whether you're looking for an auto-draw weed pen or a variable voltage battery, you're covered. we’ve got 510 batteries for the curious, the casual, and the connoisseurs alike.
Our Best-Selling Vape Pens
510 batteries and weed pens designed for ease-of-use and lifelong durability
We’ve been making vape pens since 2012 and haven't stopped since
O.pen makes it easy to enjoy vaping your way with premium vape pens and 510-thread vape pen batteries.
Why Choose an O.pen Vape Pen?
🔋 Reliable Vape Pen Batteries
All O.pen batteries are 510-thread compatible, easy to use, and built to last.
🎛️ Variable Voltage Control
Find your perfect puff with adjustable heat settings for any oil type.
🛠️ Auto-Draw & Button-Activated Options
Choose the weed pen experience that fits your lifestyle.
✅ Backed by a Lifetime Warranty
Confidence and coverage come standard with every O.pen device.
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Shop Our Best Vape Pen Batteries
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Vape Pen FAQs
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A vape pen is a compact, battery-powered device used to vaporize cannabis oil or distillate. Most modern vape pens include a rechargeable battery (often 510-thread) and a compatible cartridge filled with THC or CBD oil. When activated—either by inhaling or pressing a button—the vape pen heats the oil and produces smooth, flavorful vapor.
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Yes—“vape pen” and “weed pen” are often used interchangeably to describe a device that vaporizes cannabis oil. Both typically use 510-thread vape pen batteries and are compatible with THC or CBD cartridges. Some weed pens are disposable, while others (like O.pen’s rechargeable batteries) offer more control and reusability.
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There are two main types of vape pen batteries: auto-draw (activated by inhaling) and button-activated (you press to control heat and vapor). O.pen offers both options, including variable voltage batteries that allow you to adjust the temperature for different cartridge types. All of our vape pen batteries are 510-thread compatible and designed for smooth, reliable performance.
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We use FedEx for shipments and unfortunately cannot ship to PO Boxes. Free shipping is offered over $50 and otherwise is $5.99 flat rate.
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Yes! Our vape pen batteries are compatible with any 510-thread cartridge, which is the industry standard for THC and CBD oil vapes. Whether you’re using distillate, live resin, or rosin, O.pen batteries are built to deliver flavor, potency, and consistency.
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With proper care, your O.pen vape pen battery can last for years. Each battery includes rapid USB charging and a lifetime warranty for peace of mind. For best results, store your pen upright, avoid overcharging, and clean the threading occasionally to ensure strong connections.
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The best vape pen for THC oil cartridges is one that’s 510-thread compatible, easy to use, and offers adjustable voltage. O.pen’s 2.0 Variable Voltage Battery is a top choice—it features four voltage levels, a preheat function, and auto-draw activation for the perfect hit every time.
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Vape pens are legal in many states where cannabis is permitted for medical or recreational use. Always check your local laws before purchasing or using a weed pen or vape pen battery. O.pen products are intended for legal use only.
