Solid-State Battery Test_ charged smartphone after cut into 2 parts for 24Hr 固態電池實測 剪半24小時仍可充手機

This is a test we made with an engineer from a leading battery brand in America. We cut the battery into half and placed it for over 24 hours.
Our customer wanted to know if it could still charge a phone? The result was really satisfying!
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[@vadivelanellappan42]

it will change battery black mark thinking