Meta’s AI glasses have different battery and charging specs depending on the model, but they all assume you’ll recharge with the included case.[1][2][3][4][5][6][7]

Ray‑Ban Meta (Gen 1 and most “classic” AI glasses)

  • Runtime (glasses): Up to about 4 hours of moderate mixed use, around 3 hours if you’re doing continuous audio plus voice assistant.[4]
  • Case capacity: A fully charged case can recharge the frames about 8 times.[4]
  • Charge speed (glasses): About 75 minutes for 0–100% in the case; roughly 50% in about 22 minutes (quick top‑up).[4]
  • Case charging: Case recharges over USB‑C in about 3.5 hours.[4]

Ray‑Ban Meta Gen 2

  • Runtime (glasses): Up to about 8 hours of “typical” non‑constant use, roughly double Gen 1.[2][3]
  • Case capacity: Case can provide up to about 48 additional hours of use (multiple full recharges of the glasses).[3][8][2]
  • Charge speed: Fast charge to about 50% in 20 minutes in the case.[2][3]

Ray‑Ban Display (AI glasses with lens display and neural band)

  • Runtime (glasses): Battery is around 248 mAh, with up to about 6 hours of mixed use claimed.[6]
  • Neural band: Separate 134 mAh band battery, up to about 18 hours claimed.[6]
  • Case capacity: Case can provide up to about 24 additional hours of runtime.[6]
  • Charging: Case charges via USB‑C; neural band uses a proprietary cable.[6]

Oakley Meta (sports‑oriented variants)

  • Runtime (glasses): Typical‑use claims are around 8–9 hours, with up to about 19 hours on standby depending on model.[5][7][3]
  • Case capacity: Case can add roughly 36–48 hours of extra usage, again varying by specific model.[3][5]

Practical notes

  • “Typical use” = intermittent music, calls, and occasional photos/AI requests; continuous music or video recording will cut those numbers significantly.[1][5][4][6]
  • Cold weather and heavy camera/AI use noticeably reduce runtime; many users treat the case like an AirPods case and dock the glasses whenever they’re not on their face.[9][10][5][6]
  1. https://www.meta.com/help/ai-glasses/303057485648146/
  2. https://about.fb.com/news/2025/09/ray-ban-meta-gen-2-better-battery-life-video-capture/
  3. https://www.pcmag.com/news/metas-new-ray-ban-smart-glasses-double-the-battery-life-improve-cameras
  4. https://www.ray-ban.com/usa/c/frequently-asked-questions-ray-ban-meta-smart-glasses
  5. https://www.engadget.com/wearables/oakley-meta-glasses-review-a-familiar-formula-with-some-upgrades-120026844.html
  6. https://www.tomsguide.com/computing/smart-glasses/meta-ray-ban-display-review
  7. https://www.uploadvr.com/oakley-meta-glasses-announced/
  8. https://www.youtube.com/watch?v=XBhYx8nx6lk
  9. https://www.reddit.com/r/RayBanStories/comments/188k2vr/meta_rayban_disappointing_battery_life_winter_34f/
  10. https://www.youtube.com/watch?v=sgDdfvRDCQM
  11. https://www.facebook.com/groups/395416269682034/posts/788808840342773/
  12. https://www.facebook.com/RayBan/posts/the-new-ray-ban-meta-features-longer-battery-life-an-hd-camera-and-advanced-meta/846225697775236/
  13. https://www.reddit.com/r/RayBanStories/comments/1d8r79a/check_case_charge_percent/
  14. https://www.meta.com/ai-glasses/ray-ban-meta/

https://www.ray-ban.com/usa/accessories/ARW0001ATray-ban meta charging case-brown/8056262481943