I have a question that arose last night when my SOC was around 60% and dropped suddenly to zero. The pack was cold; shortly after starting up and traveling about 10 blocks at city speeds, I cranked it to WOT a couple of times in getting on the freeway, (OK, while trying to keep up with another bike.
I felt the slight glitch (like an ICE missing) before the green lights flashing and the RECHARGE NOW warning came up. The bike didn't shut off.
I was about 10 miles from home, late at night, on a dark freeway and tried to keep my speed as low as was safe with following traffic. I made it all the way home with the recharge warning lights flashing the whole way.
When I plugged in the charger, it showed 7+ hours of time remaining on the charge, consistent with the reported zero SOC and a 120V charger.
My question: If I had 60% SOC when the dash dropped to zero, and if I was able to travel 10 miles at zero charge, then the SOC wasn't ACTUALLY zero. But then why would the charger report that the full charge time was needed?
At what point during the charge cycle would this discrepancy get reconciled and what, electrically, is going on to create the discrepancy and to correct it? This question is academic only, since it has no practical significance.
Although it WOULD be handy if something could be done to cause the dash to report the ACTUAL SOC, after it shows "zero" so I'd know if I could get home!
My suspicion, from reading the previous posts, that this is a protective function when one portion of the pack gets too low. I just wish there was a way to override the erroneous "zero SOC" to get a true reading.