I really don't think any charger will fix it. Probably some burnt out cheaply made capacitor inside the Kindle that's to blame. Plus please read the description "Optimized for Kindle tablets: PowerFast is a 9W charger and will charge your Kindle tablets faster than the white 5W Kindle charger will. (Note Kindle e-readers will charge at the same rate regardless of if you use a 5W or 9W charger)".
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