I have never run out of battery on my 700Wh Tubo Levo Comp. Even with full turbo it lasts longer than I do. I've had a few rides with less than 20% left, so might be pushing it with the 500Wh pack.
These bikes are super hard to find lately. Bought one for my son, my wife and myself. Been riding mostly at the local parks. First EMTB's for us, and loving it!