From the source
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.
How Meta Engineered Ultra-Narrow Batteries for AI 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
