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 Post subject: Re: 12-volt battery replacement
PostPosted: Wed Dec 09, 2015 4:55 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3746
Location: San Diego
The size of battery supplied in the car when new is Group 35.


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 Post subject: Re: 12-volt battery replacement
PostPosted: Mon Dec 14, 2015 5:40 am 
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Joined: Mon May 13, 2013 6:15 am
Posts: 311
Location: Fremont, CA
i replaced mine with a battery i gotfrom Tractor Supply when i had the car less than 6 months. that was 2 years ago and ive had no problems. i just matched the physical size of the battery. 24F i think. i think i spent $70 on the replacement. i do put the battery on a maintainer if i ever park the car for more than a few days though.

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2013 Shoreline Blue Pearl Rav4 EV #1634


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 Post subject: Re: 12-volt battery replacement
PostPosted: Mon Dec 14, 2015 8:33 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3746
Location: San Diego
n3ckf wrote:
i replaced mine with a battery i gotfrom Tractor Supply when i had the car less than 6 months. that was 2 years ago and ive had no problems. i just matched the physical size of the battery. 24F i think. i think i spent $70 on the replacement. i do put the battery on a maintainer if i ever park the car for more than a few days though.


I think that Costco would have a similar price.

Battery sizes:

Group 24F: 10 3/4(L) x 6 13/16(W) x 9(H)
Group 27F: 12 1/2(L) x 6 13/16(W) x 8 15/16(H)
Group 35 : 9 1/16(L) x 6 7/8(W) x 8 7/8(H)


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 Post subject: Re: 12-volt battery replacement
PostPosted: Mon Dec 14, 2015 6:16 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3746
Location: San Diego
The premium Optima Yellow Top battery can be found here:

http://www.optimabatteries.com/en-us/sh ... e-battery/

Or shop for the best price on Amazon:

http://www.amazon.com/Optima-Batteries- ... B000MSDKMA

Or Google search "8040-218-d35"


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 Post subject: Re: 12-volt battery replacement
PostPosted: Sat Dec 19, 2015 7:31 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3746
Location: San Diego
Here's the thread on the Valence lithium 12 volt battery:

viewtopic.php?f=9&t=1617


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 Post subject: Re: 12-volt battery replacement
PostPosted: Wed Jan 06, 2016 10:44 pm 
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Joined: Fri Mar 29, 2013 3:55 pm
Posts: 83
Costco sells RV/watercraft deep-cycle 12V batteries, I've personally purchased like 4 of those for our RV. I'll probably try those instead of the regular automotive battery based on Tony's recommendation.

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2012 Rav4-EV (Blizzard Pearl #1187)
2015 Fiat 500e (Electric Orange, 2yr lease)
2X Clipper Creek CS-60 garage chargers
5.28KW Roof PV array (Solarcity)


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 Post subject: Re: 12-volt battery replacement
PostPosted: Fri Jan 15, 2016 5:39 am 
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Joined: Thu May 15, 2014 8:36 am
Posts: 15
I checked my battery voltage with voltage meter in the lighter socket.
In the morning before starting it was 12.0 volts. According to the battery meter that is down to 50%.
Car is 20 months old. So looks like I need a new battery.

Wonder if the dealer will replace it on warranty?

Weird thing is that after the ignition was on, the charge voltage was 14.5 - 14.7 volts, way above the recommended 13.8 charging voltage for lead acid batteries. I wonder if this shortening the battery life because of overcharging.

-- Scott


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 Post subject: Re: 12-volt battery replacement
PostPosted: Fri Jan 15, 2016 7:03 am 
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Joined: Thu Jan 17, 2013 11:13 pm
Posts: 1509
Location: Los Altos, CA
I wouldn't count on a dealer replacing it under warranty until it causes a fault.

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 Post subject: Re: 12-volt battery replacement
PostPosted: Fri Jan 15, 2016 5:26 pm 
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Joined: Sat Sep 21, 2013 3:44 pm
Posts: 278
Location: SF Bay Area
z3scot wrote:
I checked my battery voltage with voltage meter in the lighter socket.
In the morning before starting it was 12.0 volts. According to the battery meter that is down to 50%.
Car is 20 months old. So looks like I need a new battery.

Wonder if the dealer will replace it on warranty?

Weird thing is that after the ignition was on, the charge voltage was 14.5 - 14.7 volts, way above the recommended 13.8 charging voltage for lead acid batteries. I wonder if this shortening the battery life because of overcharging.

-- Scott


That is normal to charge above 14V.

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 Post subject: Re: 12-volt battery replacement
PostPosted: Sat Jan 16, 2016 12:28 am 
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Joined: Thu May 15, 2014 8:36 am
Posts: 15
I am going to take it to the dealer for a battery load test to see if it is replaceable. The warranty is 3 years or 36,000 miles.

Since I am leasing it, I don't want to buy an expensive battery in case I turn it in.

-- Scott


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