ElectricMotorcycleForum.com
Makes And Models => Zero Motorcycles Forum | 2013+ => Topic started by: ges on May 03, 2016, 02:28:50 AM
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I own a 2014 Zero S and I have noticed the last few times I have charged it stops before 100%. Today it stopped on 95%, last time on 96%. Is this something that is normal? Anyone else experiencing this?
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I own a 2014 Zero S and I have noticed the last few times I have charged it stops before 100%. Today it stopped on 95%, last time on 96%. Is this something that is normal? Anyone else experiencing this?
My 2014 SR has done this for many months. It usually finishes charging somewhere between 87-93% and remains at that level even after the bike is turned back on later that day. The battery voltage is still 116 volts so I know it is being charged to full even if the dash does not show it.
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I see this on my 2014 all the time. If I unplug, wait for the dash to go blank and then plug back in it will immediately show 100%. In other words, the bike is fully charged but there is a glitch with the display.
Also, if you unplug and wait for the display to go blank and then turn the bike on it will usually show 100%.
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My 2014 S will charge to 98% then 24 hours later the charger comes back on and finishes charging to 100%. Balancing occurs during both charging periods. :)
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On the 2016's the only way you know true SOC when charging is to unplug everything, let it shut down and then turn the bike on. On a recent trip I planned to charge for an hour twice instead of a single two hour charge with my Elcons. At the end of an hour the dash showed about 60% SOC. When I turned the bike on the SOC jumped to 75% SOC. Similar experience with the second hour of charging later. This is made worse by the fact that charging the last 2% or so is far slower than the 2014's. Bottom line is you are done charging when the green light on the Elcons comes on. At that point you are about 98-99% SOC regardless of what the dash or app may show. If you try to get that last 1-2% it can take up to 40 minutes or more.
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I got my 2013 FX used, so, can't speak to any initial charging when new. From day one, it would charge to 95%, showing 5.0x kW.
I noticed by accident that if I unplugged it, then, plugged it back in, it would go to 97% 5.122 kw ( or, something like that ). If I
unplugged it a second time, then plugged it back in, it would charge to 100% 5.336 kw. Not sure if it ever went higher than that,
but, that is the highest it has ever been since I have owned it. I also have the external charger. If I plug in both chargers, it charges
to 100% first time. The next morning, when I come out, no matter how high the finished charge was, it was at 95%. Lately,
( two years and 10K miles later ) is is only showing between 87% and 91% after settling down. Again, no matter how high the
charge was at completion. I discovered that if I took bike off of charger at 100%, then, rode, it dropped to 95% after almost
no distance, so, figured that it just took off the "surface charge" and put me back to where it would have been the next day.
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For what it's worth, having been a nuclear technician in the US Navy and training on land-based submarine mockups with 300kW IGBT-based AC-DC power converters, I am impressed when any instrument that measures an electrochemical state winds up being accurate OR precise (https://en.wikipedia.org/wiki/Accuracy_and_precision). Or ... not on fire.
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Thanks for good comments, seems like this is nothing to be worried about then :)
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What may be happening at least in some cases is that the charging actually does stop at 100% but the dash and the phone app do not reflect that. That is why if you unplug the charger when it shows 70% SOC when you turn the bike on the SOC will be much higher. Have seen that several times.