Why is the original Samsung 9300 seat not fully charged?

Samsung 9300 original seat is not fully charged. Suggestion:

1. Try to reinstall the battery (possibly due to poor contact).

2. Try to replace the power socket.

3. Check whether the original charger is used. If not, please try to replace the original charger.

4. Try to replace other batteries

5. Check whether the third-party battery software has been downloaded recently and try to uninstall it.

If the problem still exists, it is recommended to take the purchase invoice, maintenance card, battery and seat to the local Samsung service center for testing by professional engineers.