3.7 XL – 650 Mah | High Capacity 3.7 Volt Vape Pen Battery | 4 Colors

starting at: $32.95

(9 customer reviews)


  • 3.7 Volt, perfect for a wide range of oil cartridges
  • Huge 650 Mah capacity for extended usage
  • Lifetime Warranty
  • 510 Thread vape pen battery for use with all cartridges
  • Available in Rose Gold, Rugged Wood Grain, Rugged Black, or in Stainless Steel
  • For Aromatherapy purposes only
  • Not for use with NICOTINE E-LIQUIDS
  • To mix and match colors on multiple packs specify in note section

The 3.7 XL is the next step up from our best selling 3.7 volt vape pen battery.  The increased capacity means less frequent charging and gets you through longer travel days and longer hikes.  The 510 thread is compatible with almost every oil cartridge while the 3.7 voltage works well with original style cartridges or ceramic cell and gives just the right temp for most oils.

Add on and fill a vari-flow ceramic cell cartridge, perfectly matched for this battery Here.

* Does not include cartridge


Additional information

Number of Vape Batteries

1, 2, 5, 10


Steel, Rugged Black, Rose Gold, Wood Grain, Rugged White

Button or Buttonless

Button Activated, Buttonless (Autodraw)

9 reviews for 3.7 XL – 650 Mah | High Capacity 3.7 Volt Vape Pen Battery | 4 Colors

  1. Destinee H. (verified owner)

    Good stuff

  2. Robert A. (verified owner)

    Easy to use. Easy to charge. Have ordered on two occasions and feel very satisfied with the products. Quality…

  3. Tara J. (verified owner)

    Great customer service. I had an issue with my initial order and they replaced the device immediately. Very easy to reach customer service with a fast resolution. Great product! Thank you!

  4. Harold B. (verified owner)

    Works great.
    Lasts a long time.
    More compact (shorter) than other 650 batteries I have.
    Very satisfied.

  5. Roger (verified owner)

    Awesome product! Thank you!

    • O2VAPE

      Thank you Roger

  6. Chris (verified owner)

    Great product, easy to use, long charge and good for travel.

  7. Dave L. (verified owner)

    Works great every time! Battery lasts forever. Super fast shipping. Will probably order another. Highly recommend

    • Dana E. Shoched

      Thanks Dave, Enjoy!

  8. Robert P. (verified owner)

    A great battery that works seamlessly.

    • Dana E. Shoched

      Awesome! Enjoy Robert!

  9. Dennis D.T. (verified owner)

    Had an issue with the first one I ordered but Customer Service / Tech Support was exceptionally helpful in diagnosing the issue. Within a few business days I had a replacement delivered to me. This battery performs very well and I am pleased with the product and the support from O2 Vape.

    • Dana E. Shoched

      Thank you Dennis and welcome to the family 🙂

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