My ps4 controller won't blink orange when charging in rest mode.

I have always had charging problems with my ps4 and I use it rarely. Now I've wanted to charge it because It said the battery is low so I plugged it in and turned on rest mode. I think it's supposed to blink orange when it is getting charged in rest mode. Now the problem is it turns orange and blinks twice, then the orange is gone and there is no light at all. Is that normal or a problem?