# Applying 'extreme heat' to lithium-ion batteries reportedly restores their capacity, and I think it's the sustainable tech breakthrough of 2025

> Would you heat your earbuds’ lithium-ion batteries to over 300F / 150C to make ‘em charge like new? Research suggests there might be some benefit to doing so – but also, please don't do it.

- **Source:** [TechRadar](https://www.techradar.com/audio/earbuds-airpods/applying-extreme-heat-to-lithium-ion-batteries-reportedly-restores-their-capacity-and-i-think-it-could-be-the-sustainable-tech-breakthrough-of-2025?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=6807ac234d57dfff5ef3135f)
- **Published:** 2025-04-22
- **Category:** Audio & Video
- **Tags:** #earbuds #batteries #lithium #heat #extreme #tech #applying #breakthrough
- **Canonical:** http://localhost:4321/a/6807ac234d57dfff5ef3135f

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_GearOpen's distilled summary. The full original article is published at TechRadar (source link above); GearOpen does not republish the source's full text._