>>420208016
In terms of cord management, some people do use rigs that suspend the cable. Make sure to get one of the cable suspension systems actually made for VR cables. If you try to DIY it, there's a good chance you'll damage your cable.
Others, like myself, just carefully manage the cable. I always keep mine behind me and it runs over to the PC. You get used to it.

In terms of battery life, I can't assist there. I don't use quest 2.