My wii remotes wont charge?

woke morning , decided go on wii, tried turning remotes on, did not come on.
put them in charging cradle charge up.
it's been 3 hours , they've not charged.
i'm not sure if should leave longer or if wont work @ all!
can help? :) x

i woke morning , decided go on wii, tried turning remotes on, did not come on. put them in charging cradle charge up. it's been 3 hours , they've not charged. i'm not sure if should leave longer or if wont work @ all! can help? :) x

Consumer Electronics Games & Gear Nintendo Wii Next