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Joined: Fri Apr 23, 2010 2:45 pm
Delivery Date: 11 Apr 2011
Leaf Number: 898
Location: Vacaville, CA

Replacing 12 V battery

Tue Jul 11, 2017 6:35 am

So, after 6 years it looks like I finally need to replace the 12V battery. If I connect battery charger to battery cables maintaining 12V to car while I change the battery. Will that allow me to avoid all of the various resets called for in the manual.
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Deliverd 4-5-11 w/ 8 miles on her

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Re: Replacing 12 V battery

Tue Jul 11, 2017 6:39 am

I wouldn't try any "tricks" to replace the 12v.
Obey the 5 minute rule (or whatever the manual says) before replacing, and just bite the bullet on the few things you have to reset (like the clock); it really isn't that much.
Last edited by Stanton on Wed Jul 12, 2017 6:20 am, edited 1 time in total.
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

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Leaf Number: 025018
Location: Central Arkansas

Re: Replacing 12 V battery

Tue Jul 11, 2017 9:26 am

Yeah, don't have it hooked to a charger with the battery disconnected. Quick way to fry electronics, even if it may work.
Pulled the trigger on going EV on 10/2016 with a 2012 Leaf, and a Tesla Model 3 reservation expected to receive in June 2018.

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Joined: Fri Jan 27, 2017 2:17 pm
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Location: Lancashire UK

Re: Replacing 12 V battery

Wed Jul 12, 2017 6:35 am

Would a 9 volt memory saver plugged into the cigarette socket work! https://www.amazon.com/Powerbuilt-64853 ... CDFP3JTRVP

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Re: Replacing 12 V battery

Wed Jul 12, 2017 1:05 pm

The accessory socket is dead with the car off, and you want it off to change the battery. A 9 volt battery connected directly to the battery cables might work. People have done what you want to do, so let's wait for one of them to post here.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
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