No problem on a 500Wh. Usually do W2 an another trail (Blade or Penhydd) and still have battery left at the end. Just enjoy. Should be there as well tomorrow
All are excellent trails. You have missed a Blue Scar and Penhydd both sharing the same climb.
The trails you do and which order will depend on where you park (Afan forest or Glyncorrwg) but are all linked. I tend to always park in Afan as offers more options in the way I combine the trails...