Zero should soon be putting battery voltage on the riding screen for the app I hope, as it is the ONLY metric you can trust when it comes to range left. Amp Hours, Kwh remaining, range, distance to empty, SOC all rely on the current sensors and coulomb counting. I have run empty at 30% before, and I have gone 30+ miles after hitting 0%. If you hit the inside BMS button to do a reset, all of those metrics will change drastically, except voltage. Voltage is the one thing that you can always trust as it will never lie. It is what it is. And that's the great thing about it. Not sure why it isn't on the Zero App yet, but logically it ultimately will be, and hopefully soon.
Until then I have a hack that I use everyday until Zero puts Voltage as a choice on the app. and for me it would go right dead center in the middle. And that's to set the display to turn off quicker and let the phone time out and go blank while riding. Press the center button once, and the screen comes back on with the Zero app in the background and a pop up window that will say something like "reconnected to bike" and you have to press ok. but now for me it stays on the battery page while I'm riding. And now I can see battery voltage from the battery page on the app while riding to the next charge station.
Under load on the highway if you ever get close to 93 volts while going 70 mph, you will soon be restricted by top speed and should plan to charge with a fast charger soon. The power discharge map will not let you pull more power than to go below 93 volts at first. I believe it's about 35,000 watts accelerating uphill that is the max power you can get once you've felt the cutback. At this point you have about 10 miles to empty at highway speeds, about 40 miles to empty if you instantly get off the highway and start going 25-35 mph on surface streets (the last 10 miles will be painfully slow however). If you have all the charging stations on your route memorized, you can plan accordingly. Keep in mind if you go off throttle at this point you have about 96-97 volts in the pack.
The bike will roll under its own power down to 88 volts but it is extremely slow! The only times I ever see 88 volts is when I get to my planned charge station and its occupied or out of service and I have to sometimes go another 10 miles to find one and I already arrived at my calculated 0% on the dash (I like to ride fast enough to try to always plan to arrive at exactly 0% each time as 99.9% of the time it is just fine, and you can always charge with 110v for a few minutes if you need to). I should mention the chargepoint app will show blue if the station is occupied and gray if the station is out of service. So you can check at your previous charge stop ahead of time to see if you need to make alternate plans. This is another reason the chargepoint app is much more useful than plugshare. There are about 20 reasons but this is definitely one of them if you choose to use it.
Once you cross past the 93 volt barrier to 90-92 volts you will go progressively slower at speeds below what main traffic roads can handle so plan a route with back roads or neighborhood roads. Avoid a route with any incline hills as you will have to push or have your dog pull you with your charge cord, as the power is limited, not the speed. So just because you could do 20 mph on flat ground you might not be able to even go 1 mph up an incline road without assisting.
Lets hope an new app is released soon with voltage on the display. After a quick learning curve so you understand voltage sag under load, its the only metric you need to predict range accurately. I rarely trust my SOC meter if I have access to voltage on the app.
If any of this sounds confusing just know that if you see 95 volts or below while maintaining 70 mph on the freeway on flat ground, and your dash says 45% left, that you might want to trust that it's really about 15% left and start expecting a power cutback soon and just stop in at the closest charge station and quickly top off using multiple J plugs if you have the Diginow chargers or other fast chargers.
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