Camera battery Dead?... TRY THIS FIX
Channel: truthseekers666
Date: 2012-12-09

Sony camcorders and many other manufacturers have "intelligent" chargers which decide the battery is knackered and wont charge it. Boo hoo... (read more...)
Get a cheapo non intelligent charger and they will charge it. 
Dont throw out your old batteries, especially if they were happy one day and then didnt work the next... thats a clear sign of "intelligent charger syndrome" - the battery is fine just the charge circuit chip or thingy is gone inside the battery, not the battery itself. 

Hope this helps many people. IF IT HELPS YOU CLICK LIKE ON THIS VIDEO