How Meta Engineered Ultra-Narrow Batteries for AI Glasses

Meta engineers developed ultra-narrow steel-can batteries for smart glasses, achieving widths as narrow as 7mm, and improved capacity across generations, including a 248 mAh cell for display glasses.

From the source
Meta’s AI glasses needed batteries with widths as narrow as 7mm, narrower than anything that existed before.
engineering.fb.com

Visit source ↗engineering.fb.com

Announced: 23 Jun 2026 16:00 UTC
Detected: 03 Aug 2026 21:12 UTC (+41d after)

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