powersurge
Posts: 646
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Replaced my LEAF 12v battery after 4 years

Sun Dec 06, 2015 12:07 pm

Newporttom wrote:
TimLee wrote:
Newporttom wrote:Went to dealer and they checked battery before selling me the new one and they said I didn't need one. Battery Health good, CCA 323. Only issue they saw was 12.38 v reading.

Car is 4 years old. 50K miles. New traction battery 1 month ago. Morning of the check it finished 100% at 6;30. I them drove it to dealer 10 miles away at 1 PM. Radio and driver seat heat on low were on.

There suggestion was to check again in 3 months. Any thoughts?

You never provided much information on why you thought you needed a new 12V battery :?:
Why do you think you need one :?:
Did you discuss that in another topic :?:

I would be more confident in the dealer if their battery test gave you an estimate of 12V capacity rather than CCA.
But possible the 12V is OK.


The only reason I was going to replace the battery was because the car was 4 years old. I've had no issues. Here's the printout if it helps any.

Image


Here are a few state of charge charts I found.

http://www.mmbalmainauto.com.au/PDF/Sta ... teries.pdf

http://modernsurvivalblog.com/alternati ... rge-chart/

For the printout you got to be valid, the battery needed to be JUST fully charged. The battery may have been tested as it was in the car, which may have been less than 100% charged. Just by looking at those numbers, it can only tell you the state of strength (at that moment) of the battery, not what the total potential of the battery is. (e.g., It may have been75-95% charged. )

Remember that any business wants to sell, and that they will offer you that new "something" before it is necessary. In the case of a battery, "needing to change" a battery may be one or two years down the line. That is why the load meter is so valuable - it can tell you that NOW "is time to change the battery".

In the future, I suggest that you get a charger, and charge it completely. Then do a load test with the cheap meter I showed earlier. First get a voltage reading, and then do a load test to see if the battery can tolerate the load without "crapping out" (my technical term).

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RegGuheert
Posts: 5434
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Replaced my LEAF 12v battery after 4 years

Sun Dec 06, 2015 6:00 pm

powersurge wrote:In the future, I suggest that you get a charger, and charge it completely.
Good advice! Unfortunately, the forum software links to EVSEs for sale at Amazon when it encounters the word "charger". I will instead highly recommend the BatteryMinder 1500 to do the job.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

powersurge
Posts: 646
Joined: Wed Oct 21, 2015 10:24 am
Delivery Date: 06 Dec 2014
Location: Long Island, NY

Re: Replaced my LEAF 12v battery after 4 years

Mon Dec 07, 2015 7:09 am

Yes, I use the "Battery Tender" and have a set of quick release leads to all my cars so that I can plug in all my car batteries instantly..

DesertSprings
Posts: 149
Joined: Wed Dec 03, 2014 4:40 pm
Delivery Date: 21 Dec 2014
Leaf Number: 319100
Location: Southern California

Re: Replaced my LEAF 12v battery after 4 years

Mon Dec 07, 2015 11:59 am

RegGuheert wrote:
powersurge wrote:In the future, I suggest that you get a charger, and charge it completely.
Good advice! Unfortunately, the forum software links to EVSEs for sale at Amazon when it encounters the word "charger". I will instead highly recommend the BatteryMinder 1500 to do the job.


That's the one I ordered this weekend, after having my battery replaced on my 2015 after just 11 months. My commute is 13 miles each way, which apparently isn't enough to keep the battery healthy.

DesertSprings
Posts: 149
Joined: Wed Dec 03, 2014 4:40 pm
Delivery Date: 21 Dec 2014
Leaf Number: 319100
Location: Southern California

Re: Replaced my LEAF 12v battery after 4 years

Mon Dec 07, 2015 12:00 pm

powersurge wrote:Yes, I use the "Battery Tender" and have a set of quick release leads to all my cars so that I can plug in all my car batteries instantly..


What/where did you connect the negative lead to that allows for a permanent mount?

