2000 Hyundai Sonata battery or supply problem

yesterday i drived car was allright but today when i open car i found that central locking system not working and try to start car it's wasn't start, battery and fuese are good, After hour I tried again central locking and all light working but still cannot start car that means battery 's problem but somthing elase problem in there, so any budy know what's wrongs with my car
Thanks