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TomT
Posts: 10565
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: Replaced my LEAF 12v battery after 4 years

Tue Feb 17, 2015 8:28 am

Optimas are no longer what they once were before the company was sold. The quality has declined dramatically and there is now little to recommend them...

drees wrote:I'd be tempted to replace with an Optima yellow-top deep-cycle battery
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier. Model 3 reserved.

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Stanton
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Location: Plano, TX
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Re: Replaced my LEAF 12v battery after 4 years

Tue Feb 17, 2015 9:54 am

garsh wrote:I had a standard lead-acid battery (OEM) last 10 years in the car I traded in for my Leaf. ;)

I would wonder what early warning signs you would get for the 12V battery is on its last legs


That's nice, but I sure wouldn't advise anyone to wait 10 years (or even 5) to replace a 12v lead-acid battery ;)

In an ICE car, you might get a clue that the 12v battery is going bad from (poor) starter cranking, etc., but in an EV, the warning signs may not be so obvious. In fact, they may not even make sense (difficult to troubleshoot)! Bottom line: if there was ever a car worth spending a few extra $$ to replace the 12v lead-acid with a Lithium, the Leaf is it. See my blog post for more details about my experience.

http://stanton.myevblog.com/2012/01/16/ ... -lead-out/
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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Nubo
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Location: Vallejo, CA

Re: Replaced my LEAF 12v battery after 4 years

Tue Feb 17, 2015 11:54 am

TomT wrote:Optimas are no longer what they once were before the company was sold. The quality has declined dramatically and there is now little to recommend them...

drees wrote:I'd be tempted to replace with an Optima yellow-top deep-cycle battery


They sold out to Johnson Controls and the manufacturing was moved to Mexico. I have also read complaints and personally had an Optima Yellow-top that did not provide very good service. I switched to an Odyssey battery on that car; they are still highly regarded.

For the LEAF I didn't see an Odyssey solution fit well, so I eventually came up with the battery below. Since LEAF has no need for "starting current" I selected a full-on deep-cycle design that is used for solar power installations.

http://www.solar-electric.com/batteries ... -420t.html
I noticed you're still working with polymers.

Bob
Posts: 292
Joined: Fri May 24, 2013 7:13 pm
Delivery Date: 30 May 2013
Location: New Hampshire

Re: Replaced my LEAF 12v battery after 4 years

Tue Feb 17, 2015 6:25 pm

Stanton wrote:...Bottom line: if there was ever a car worth spending a few extra $$ to replace the 12v lead-acid with a Lithium, the Leaf is it. See my blog post for more details about my experience.
http://stanton.myevblog.com/2012/01/16/ ... -lead-out/


Stanton,

Thank you for the write-up and suggestion.

My uneducated opinion is that the Lead-Acid battery market has gone very competitive, to the extreme of all batteries coming with superlatives in the name, but the same basic cost-cutting construction, as little lead as they can get by with and not have too many warranty returns. "Extreme" "Deep Cycle" "Commercial" "Everstart"? "Baloney" :-(

The replacement Lithium battery market is not so mature, so they should be better. But we don't have much history on Lithium replacement batteries used in 12V car systems. We've seen what can go wrong with first-generation Leaf Lithium batteries in hot climates. I'd hope that these replacement Lithium batteries are more mature, but we just don't have the history. If we're paying 2X the price of a lead-acid battery for a Lithium battery, it would be nice to hear of people who have >4 years of trouble-free service from them. It could be that some people are selling perfect batteries and others are selling batteries that are not appropriate for long-term use in our cars. We just don't have the data yet.

Again, this is just one person's opinion.

Bob

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Randy
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Leaf Number: 0191
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Re: Replaced my LEAF 12v battery after 4 years

Tue Feb 17, 2015 8:44 pm

Thanks, Jeremy...I looked, and thought that all the timer settings were still in place, but I'll check it again before charging tonight...

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drees
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Re: Replaced my LEAF 12v battery after 4 years

Wed Feb 18, 2015 12:09 am

Nubo wrote:I switched to an Odyssey battery on that car; they are still highly regarded.

For the LEAF I didn't see an Odyssey solution fit well, so I eventually came up with the battery below.

Looks like the Odyssey PC925MJT should drop in, though perhaps mounted on it's side:
http://www.amazon.com/Odyssey-PC925MJT- ... B00249CQUM

Looks like the popular Miata AGM battery should also fit and is half the price of the Odyssey/Optima and well reviewed:
http://www.amazon.com/gp/product/B0038N ... bs_dp_ss_2
'11 LEAF SL Powered By 3.24 kW Enphase Solar PV

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Nubo
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Location: Vallejo, CA

Re: Replaced my LEAF 12v battery after 4 years

Wed Feb 18, 2015 1:01 am

drees wrote:
Nubo wrote:I switched to an Odyssey battery on that car; they are still highly regarded.

For the LEAF I didn't see an Odyssey solution fit well, so I eventually came up with the battery below.

Looks like the Odyssey PC925MJT should drop in, though perhaps mounted on it's side:
http://www.amazon.com/Odyssey-PC925MJT- ... B00249CQUM


I think that just missed on one dimension on my 2012 and side-mounting would have been problematic because of the complicated positive terminal attachment. And the 27 amp-hours is less capacity than I wanted.
Looks like the popular Miata AGM battery should also fit and is half the price of the Odyssey/Optima and well reviewed:
http://www.amazon.com/gp/product/B0038N ... bs_dp_ss_2


I considered it. It's what Miata owners settled for when they discovered they could no longer get the original Panasonic that was OEM on the earlier Miatas. It's what I used in my '90 Miata after the original battery finally gave out. It got weak after about 4 years whereas the OEM Panasonic lasted nearly 10. Not a bad car battery but true deep-cycle capability was my primary consideration for the LEAF application, and "cranking amps" was not a consideration at all. A solar storage battery fit the bill perfectly by my way of thinking.

http://www.solar-electric.com/lib/wind- ... manual.pdf
I noticed you're still working with polymers.

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hill
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Leaf Number: 0659
Location: Lake Forest, CA

Re: Replaced my LEAF 12v battery after 4 years

Wed Feb 18, 2015 6:06 am

JeremyW wrote:Charging timers will be turned off too after the battery swap (if you use those). :)
I suppose you could keep a 12v source up during the swap . . . . . for those of us who hate resetting things ~
.

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Randy
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Re: Replaced my LEAF 12v battery after 4 years

Wed Feb 18, 2015 6:46 am

I thought about that, but just didn't want to go through the trouble...Everything turned out fine...

joeriv
Posts: 113
Joined: Sun Mar 24, 2013 1:33 pm
Location: Fairfield County CT

Re: Replaced my LEAF 12v battery after 4 years

Wed Feb 18, 2015 9:51 am

For the LEAF I didn't see an Odyssey solution fit well, so I eventually came up with the battery below. Since LEAF has no need for "starting current" I selected a full-on deep-cycle design that is used for solar power installations.

http://www.solar-electric.com/batteries ... -420t.html


Any issues installing this? Looks like a perfect solution.
2017 Leaf S with QC, JUN mfg date

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