You'll be fine on one battery bud. I ride it regularly on my Kenevo.
Usually in Eco except for the nasty second climb (out of Glyncorrwg) where I'm in Trail and usually finish with around 15% battery left.
Have fun??
Your welcome @Rob Hancill - hope you have a cracking day... Gutted I can't join you.
W² is only graded as a Black due to the distance, both The Wall & Whites Level are Red graded trails individually. Neither has anything to catch you out!
Look forward to the footage Rob??
Guys W2 is fine on a single 500wh battery (I ride it regularly on my Kenevo) and takes in the two best trails Afan has to offer. I would suggest starting at Afan Argoed and grabbing a bite to eat at The Corrwg Cwtch Cafe @ Glyncorrwg Ponds. This as about half way round and just before the BIG...
Download Jan's eBike Field app... test it out on a couple of runs then donate to help with its development. Great app that's way better than the Specialized one.