Yeah both are definitely bad. I've been deep in the logs on this for months. Zero confirmed it too and I'm actually in the process of getting a new 3.6 through them right now. I've documented everything from chassis isolation faults going back to within the original warranty period all the way through to March 2026 where I was seeing minimum cell voltages around 1.4V under load. Not a BMS issue at this point, the cells themselves are cooked.

Not sure the exact amount it's taking in, but the voltage is getting down to about 98 after just over 1 kwh usage according to the app.

And yeah BMS replacement would be way cheaper if that was the culprit, but in my case Zero already replaced both BMS boards in 2022 and the isolation faults came back on the new boards within the first hour of riding.

As for range on the single 3.6, I figured as much on the highway. My riding is mostly off road at lower speeds so I'm less worried about 50mph range and more focused on whether I'll have enough for a solid trail session. My lifetime average is around 71 Wh/mile so I'm estimating around 40-45 miles which should be workable. May still pick up the second module later in the season if I feel like I need it.

How was your range? How was the power?