For what it's worth, we have a 2011 with the original 12v battery. No
problems so far. One thing to note is the car is always parked outside,
so the small solar panel is presumably effective at keeping the battery
charged.
Peri
<< Annoyed by leaf blowers ? https://quietcleanseattle.org/ >>
------ Original Message ------
From: "Cor van de Water via EV" <[email protected]>
To: "Electric Vehicle Discussion List" <[email protected]>
Cc: "Cor van de Water" <[email protected]>
Sent: 09-Dec-21 18:35:26
Subject: Re: [EVDL] Leaf 2013 Ghost Loads on 12V battery
I have a bt of experience with the 2013 in particular: I bought it
soon after its 5 year battery replacement warranty ran out and so its
12V battery was already 5y old. I do not know its history.
What we noticed however was that the original software in the 2013
only charged the battery occasionally (I believe it was only once a
week) from the traction pack and the weird thing with the Leaf was
that when it charged the aux battery, it monitored the current and
once the current dropped significantly it would go to "maintaining"
level: it would start witht he DC/DC delivering something like 14.2V
but as soon as the aux battery current (there is a separate current
sensor on the aux battery) would drop to a few Amps, then the voltage
of the DC/DC would go to something like 13.2V essentially halting any
further charging. The weird result of that behavior is that the
*weaker* your aux battery, the *less* it gets charged. I actually used
a regulated power supply to occasionally give the 2013 a good full
charge but eventually just installed a new battery so the behavior of
the 2013 resulted in a better charged battery every drive and charge
cycle.
Then a year ago the traction battery failed completely and luckily I
was still within the California 8 years warranty on drivetrain, so
Nissan installed a new pack and apparently also updated the firmware
of the computers. I noticed that the blue LED for the 12V charging now
comes on every 24h to maintain the aux battery, so apparently Nissan
knows of the problem and has updated the firmware to increase the aux
battery maintenance. So, possibly all you need to do is to go to
Nissan and complain about your aux battery dying and they will update
the firmware and you are good.
I parked a Leaf more than 2 months and besides going slightly down in
traction pack SoC, there was no problem with the aux battery.
Hope this helps,
Cor.
On Thu, Dec 9, 2021 at 5:16 AM Mark Hanson via EV <[email protected]> wrote:
Hi folks
After parking the 2013 Leaf in the garage for 3 weeks, it wouldn’t go when I
tried to drive it last night, flashed as error Contact the Dealer with a bunch
of yellow exclamation points. I remembered from the EVDL to check the 12V
battery and it was 9V so I charged it up and then all the worthless error
messages went away and could drive it. It’s been falling out of favor with my
son and wife since we’ve been driving the Tesla Y and Bolt more but probably
need to drive weekly to maintain the 12V battery that seems to be on a shallow
charge at 13.4V from the dc dc converter. Does anyone know what the ghost name
load is and how to eliminate it? Maybe need to keep in a battery tender float
charger when not driving it. I’ll have to check the ma load tonight after work.
I’ll be retiring from GE Renewable Energy at Christmas so have more time to
fool with this stuff
Have a Renewable Energy Christmas
Mark in Roanoke Va
Sent from my iPhone
_______________________________________________
Address messages to [email protected]
No other addresses in TO and CC fields
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
ARCHIVE: http://www.evdl.org/archive/
LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
_______________________________________________
Address messages to [email protected]
No other addresses in TO and CC fields
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
ARCHIVE: http://www.evdl.org/archive/
LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
_______________________________________________
Address messages to [email protected]
No other addresses in TO and CC fields
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
ARCHIVE: http://www.evdl.org/archive/
LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
