murthyu
Posts: 1
Joined: Sun Jan 21, 2018 11:30 am
Delivery Date: 10 Sep 2011

2011 Leaf not charging

Sun Jan 21, 2018 11:35 am

Some background:

My 12v battery had completely died for about 2 months - i jumpstarted it with a portable charger and drove it around for 10 miles or so.

Came home and tried to charge my driving battery - but the car refuses to charge. And shortly after that, I noticed that the 12v battery had died again. I had just got this battery (12v) replaced about a year ago. I guess i will need to get a new battery but trying to see if I can save $100 on get another battery again.

Someone suggested leaving the car running overnight - but i am afraid i will drain the main driving battery. Any thoughts?

Question for you folks - is the driving battery somehow related to the 12v battery? Seems odd, but i thought i would check with you folks first.

Thanks a ton

User avatar
Stanton
Posts: 2048
Joined: Thu Feb 03, 2011 10:56 am
Delivery Date: 01 Sep 2011
Leaf Number: 7458
Location: Plano, TX
Contact: Website Twitter

Re: 2011 Leaf not charging

Sun Jan 21, 2018 11:46 am

Obviously your 12v battery is shot (doesn't matter if it's 1 yr old or 10 years old); replace the 12v battery.
You will not "drain" the main battery pack charging the 12v, but that's not the problem.
Dead 12v battery = no start/charge/telematics/etc
2011 Blue Ocean SV w/floor mats & window tint
12v LiFePO4 battery & FIAMM 74100 horns
Wet Okole seat covers (front)
Tor's low-power heater mod
2013 sun visor
3G modem upgrade
L2 EVSE Upgrade
Battery Pack replaced (Rev E) @51 months and 41k miles

Evoforce
Posts: 782
Joined: Wed Mar 04, 2015 9:58 pm
Delivery Date: 28 Feb 2015
Location: Fountain Hills Arizona

Re: 2011 Leaf not charging

Sun Jan 21, 2018 11:25 pm

Do you have a battery warranty?
*2011 Leaf 1 bought 2/28/15 @ 28,000ish mi 10 bar (8 bars @ 11/25/15 @ 37,453 ) (New lizard @ 39,275 mi @ 1/20/2016) Now 52,166 mi.
*Tesla Model S 61,000 mi
*2011 Leaf 2 bought 4/28/15 @ 24,000ish mi 12 bar (new lizard Dec. 2014 @ 22,273 mi) Now 35,485 mi

powersurge
Posts: 971
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: 2011 Leaf not charging

Mon Jan 22, 2018 6:07 am

This post is really not one for anyone to diagnose, because there are so many variables.. This is something for the OWNER to determine.... The original poster does not sound mechanical, and should just take it to Nissan. Wishful mechanic people can also do the following.....

MY OPINION
Any car owner NEEDS TO OWN a plug in battery charger. You cannot just have the car take care of all the charging. Batteries will always discharge at times, and need to be topped off to 100% charge. Another MUST HAVE is a voltage meter/ tester.

PLAN A

First, the owner needs to establish that the battery is fully charged and strong...

(1) That requires a plug-in battery charger and a "load test".
(2) If the battery passes the load test, then keep the battery and go to step 4.
(3) If load test is bad, get a new, good battery and go to step 2.
(4) With the battery connected, start the car and connect a VOLTAGE METER... Voltage should be around 13.5-14.5 volts. Then try turning on your headlights and check the voltage again. Voltage should still be the same. Then add heat or A/C, voltage should be the same. If voltages check out, go to step 6.
(5) If voltage is lower, then go to Nissan because there is a problem with the charging system.
(6) You have confirmed battery is good, and charging system is good. For a week, on a daily basis, 1) check the battery voltage (with the car off - Voltage should be 12.2-12.6 at rest. 2) with car on, voltage should be in the 14 volt range. If voltages are low at this point, then you have a parasitic draw on your battery when the car is off, or a car charging system problem. Then take it to Nissan.

PLAN B -
If you don't want to be bothered with PLAN A, then stop trying to guess what is wrong and take it to Nissan, who knows the car and its electrical system..

GerryAZ
Gold Member
Posts: 1694
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: 2011 Leaf not charging

Mon Jan 22, 2018 6:40 pm

The LEAF (and many other modern cars) run lower float voltages on their 12-volt batteries than cars manufactured in the 1990's or earlier. 12.9 to 13.1 volts at the battery terminals (measured with an accurate meter) is normal unless battery temperature is cold. Voltage will be higher (up to 14.5 volts) if temperature is low and/or battery is discharged enough to be absorbing higher charging current.

It is clear to me from the original post that the 12-volt battery is bad. I have had conventional 12-volt batteries fail on cars driven daily in as little as 6 months before replacing them with high-quality AGM batteries which last several years in my climate.
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015

powersurge
Posts: 971
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: 2011 Leaf not charging

Tue Jan 23, 2018 5:46 am

GerryAZ wrote:The LEAF (and many other modern cars) run lower float voltages on their 12-volt batteries than cars manufactured in the 1990's or earlier. 12.9 to 13.1 volts at the battery terminals (measured with an accurate meter) is normal unless battery temperature is cold. Voltage will be higher (up to 14.5 volts) if temperature is low and/or battery is discharged enough to be absorbing higher charging current.

It is clear to me from the original post that the 12-volt battery is bad. I have had conventional 12-volt batteries fail on cars driven daily in as little as 6 months before replacing them with high-quality AGM batteries which last several years in my climate.


Yes, GerryAZ, I agree completely with your post. I have a full-time digital voltage meter installed on my dashboard. When I use the Headlights and heat, a/c, the voltage goes up to about 14.2-14.3 volts. When I drive normally, with no accessories, the system voltage is about 12.8-12.9 volts.

I think, however, that people too often downplay the Leaf's charging system when the problem is really a bad 12v battery. I have my Leaf (since new) for almost 3.5 years, and have ALWAYS had a fully charged healthy original battery. So I think the Leaf has a great charging system.

cmwade77
Posts: 127
Joined: Tue Nov 14, 2017 5:04 pm
Delivery Date: 15 Nov 2017

Re: 2011 Leaf not charging

Tue Jan 23, 2018 3:07 pm

murthyu wrote:Some background:

My 12v battery had completely died for about 2 months - i jumpstarted it with a portable charger and drove it around for 10 miles or so.

Came home and tried to charge my driving battery - but the car refuses to charge. And shortly after that, I noticed that the 12v battery had died again. I had just got this battery (12v) replaced about a year ago. I guess i will need to get a new battery but trying to see if I can save $100 on get another battery again.

Someone suggested leaving the car running overnight - but i am afraid i will drain the main driving battery. Any thoughts?

Question for you folks - is the driving battery somehow related to the 12v battery? Seems odd, but i thought i would check with you folks first.

Thanks a ton

Umm, if you bought the battery a year or so ago, it should still be under warranty, just take it back to where you purchased it.

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