I took the Zero to an undisclosed location to give the new battery a workout. I rode it 18.5km off road and achieved a max speed of 68km/h, just a bit short of the manufacturer’s claimed 80km/h. I went as fast as I dared and used full throttle at every opportunity. The forks performed well after their DIY service with random oil grade and quantity.
This is what the battery status looked like afterwards.
After the ride I discharged the battery until it cut off on cell undervoltage, and there was a bit more capacity remaining than the 41% estimate. Also after discharging it, the bike’s own fuel gauge showed red.
So my verdict is that this new battery is plenty good enough and might even work with the existing pack-level voltage monitoring, even if it doesn’t have perfect SoH. I can see how it might deliver something like the claimed 40 miles of range if ridden slowly on flat ground.
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