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
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DEAL OF THE WEEK 2.0 VAPE PEN
25% off Glow 2.0 batteries
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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.
TYPES OF VAPE PENS
What Type of Vape Pen Is Right for You?
Not all vape pens are created equal—and that's a good thing. Whether you're vaping cannabis oil, exploring concentrates, or just curious about your options, understanding the different types helps you find your perfect match. Let's break it down.
510-Thread Vape Pen Batteries (Our Specialty)
This is where O.pen shines. A 510-thread battery is the universal standard for vaping cannabis oil cartridges—think of it like the USB of weed pens. The "510" refers to the threading that connects your battery to virtually any prefilled THC or CBD cartridge from a licensed dispensary. These rechargeable batteries come in styles ranging from ultra-discreet (like our Conceal 3.0) to feature-packed powerhouses (hello, Variable Voltage 2.0). If you're vaping oil carts, a quality 510 battery is your best friend. And with O.pen's lifetime warranty, it's a friendship that lasts.
Dry Herb Vaporizers
Prefer flower over oil? Dry herb vaporizers heat ground cannabis without combustion, delivering smooth vapor instead of smoke. These devices typically feature temperature controls and larger chambers designed specifically for flower. While we specialize in 510 batteries for oil cartridges, dry herb vapes are a popular choice for folks who want the ritual of flower with less harshness on the lungs.
Dab Pens & Wax Vaporizers
For concentrate connoisseurs, dab pens (also called wax pens) are built to handle thicker consistencies like wax, shatter, or live resin. These devices use coil or ceramic atomizers that can withstand higher temperatures needed for concentrates. Some advanced 510 batteries—like the O.pen 2.0 with its dab mode—can actually handle both oil cartridges and certain concentrate attachments, giving you versatility in one device.
Disposable Vape Pens
The grab-and-go option. Disposable vape pens come pre-filled with oil and a built-in battery—no charging, no cartridge swapping, just vape until it's done and toss it (responsibly, please). While convenient for travel or trying new strains, they're not exactly eco-friendly or cost-effective long-term. A rechargeable 510 battery lets you swap cartridges and keeps working for years, making it the smarter choice for regular vapers.
Why We Focus on 510-Thread Batteries
Here's the deal: we could try to be everything to everyone, but we'd rather be the absolute best at one thing. 510-thread batteries power the vast majority of cannabis oil cartridges, and they offer the perfect combo of simplicity, versatility, and control. From first-timers to seasoned enthusiasts, our lineup covers every need—discreet pens for on-the-go, variable voltage for customization, and dual-cartridge options for switching between strains. We've spent over a decade perfecting these devices, and it shows.
Ready to find your perfect 510 battery? Check out our full collection below, or keep scrolling to learn how these game-changing devices actually work.
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HOW VAPE PENS WORK
How Do Vape Pens Actually Work?
No judgment if you've wondered what's happening inside your vape pen when you take a puff. Let's pull back the curtain on the magic (spoiler: it's actually pretty simple).
The Core Components
Every vape pen has three essential parts working together: a battery, an atomizer (the heating element), and a cartridge or chamber. When you activate your pen—either by pressing a button or simply inhaling—the battery sends power to the atomizer, which heats up and vaporizes the cannabis oil. The vapor travels through the mouthpiece and straight to you. No combustion, no smoke, just smooth vapor.
The 510-Thread Connection: Universal Magic
Here's where things get smart. That little threaded connection between your battery and cartridge? That's the 510-thread standard—10 threads at 0.5mm each. This universal design means your O.pen battery works with virtually any cartridge from any licensed dispensary. Screw on, power up, and go. It's like having a device that plays everyone's music, not just one format.
Button-Activated vs. Auto-Draw: Pick Your Style
Vape pens come in two activation styles. Button-activated pens require you to press a power button (usually five clicks to turn on/off, hold to heat) giving you precise control over when and how long you're heating. Auto-draw pens detect when you inhale and activate automatically—no buttons, no fuss. O.pen offers both because everyone's got their preference. Want hands-free simplicity? Auto-draw. Like having the control? Button-activated is your move.
Why Voltage Control Matters
Not all cartridges are created equal—different oils have different viscosities and optimal vaping temperatures. That's where variable voltage becomes your secret weapon. Lower voltages (2.4V-3.2V) heat gently, preserving delicate terpene flavors and delivering smoother hits. Higher voltages (3.6V-4.2V) produce denser clouds and stronger throat hits. Our Variable Voltage 2.0 lets you dial in the perfect setting for each cart, whether you're sipping a live resin or ripping a distillate.
Battery Power: The mAh Story
Battery capacity is measured in milliamp hours (mAh)—basically, how long your pen can run between charges. Most quality 510 batteries range from 300-600mAh, giving you anywhere from a day to several days of regular use. O.pen batteries feature rapid USB charging, so even when you do run low, you're back up and running in 20-60 minutes. Plus, our devices automatically shut off after 15 seconds of continuous use to preserve battery life and keep things safe.
The bottom line? Vape pens are elegantly simple devices that do one thing exceptionally well: turn your favorite cannabis oil into smooth, flavorful vapor. And when you choose a quality 510 battery like O.pen's, you're investing in reliable performance backed by a lifetime warranty.
