Please help! Ipod is working, shows red battery percentage but doesn't show solid orange when I try to charge.

Hi there!

I think this problem may be my fault as I have been very busy with my exams for the past three months and neglected to charge my ipod shuffle (second generation). When I tried to charge it today, it blinks orange repeatedly when plugged into the wall port via usb, then the light disappears, leaving me to believe it isn't charging.

It can't play music.

It shows up on itunes when I plug it into my computer.

After searching the net I finally resorted to 1) updating my ipod 2)restoring my ipod

The restore worked partially, as now when I switch on my ipod it shows the red light and successfully plays music.

But when I plug it into the wall socket/computer, it still repeatedly blinks orange, then the light disappears completely.

My ipod is already a few years old, so is this a normal battery problem, should I be worried and how should I fix it?

Thank you so much in advance! I hope you guys can help me~! 😢