dhanson865
Moderator
Posts: 1477
Joined: Wed May 25, 2011 7:12 am
Leaf Number: 16156
Location: Tennessee

Re: Instructions for replacing the 12v battery on the Leaf (D51R)

Wed Jun 29, 2016 8:06 pm

Image

Looks like the OEM battery from 2011 to me.

mfg date 10/11 per the door jamb label, I think I see a Dec 10 2011 date code on the battery.
2012 Leaf tires 195/65/15 Dunlop Enasave 01 A/S, 15" Rims
wiki/index.php?title=Real_World_Battery_Capacity_Loss
(leaf range chart)
(efficiency 3.x KW vs 6.x KW)
please join Truedelta.com and input your repairs.

leafstar
Posts: 1
Joined: Thu Oct 12, 2017 1:03 pm
Delivery Date: 12 Oct 2017
Leaf Number: 337090

Re: Instructions for replacing the 12v battery on the Leaf (Group 51R / Optima D51R)

Thu Oct 12, 2017 1:21 pm

Decided to change out the stock 12 volt lead acid battery that my 2014 Leaf SL came with after 3 1/2 years with the Optima Yellow Top D51R battery. Was a pretty simple and easy process taking 15-20 minutes from start to finish.

- Ensured the car was parked, shut off and unlocked for 15+ minutes before battery replacement process
- Removed the old stock battery restraints and cables with a 10mm wrench (negative first followed by positive)
- Prep the new battery with a terminal cleaning brush and cleaned the connectors on the vehicle
- Applied the corrosion fiber washers to the new Optima Yellow Top D51R battery
- Placed the new battery in the vehicle, secured the restraints and reconnected the cables (positive first then negative)
- Powered on Leaf, validated all services were working
- TCU errored out, had to turn the vehicle off and remove the fuse controlling the TCU for 10 seconds and reinsert
- Signed back into Carwings

GerryAZ
Gold Member
Posts: 1417
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Instructions for replacing the 12v battery on the Leaf (Group 51R / Optima D51R)

Thu Oct 12, 2017 7:42 pm

I just installed an Optima yellow top D51R in my 2015. A 10 mm deep socket fits the terminal clamps and hold down bolts. I turned the car off, opened the hood, disconnected and removed the old battery, used baking soda and water to clean battery tray and surrounding area, wire brushed terminals and posts of new battery, and then installed and connected the new battery. Power was disconnected for extended time because I was in no hurry and I let the battery tray dry before installing the new battery.

The trip odometers, miles/kWh, and elapsed time displays in the dash were cleared, but the information in the navigation system was retained. Radio presets, clock, recent routes, CarWings settings, etc. were all retained. Start/end times and days for charge timers were retained, but timers were turned off. Also, the auto up function of the driver window was disabled so I had to reactivate it by fully opening the window and then fully closing it and holding the switch in the close position for several seconds after the window was fully closed.

I started the car and used LEAF Spy Pro to check for DTCs. Four codes were present which were easily cleared. I drove around a bit and then charged the car overnight. There was no need to connect an external charger.
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

LeftieBiker
Posts: 6956
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: Instructions for replacing the 12v battery on the Leaf (Group 51R / Optima D51R)

Thu Oct 12, 2017 8:28 pm

There was no need to connect an external charger.


Did you check the 12 volt battery voltage? I don't know about Optimas, but many batteries come with less than a full charge.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

GerryAZ
Gold Member
Posts: 1417
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: Instructions for replacing the 12v battery on the Leaf (Group 51R / Optima D51R)

Fri Oct 13, 2017 9:23 pm

LeftieBiker wrote:
There was no need to connect an external charger.


Did you check the 12 volt battery voltage? I don't know about Optimas, but many batteries come with less than a full charge.


Voltage was 12.599 when I put it in. After charging the car overnight, it was 12.782 so DC-DC converter is charging it without issue and I have no reason to use an external charger.
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

Return to “Problems / Troubleshooting”