redLEAF
Well-known member
As we're getting our street repaved soon and our '12 LEAF SL w/QC (and down 1 capacity bar) won't have access to our garage L2 charger decided to activate that 'free' EZ-Charge card now (part of that settlement on the whole battery degradation issue) as it will more than cover the time I'll need it --- plus, never really had a need for the QC as we don't drive that far so felt it was time to try it as it's no cost ... anyway here is the scenario and question:
We did plenty of errands yesterday so GOM read out was 9 miles of range left, initial low battery warning flashing, just 1 battery capacity bar left. I plugged in and started charging on an EVgo nrv QC charger and the display shows I still have 25% of the battery left?? I snapped a quick photo after just a few minutes of charging and you can see after about 2 1/2 minutes it had jumped to 32%. At 100% charged of course the battery was not 100% but 9/12 charged (or about 75%) as I understand the fast charging will max at about 80% with a healthy battery as it restricts it due to heat from putting so much juice so quickly, etc. -- I did also see my battery temp increase by 1 bar as I would expect it. After it finished, it was fairly close to when I charge it at home on my L2 at 80% during the week; so the question is ... what percent capacity does the battery have left at a single capacity bar on the read out? I guess its compared to running an ICE when the gauge is on the 'empty' line (how lucky do you feel you'll make it to the next gas station) ... but 25% seems high, but then again perhaps there is some kind of logic that automatically puts a buffer in their system so it doesn't go past 80% ... I would have thought at 1 bar left that would be less than 10% (I know the bars are not linear but this seems off; 1 bar would be 8.333% if linear on a scale of 100%). I'm not going to worry about it but just seems strange ... has anyone seen this and can offer an explanation? BTW, QC charge took about 25 minutes; about what I expected; very nice and quick system and the card worked the first time --- much better than ChargePoint; of course I'd rather just get a 'free' refreshed battery but maybe if I use QC every day it will speed up the degradation --- and no, don't plan on doing that!
We did plenty of errands yesterday so GOM read out was 9 miles of range left, initial low battery warning flashing, just 1 battery capacity bar left. I plugged in and started charging on an EVgo nrv QC charger and the display shows I still have 25% of the battery left?? I snapped a quick photo after just a few minutes of charging and you can see after about 2 1/2 minutes it had jumped to 32%. At 100% charged of course the battery was not 100% but 9/12 charged (or about 75%) as I understand the fast charging will max at about 80% with a healthy battery as it restricts it due to heat from putting so much juice so quickly, etc. -- I did also see my battery temp increase by 1 bar as I would expect it. After it finished, it was fairly close to when I charge it at home on my L2 at 80% during the week; so the question is ... what percent capacity does the battery have left at a single capacity bar on the read out? I guess its compared to running an ICE when the gauge is on the 'empty' line (how lucky do you feel you'll make it to the next gas station) ... but 25% seems high, but then again perhaps there is some kind of logic that automatically puts a buffer in their system so it doesn't go past 80% ... I would have thought at 1 bar left that would be less than 10% (I know the bars are not linear but this seems off; 1 bar would be 8.333% if linear on a scale of 100%). I'm not going to worry about it but just seems strange ... has anyone seen this and can offer an explanation? BTW, QC charge took about 25 minutes; about what I expected; very nice and quick system and the card worked the first time --- much better than ChargePoint; of course I'd rather just get a 'free' refreshed battery but maybe if I use QC every day it will speed up the degradation --- and no, don't plan on doing that!