I'm going for the rumored 'in between' 700wh battery. Currently have the 800wh in my druid and don't think I've ever fully depleted it in 1 ride. Would rather shed a couple pounds for better handling and still have a little more juice than the 600. I believe the 700 and rumored 936wh batteries are the same size as the current 600 and 800 batteries. I have a powerboost f150 with a generator in the truck so I can always use the bed outlets and the fast charger to juice up the bike for 1 last lap if I do end up killing the battery on a long day haha