerful 400 mAh battery, you'll be able to enjoy your vape pen all day without worrying about running out of power. Our battery is easy to use and rechargeable via the included Micro USB charger. Get yours today and experience the ultimate vaping experience!