i had a problem with my wiimote. here's the situation explained:
it turned out to be a fake wiimote!!! not an original nintendo product. the thing was working, the buttons, the sensor... but it was too sensitive. so when u buy a new wiimote you should keep an eye on a few things. the fake one was missing 2 stickers and a certificate print. here's what i'm talking about:
the 1st sticker is located underneath the battery holders:
the second thing is this print:
in example.. wiimotes sold in europe should have the CE print:
the last sticker is a kinda gold shiny eliptic one also located underneath the battery holders but the 2 most important things are the 1st two mentioned above...
...so when u buy a new wiimote watch for the signs