If you use a vape pen to enjoy THC, CBD, or Delta-8 oils, you’ve likely used a 510 battery. These small, portable vape batteries are among the most popular power sources for vaping cartridges, and there’s a good reason why. Whether you’re new to vaping or ready to upgrade your setup, knowing how these batteries work—and which ones are worth buying—can make a big difference in your overall vaping experience.

What Is a 510 Thread Battery?

A 510 battery is a type of vaping device used to heat and vaporize pre-filled or refillable vaping oil cartridges. The term “510” comes from the threading—ten threads at 0.5mm spacing—that connect the battery and cartridge together. This threading has become the standard across the industry.

510 pen batteries are designed to work with nearly any 510 threaded cartridge, giving you the freedom to mix and match. This flexibility is especially helpful if you use different brands of vape pens, oils, or carts. Most people use them with vaping cartridges that contain THC, CBD, or Delta-8 oil.

Today’s models come in a wide range of designs, from slim auto draw pens to boxy batteries with screens and adjustable voltage. But what they all share is convenience, simplicity, and broad compatibility.

Why 510 Threading Became the Standard

The 510 thread was first used in early nicotine e-cigarettes. As cannabis vaping grew, it became the go-to connection because of its high compatibility. You don’t need to stick to one brand or one type of cartridge. Just screw in your favorite 510 cart, and you’re good to go.

This open standard also encouraged more innovation. Brands could focus on performance and features instead of locking users into one system. According to experts from Mind Vapes, the 510 thread gave users more control and better options without added complexity.

In short, 510 threaded batteries helped shape how modern vape pens evolved—making vaping easier, smarter, and more enjoyable.

Button-Activated vs. Auto Draw Vape Batteries

There are two main types of 510 thread batteries: button-activated and auto draw. Both have their pros and cons depending on how you like to vape.

Button-Activated (Press the Button)

These batteries heat up when you press the button. Many models let you control voltage and offer a preheat mode. That gives you more control over how your oil hits, which can be especially useful with thicker oils or ceramic carts.

For example, the Yocan Kodo Pro is a small but powerful battery with an OLED screen, variable voltage, and USB-C charging. It’s a solid pick if you want more control in a compact form.

Auto Draw

With auto draw, you simply inhale to activate the battery—no buttons, no fuss. These are great for beginners or anyone who wants a low-profile vaping device that’s easy to use.

Batteries like the Ooze Hilo, Kind Pen Slim, and Smyle Labs Mini Plug all offer smooth, hands-free operation. Some even include advanced features like digital screens and built-in USB-C cables, blending simplicity with smart tech.

Top Cart Pens Under $30 That Actually Work

Not all budget cart batteries are created equal. But there are some high quality options under $30 that deliver excellent value, long-lasting battery life, and solid battery capacity.

1. Yocan UNI 3.0 – Big Screen

This box-style battery features an OLED screen, adjustable voltage, and USB-C charging. It also has a chamber that adjusts to fit almost any 510 cart, giving it true universal compatibility.

2. Ooze Slim Twist

A slim, classic pen battery with twistable voltage control and 400mAh battery capacity. It’s been a best-seller for years for good reason—simple, effective, and reliable.

3. Kind Pen Slim

This slim auto draw pen is as easy to use as it gets. Just attach your 510 threaded cartridge and inhale. No buttons, no settings—just consistent vapor every time.

4. Yocan ARI 2.0

An upgraded version of the original ARI, this model adds a digital screen, variable voltage, and better performance. It’s one of the few vape pens with advanced features at a budget-friendly price.

5. Smyle Labs Mini Plug

A super compact, auto draw battery with a built-in USB-C charging cable. It’s perfect for travel or anyone who prefers a clean, stealthy look.

6. Wulf Mods Recon PRO

Durable, button-activated, and easy to grip. Offers variable voltage and reliable vapor production in a small, stylish frame.

7. Exxus Tap VV

This draw-activated battery adjusts voltage through tap motions. No buttons or screens, just clever design packed into a discreet pen.

8. Ooze Hilo

A powerful auto draw pen with a digital display and USB-C charging. It’s slim, comfortable, and surprisingly feature-rich for the price.

These batteries offered cover a wide range of needs, from basic everyday use to advanced features like digital displays and voltage control.

Conclusion

510 vape batteries are still the most widely used option for oil cartridges because they’re flexible, affordable, and easy to use. The universal threading makes it simple to mix and match different cartridges and batteries, giving you more freedom and better control.

Whether you prefer a sleek auto draw pen or a box-style cart battery with voltage control and a screen, there’s no shortage of great choices. Even at lower price points, you can find high quality batteries with solid battery life, smooth performance, and thoughtful design.

No matter your experience level, choosing the right 510 pen battery can upgrade your vaping experience—and it doesn’t have to cost more than a night out.