This is a new battery strap I bought from aliexpress. I'm Satisfied. The price is reasonable, the battery charge is good, and the battery cell is replaceable. It looks like it will be easier to play for a while.
Great! I hope it does not set you hair on fire, lol!
Aside; I recently got my official Oculus Elite battery strap with battery and I could not be happier with this. Each to their own I guess.