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Why Batteries Lose Capacity Even When Not Used

Your battery is dying right now — even if you're not using it. A lithium-ion battery can lose up to 20% of its capacity in a single year just from sitting in a drawer. No usage. No charging. Just existing.
In this video, we break down the real science behind why batteries age on their own — from the SEI layer slowly trapping lithium ions, to why storing your phone at 100% charge is quietly destroying it, to why your battery percentage is probably lying to you.
Once you understand what's happening at the molecular level, you'll never think about battery health the same way again.

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