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I have the exact same problem with my 2022 Eva Ribelle...  I got to 37k miles and the immobilizer started tripping randomly, then after a few months it never powered up again.  No heartbeat, no response to charger, nothing.  Checked all fuses (including the glass cylinder fuse). 

At a loss.

Thank you Don and jotjotde.

I consider this issue closed, but wanted to add one more CLUE for someday finding the root cause:

After the first cycle, riding to drain the SoC for the next charge, I parked it at 41%.  When I started it back up to move it to the charger, it displayed 91% SoC.
  The missing 50% that magically disappeared 4 days earlier miraculously reappeared. 

When I put it in drive it gave a status message ( I wish I took a pic to get the exact wording ), that said something like:
  "Charge to 100% to allow for cell balancing and to Align SoC"

I did charge to 100% (which I typically do every 500 miles or so (80% SoC my typical overnight charge)).

And again, no error codes were found in the diagnostic screen (haven't check OBD2 yet, but don't expect anything since I didn't see an actual error since getting un-stuck from 0% SoC).

Thanks again,
 Mike / firmware

I was just being overly cautious (since I didn't know what the failure was).

Ever since I got the firmware update last month, the time estimates for "charge complete" have been even worse than it was (and I found it was pretty inaccurate before (especially for times greater than a few hours)).

My current theory is that one of the cells became dangerously unbalanced from the others (and as a fail-safe the firmware  brought the displayed SoC from 50% to 0% immediately.
...just a theory.

 Regards,
  Mike/firmware

I see.  Your SoC display was not updating with a correct reading.  And my displayed SoC is stuck at 0%, so I see how it could be related.

Sadly, power-cycles, resets, and charging does not un-stick mine.

Mine has been stuck at 0% for a few days now (so I can only ride in limp mode).

Yeah, tried that several times.  All of the relays click (like normal), but still the battery reads 0% after.

RE: 2022 Energica Eva Ribelle that can't read it's own battery level

Good day,

Starting at home at 80% SOC, I rode ~30 miles, then it idle for 4 hours, and then went to ride home.
5 miles into my trip home (at around 55% SOC), the Battery Reading went to 0% immediately.
Gave me Diag Code P1021 (HV CONTACTOR ERROR (I think)) and let me Limp-Mode home 25 miles at 40-50mph.

Tried power-cycles and RESETS (Mode + SET Profile for 10sed)...  runs through relay clicks, but same 0% battery reading.
Says it charges, but always 0% battery reading even after an hour of charging at 1kW,

Can only ride in Limp-Mode.

I checked the fuses, and wiggled the connectors...  when I had it apart, it threw a whole bunch of Faults (but that may have been related to missing "tank" cover LED module).  After clearing those faults, it never threw another fault.

About 1000miles ago, I had it serviced and they upgraded the firmware.

I'm at a loss...  any ideas?

Thanks,
 - firmware (Mike Ware)
 - Tampa, FL

I know what you mean... The keyless ignition feature seems gimmicky to me.  What is the point of adding this more complex system with more failure modes?