SMRTR AIJun 23, 2026Facebook Engineering

How Meta Engineered Ultra-Narrow Batteries for AI Glasses

SMRTR summary

Meta engineered ultra-narrow steel-can batteries, some as slim as 7mm, to power its smart glasses. By replacing traditional wound electrodes with stacked layers, Meta reduced power loss and improved peak performance. Battery capacity grew 30% between Ray-Ban generations, while the new Display glasses feature a 248 mAh cell.

SMRTR provides this summary for quick context. The original article belongs to Facebook Engineering.

Read the original article
SMRTR AI

Get the next batch of curated summaries in your inbox.

This archive is built from SMRTR newsletter summaries. Subscribe for hand-picked stories without the extra noise.