8 million years later
I have determined that this issue was either a) due to it being the first time I used them b) I hit one of the buttons on them that are for phones and screwed them up or something. I am up to about 4 hours now and it hasn't died, and the box says 7 hours and the reviews say around 5 most of the time, so they are ok.
edit: Ok they died, but I have figured out the issue. The ADAPTER died the headphones light is still on. So I assume if I plug these into something with actual bluetooth they will last a little longer.
Yes I managed to pair to computer and it is quite angry about it but still working.
They couldn't have mentioned the battery for charger and battery for headphones are not the same charge?