Couple of things going on here, I suspect:
1) you should charge up your collar for the first time, which you have done, however, you need to run it or leave it on until it completely discharges...then charge it again...you should be good there.
2) always keep your collar on the charger when you are not using it...you can't overcharge it, and it will always be ready for you.
3) the dogs hair can sometimes hinder the prongs from getting to the skin. I would bet that after some running around, the probes worked there way onto the dogs skin, seeming like an intermitant response....if nothing else, check to see if it is working on the palm of your hand...my bet is that the hair got in the way....let me know if you have any more questions...
Labs
1) you should charge up your collar for the first time, which you have done, however, you need to run it or leave it on until it completely discharges...then charge it again...you should be good there.
2) always keep your collar on the charger when you are not using it...you can't overcharge it, and it will always be ready for you.
3) the dogs hair can sometimes hinder the prongs from getting to the skin. I would bet that after some running around, the probes worked there way onto the dogs skin, seeming like an intermitant response....if nothing else, check to see if it is working on the palm of your hand...my bet is that the hair got in the way....let me know if you have any more questions...
Labs