My current draw at 50% is about 10.5 amps for my 2018 S. I have watched the current draw as SOC reaches 100% and right as it shuts off. (I also like to watch paint dry. 
) There is no tapering. The charger just shuts down instantly and the power drops to 5 watts as it goes on standby. When I then check my cell balance I see 2-3 mV. Perhaps my bike's BMS has decided that my battery pack doesn't need an balancing regimen. That was not the case with my 2014 S. It would taper down for a while before the charger shut down.
Come to think about it, perhaps no need for it to lower much when you're only charging with 1.3KW from the OBC. I usually charge with more than 6KW and the drop in charge rate is quite noticeable near the end. Even lower if I start the charge at a high SOC. Not sure what the BMS is doing, or perhaps it's the charger program. Perhaps it has a lot to do with temperature as well. But if I try to start a charge at 80% SOC at 6KW, I will be lucky if it charges at 2 KW. But if I am at 50%, it will still continue to charge at above 6WK when I get to 80% SOC. I do NOT claim to know what is going on, it's just what I have noticed. Perhaps my Elcons do not like to charge fully when they are started at a higher voltage. Or could the BMS be doing such? I really have no idea what causes such.
But I now know to NOT recharge until I get below 80% SOC. But there are times when I am going far enough that I want all the charge possible when I see a charge station on the way. So then adding the Elcons make very little difference as most of the charging is then done with the OBC anyway. So I can still charge below 2 KW, and then I have little need to get the Elcons out, but it takes too long to charge at that rate when on a trip, so I try to avoid it and take my chances on my range by riding a bit slower than I normally would.
-Don- Auburn, CA
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Topic: Need help interpreting the MBB log (Read 1127 times)