Oryginally cable was charging normally and for now charge but with out effect topic

Hello
1 year ago i buy used p880 with box charger usb cable. Charger and usb cable working but 1 mounth ago telephone need a lot of time to charge (icone of charging shows charge mod with out slow charge!) after i plug to the same charger usb cable from xperia neo v and it works what happend? Oryginally usb cable from 4xhd was working for one year and stopped? icone shows charging mod but i need 2h to charge 3%
Sending files works on these 2 cables
I dont uderstand what happend
Telphone was working on JellyFish, oryginal rom and for now CM11

Greetings from poland :D