Vape Pen FAQs
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First time with a vape pen? No stress—we've all been there, and it's easier than you think. Here's your start-to-finish guide for getting the most out of your 510-thread battery.
Step 1: Charge It Up
Before anything else, give your new battery a full charge. Connect the USB cable (it comes with your O.pen) to the battery's charging port and plug into any USB power source. Most batteries take 1-3 hours for a complete charge, though our rapid-charge models like the O.pen 2.0 get you ready in just 20 minutes. You'll know it's charged when the LED indicator switches from red (charging) to green (ready to roll).
Step 2: Attach Your Cartridge
Grab your favorite THC or CBD cartridge from a licensed dispensary and gently screw it onto your battery's 510-thread connection—clockwise, just like any screw. Here's the key: make it snug, not tight. Over-tightening can restrict airflow or push down the battery's connection pin, causing issues. If it feels secure and makes good contact, you're golden.
Step 3: Power On (If Button-Activated)
Got a button-activated battery? Press the power button five times quickly to turn it on. You'll usually see a light flash to confirm it's awake and ready. Auto-draw batteries don't need this step—they're always ready when you are. To turn a button-activated battery off later, just do the five-click dance again.
Step 4: Adjust Your Voltage (If Available)
If you've got a variable voltage battery like our O.pen 2.0, now's the time to set your temp. Press the button two or three times (depending on your model) to cycle through voltage settings—the LED color will change to show which level you're on. New to this cartridge? Start low to preserve those tasty terpenes, then bump it up if you want bigger clouds. Different oils vape best at different temperatures, so don't be afraid to experiment.
Step 5: Take Your First Puff
Ready for liftoff? For button-activated pens, press and hold the power button while you inhale gently and steadily through the mouthpiece. For auto-draw pens, just put your lips on the mouthpiece and inhale—the device does the rest. Start with shorter 2-3 second pulls to let the oil warm up, especially if it's your first hit. Cold oil is thick oil, and it needs a moment to get flowing.
Step 6: Wait and See
Here's the part nobody tells first-timers: be patient. Effects from vaping can take 5-15 minutes to fully kick in, especially if you're new to cannabis. Take a puff or two, set your pen down, and give it time before deciding if you want more. This isn't a race—it's about finding your sweet spot.
Pro Tips for the Best Experience
- Store upright: Keep your pen vertical when not in use to prevent leaking
- Clean the connection: Wipe the threading with a cotton swab and rubbing alcohol every week or so—keeps things hitting smoothly
- Don't over-puff: Taking massive, lung-busting hits can flood the cartridge and cause clogs. Steady, moderate draws work best
- Remove carts for storage: Planning to stash your pen for a while? Unscrew the cartridge to prevent leaking and preserve your battery
- Watch for clogs: If your cart gets clogged, try gently warming it with your hands or use the preheat function if your battery has one
Still have questions? Check out our complete vape pen usage guide for even more tips, tricks, and troubleshooting. And remember: every O.pen battery comes with a lifetime warranty, so if something goes wrong, we've got your back.
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Let's talk money. The price of a vape pen can range from around $20 for a basic stick-style battery all the way up to $200+ for premium devices with advanced features. Here's the breakdown:
Budget Range ($20-$40): You'll find simple, no-frills 510-thread batteries that get the job done. These usually have fixed voltage, basic LED indicators, and standard charging times. Perfect if you're dipping your toes in or need a backup.
Mid-Range ($40-$80): This sweet spot gets you quality materials, variable voltage settings, faster charging, and sleeker designs. Most O.pen batteries live here—we believe everyone deserves reliable performance without breaking the bank.
Premium Range ($80-$200+): High-end devices offer features like OLED displays, precise temperature control, longer battery life, and luxury materials. Think of these as the sports cars of vape pens.
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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.
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A little TLC goes a long way. Here's how to keep your 510 battery hitting like new:
Weekly Cleaning (5 minutes):
Grab a cotton swab and some rubbing alcohol. Gently clean the 510-thread connection on your battery where the cartridge screws on—this is where oil residue and gunk love to hide. Let it dry completely (about 30 seconds) before reattaching your cart. Also wipe down the exterior with a slightly damp cloth to keep it looking fresh.Proper Storage:
Always store your vape pen upright to prevent oil from leaking out of the cartridge. Keep it in a cool, dry spot away from direct sunlight or extreme temperatures (like a hot car). If you're not planning to use it for more than a few days, unscrew the cartridge—this prevents accidental activation and reduces leak risk.Charging Best Practices:
Don't leave your battery charging overnight or for extended periods after it's full. While most modern batteries have overcharge protection, it's still smart to unplug once you hit 100%. Use the charging cable that came with your device, and avoid cheap third-party chargers that might deliver inconsistent power.Connection Care:
If your pen stops hitting well, check if the connection pin (that little gold piece in the center) has been pushed down too far. You can carefully use a small flathead screwdriver or paperclip to gently lift it up slightly—just be gentle. Also, don't over-tighten cartridges; snug is perfect.When to Replace:
Even with great care, batteries eventually wear out. If your O.pen battery isn't holding a charge, won't turn on, or shows physical damage, it might be time. But here's the good news: our lifetime warranty means we'll replace it if it fails. Just reach out to our support team.Want the deep dive? Check out our complete vape pen care guide for pro-level maintenance tips.
