My gaming battery has never died but when it gets low I can recharge it by gaming, reading some fantasy books, watch any of the LOTR movies and just reading this site.
I agree with reading, watching movies and playing videogames, but I also like to indulge in other activities or hobbies that have nothing to do with gaming or scifi/fantasy - like painting or doing yoga. Meditation really helps clear out my head. Also, just getting together with friends for a couple of hours to go to dinner or hang out helps me a lot, too.
I find that when I overwork I cut out exercise and skimp on sleep and it has a definite impact on me. I feel much better after getting in a run, doing my nightly yoga, etc. Also having regular days where you are not working even though you could be helps. For me as I take home work on the weekend saying its Saturday and not touching any of it gives me an actual break from the grind even if I do work stuff on Friday and Sunday nights.
so Swimming, fishing, or anything to do with water. Relax and spend time with friends who dont game. Let them tell you some stories of their life and see if you can get ideas from them
I've found that a quiet place helps. If you can get that at home, great. If not, I've found that an art museum or a library provides a good atmosphere. Then let yourself out of the bag. Ask yourself what interests you, then explore that a little bit. Scribble nonsense in a notebook. Read about Roman economics. Stare at a pointilist painting for an hour.
Be aware of whatever surrounds you. Inspiration is everywhere...