dsny said:
Another quick question. For 6kw models, on the dash it shows three recharge times: 240v 6kw, 240v 3kw, and 120v. This seems to be showing in a number of models, that the 6kw and 3kw times are the same. Say, 1:30 for 6kw and 3kw and 2:00 for 120v. Is this correct? Wouldn't it be something like 0:45 for 6kw, versus 1:30 and 2:00?
Also there is another SV Leaf nearby that has the 240v 6kw, 240v 3kw, and 120v, but then it says "To 80% charge" rather than "To 100% charge." The dealer could not explain why it would only charge to 80%. :?:
EDIT: Okay, this post
/viewtopic.php?f=27&t=16308&start=0#p360348 explains that "to 80%" is just a setting.
Ok. It's a long story. First off, the time estimates are usually off, usually pessimistic (e.g. if it says it'll take 5 hours, it'll be done in 4 or so, even at 208 volts.) It seems like the fuller the battery, the more accurate the 6 kW estimate is, until a certain point.
No, 0:45, 1:30 and 2:00 wouldn't necessarily be right...
Nissan has been sloppy in how they labeled the OBC wattage (see http://www.mynissanleaf.com/viewtopic.php?p=295770#p295770" onclick="window.open(this.href);return false
. I've observed '11 and '12 Leafs pulling ~3.8 kW out of the wall out of the 208 volt EVSE L2 30 amp EVSEs at work. Those have a "3.3 kW" OBC. I believe 3.3 kW is the max that can make it to the battery on that OBC. (Side note: Chevy Volts w/their 3.3 kW OBCs only pull ~3.1 kW out of the same EVSEs, also at 208 volts, but I digress.)
My '13 Leaf SV w/"6.6 kW" OBC pulls about 5.7 to 6.0 kW at 208 volts (our EVSEs at work don't run at 240 volts). I believe on a 240 volt EVSE, 6.0 kW would be the max that would make it to the battery.
When charging to 100%, as the battery nears full, it tapers and does usually 3 bounces at the end, see graph at http://www.mynissanleaf.com/viewtopic.php?p=338038#p338038" onclick="window.open(this.href);return false; (taken by someone else on a 240 volt EVSE, hence the higher wattage than me). The last hour or so are at a reduced rate, bounces included. This is why the estimates for 3 kW, 6 KW and 120 volts aren't that far apart, when near full.
If you charge only to 80%, the power is cut abruptly and there's no taper nor bounces. I've confirmed both behaviors many times via Chargepoint's graphs w/my Leaf.
The estimates (6 kW, 3 kW, 120 volts) ARE very far apart, esp. for 120 volts (can only draw 1.44 kW w/the stock 12 amp EVSE) when the battery is low. Side note: I did hit the bug at http://www.mynissanleaf.com/viewtopic.php?f=30&t=14685" onclick="window.open(this.href);return false;. But that's moot now as '14+ Leafs no longer even have that 80% charge setting.