User avatar
RegGuheert
Posts: 5434
Joined: Mon Mar 19, 2012 4:12 am
Delivery Date: 16 Mar 2012
Leaf Number: 5926
Location: Northern VA

Re: Replaced my LEAF 12v battery after 4 years

Mon Dec 07, 2015 4:04 pm

DesertSprings wrote:What/where did you connect the negative lead to that allows for a permanent mount?
That's a very good question! I intended to do that on our MY2011, but the ground lug which connects to the top of the DC/DC converter has a captive washer attached. Without being able to put the battery lead *between* the lug and the washer I was concerned I might disrupt the grounding of the vehicle.
RegGuheert
2011 Leaf SL Demo vehicle
2011 miles at purchase. 10K miles on Apr 14, 2013. 20K miles (55.7Ah) on Aug 7, 2014, 30K miles (52.0Ah) on Dec 30, 2015, 40K miles (49.8Ah) on Feb 8, 2017.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

Newporttom
Posts: 87
Joined: Tue Jan 04, 2011 9:57 pm
Delivery Date: 17 Dec 2011
Leaf Number: 6194
Location: Saint Johns, FL

Re: Replaced my LEAF 12v battery after 4 years

Sat Feb 18, 2017 7:40 am

Newporttom wrote:
TimLee wrote:
Newporttom wrote:Went to dealer and they checked battery before selling me the new one and they said I didn't need one. Battery Health good, CCA 323. Only issue they saw was 12.38 v reading.

Car is 4 years old. 50K miles. New traction battery 1 month ago. Morning of the check it finished 100% at 6;30. I them drove it to dealer 10 miles away at 1 PM. Radio and driver seat heat on low were on.

There suggestion was to check again in 3 months. Any thoughts?

You never provided much information on why you thought you needed a new 12V battery :?:
Why do you think you need one :?:
Did you discuss that in another topic :?:

I would be more confident in the dealer if their battery test gave you an estimate of 12V capacity rather than CCA.
But possible the 12V is OK.


The only reason I was going to replace the battery was because the car was 4 years old. I've had no issues. Here's the printout if it helps any.

Image


Well it's now 15 months later. Car is 5 1/4 years old. Thinking I should just call dealer and have new installed just to be safe.
2012 Nissan Leaf SL - Cayenne Red
Accepted 12/14/11

jjeff
Posts: 1365
Joined: Wed Jan 13, 2016 9:10 am
Delivery Date: 13 Jul 2014
Leaf Number: 422121
Location: MSP MN

Re: Replaced my LEAF 12v battery after 4 years

Sat Feb 18, 2017 8:05 am

If everything is working and looks good I'd be tempted to just keep going with the factory battery. I know with my last 3 ICE vehicles the factory battery lasted 8+ years before failure. Yes I know a Leaf is different but if it's working, why tempt fate :) I guess if you were worried about being stranded you could invest in a $40 Lithium battery booster, it's what I have in my '13 Leaf as an emergency backup in case the main 12v battery dies(or even just gets run down for some unknown reason). Before the Li booster I had a $29 lead acid version but being lead acid it would require bi-monthly charges to keep it up and was also quite a bit heavier and bulkier than the little/light Li version.
2012 SL purchased used 2/'16
2013 S w/QC purchased new
Juicebox Premium 60a L1/L2 EVSE, Ebusbar 16a L1/L2 EVSE
'12 EVSEupgrade'd 20a L1/L2 EVSE, '13 EVSEupgrade'd adjustable 6-20a L2, 6-13a L1 EVSE
Zencar 13, 20, 30a L1/L2 portable EVSE
GE Durastation 30a

SageBrush
Posts: 862
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: Colorado

Re: Replaced my LEAF 12v battery after 4 years

Wed May 10, 2017 5:12 pm

Are headlights enough load for the voltage test ?
2013 Model 'S' with QC & rear-view camera
Bought off-lease Jan 2017 from N. California with 63.9 Ahr after 22k miles
Car is now enjoying an easy life in Colorado

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