Thread: Troubleshooting Kindle 4 (9023) bricked after sleeping?
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Old 02-11-2024, 12:11 PM   #9
Quoth
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Location: Ireland
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About 4.2V approx is fully charged and 3.6V empty.
2.9V is dead.
No, risk of fire or even explosion.

You need a new battery (really a cell).

https://batteryuniversity.com/articl...batteries-work

Li-Poly cell in a Kindle is similar to Lithium Ion.
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