Belkin 8820ea00236 Manuel De L'utilisateur page 10

Troubleshooting
If your device is not charging or operating properly, take the following steps:
1. Disconnect the Netbook Power Adapter from its power source.
2. Verify that the correct power tip has been installed by checking the
Power-Tip Compatibility List. NEVER force a power tip into an
electronic device.
3. Reconnect the Netbook Power Adapter. Check that all connections
are secure.
4. Plug the correct power tip into your electronic device. The device should
begin charging regardless of whether it is powered on or not.
5. If you are still experiencing problems, please contact Belkin.