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Great question—these terms get thrown around interchangeably, but there are real differences.
Vape Pens (What We Specialize In):
Vape pens with 510-thread batteries are designed primarily for cannabis oil cartridges—those pre-filled carts you buy at dispensaries filled with THC or CBD distillate, live resin, or rosin. The cartridge already contains a built-in heating element (atomizer), and your battery just powers it. These are the most common and beginner-friendly option.Dab Pens (For Concentrates):
Dab pens (also called wax pens) are built to vaporize thick concentrates like wax, shatter, budder, or crumble that you load directly into a chamber. They feature exposed coils or ceramic bowls that reach higher temperatures needed to vaporize these thicker materials. You manually load the concentrate, vape it, then reload—more hands-on than cartridges.The Overlap:
Here's where it gets interesting: some advanced 510 batteries (like our O.pen 2.0 Variable Voltage with dab mode) can handle both oil cartridges AND certain concentrate attachments, giving you versatility. But generally, if you're vaping pre-filled cartridges, you want a 510 vape pen battery. If you're loading your own wax, you want a dedicated dab pen.Which Is Right for You?
If you prefer the convenience of pre-filled cartridges and want something clean and easy, stick with a 510 battery. If you're a concentrate enthusiast who wants full control over what you're vaping and don't mind the extra steps, explore dab pens. Most folks in the cannabis world use both—cartridges for convenience, concentrates for potency. -
Pen acting up? Don't panic—most issues have quick fixes. Here are the most common culprits:
Dead Battery (Most Common):
Obvious but easy to overlook. Try charging your pen for at least 30 minutes and see if the indicator light shows it's charging. If the light doesn't come on at all, try a different USB port or cable—sometimes it's the power source, not the pen.Connection Issues:
If your pen powers on but won't hit, the problem is usually where the battery meets the cartridge. Unscrew your cart and check both the battery's 510 threading and the bottom of your cartridge for oil residue or debris. Clean with a cotton swab and rubbing alcohol, let dry, then reconnect. Also check if the connection pin in your battery's threading has been pushed down—gently lift it slightly with a small screwdriver if needed.Cartridge Problems:
Sometimes it's not the battery—it's the cart. Try your cartridge on a different battery if you have one, or test a different cart on your battery. If other carts work fine, your cartridge might be defective or clogged. Gently warm a clogged cart with your hands or use the preheat function to get oil flowing again.Pen Not Turning On (Button-Activated):
Remember to press the button five times quickly to turn it on. The timing matters—too slow and it won't register. Look for LED confirmation when you do this.Still Not Working?
If you've tried these fixes and your O.pen battery still won't cooperate, reach out to our support team. Our lifetime warranty means we'll replace faulty devices, no questions asked. And for a full troubleshooting deep-dive, check out our guide: 10 Common Vape Pen Issues and How to Fix Them. -
Let's keep it real: vaping isn't risk-free, but when done responsibly with quality products, it's considered by many to be a safer alternative to smoking. Here's what you should know.
The Vaping vs. Smoking Comparison:
Unlike smoking, vaping doesn't involve combustion—you're inhaling vapor, not smoke. This means you're avoiding many of the harmful byproducts that come from burning plant material, like tar and carbon monoxide. Research suggests vaping may be easier on your respiratory system than traditional smoking, though long-term studies are still ongoing.Quality Matters (A Lot):
The safety of vaping heavily depends on what you're vaping. Only use cartridges from licensed, regulated dispensaries. Black market or counterfeit carts have been linked to serious health issues because they can contain harmful additives, pesticides, or cutting agents like Vitamin E acetate. Stick with reputable brands and legal sources—this isn't the place to hunt for deals.Battery Safety:
Quality batteries like O.pen's include important safety features: overcharge protection, short-circuit prevention, and automatic shutoff (our batteries power down after 15 seconds of continuous use). Always use the manufacturer's charging cable, never leave batteries charging unattended for long periods, and inspect your device regularly for damage. If your battery is dented, cracked, or not functioning normally, stop using it.Usage Best Practices:
- Start with lower voltage settings to avoid overheating oil
- Take moderate puffs rather than extremely long draws
- Give your pen breaks between sessions
- Store properly (upright, room temperature)
- Keep away from extreme heat or cold
- Never use a damaged cartridge or battery
What We Can't Say:
We're not doctors, so we can't make medical claims about vaping. If you have respiratory conditions, heart issues, or are pregnant, consult your healthcare provider before vaping. And if you're new to cannabis, start low and go slow—effects can take several minutes to kick in.The Bottom Line:
Vaping with quality hardware and legal cartridges is a popular choice for cannabis consumption, but it's not without considerations. Do your research, buy from licensed sources, and listen to your body. And remember: O.pen batteries are designed with safety first, backed by over a decade of engineering expertise.
