Toyota Rav4 EV Forum

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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Tue Feb 14, 2017 11:40 am 
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Joined: Sun Sep 27, 2015 11:26 pm
Posts: 296
hi the battery has a vent for fumes on the left side I believe you can get a vent tube at pepboys and guide the tube so the fumes don't gather in the motor cabin


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Tue Feb 14, 2017 6:56 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4075
Location: San Diego
cashcow wrote:
hi the battery has a vent for fumes on the left side I believe you can get a vent tube at pepboys and guide the tube so the fumes don't gather in the motor cabin


Well, that doesn't guarantee fumes don't go in the cabin, but it does direct the corrosive acid away from the car.

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Tony Williams
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Thu Feb 16, 2017 1:10 am 
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Joined: Sun Sep 27, 2015 11:26 pm
Posts: 296
What other fumes are we talking about? I thought the lead acid fumes were the worse. Are there other fumes in the motor cabin? Now i'm starting to wonder if the coolant for example actively releases fumes even though it is inside the pipe line. What about the cooling system? that refrigerant? Break Fluid? Traction battery fluid? Are all of these releasing fumes into the motor cabin?


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Thu Feb 16, 2017 7:26 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4075
Location: San Diego
cashcow wrote:
What other fumes are we talking about? I thought the lead acid fumes were the worse. Are there other fumes in the motor cabin? Now i'm starting to wonder if the coolant for example actively releases fumes even though it is inside the pipe line. What about the cooling system? that refrigerant? Break Fluid? Traction battery fluid? Are all of these releasing fumes into the motor cabin?


I'm talking about the release of hydrogen gas and other toxins from the electrolyte.

Having a vent tube doesn't guarantee that doesn't get into the cabin.

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Tony Williams
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
1-760-798-0342 Office
Hours M-F, 9-5 Pacific Time


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Sat Mar 24, 2018 10:18 pm 
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Joined: Sun Jul 21, 2013 12:00 am
Posts: 90
Woke up to a dead RAV4 yesterday, the 12V was toast. Wouldn't even trickle charge. I bought the Bosch and replaced it.

That's when all the problems started. At first, it wouldn't even slip into gear and I was getting all sorts of errors - EV System errors, airbag errors, power steering errors. After countless reboots, an hour on the J1772 charger, and more reboots, it finally returned to semi-normalcy and could at least drive it. But the EV System errors persisted, and this morning I took it in to the dealer.

The dealer said the car was fine, but there is a very specific process for changing the 12V battery. Obviously, I did it wrong. They charged me $280 to do it correctly.... sigh... I know, but whatever.

So, my question is this : Is there a proper sequence for rebooting the vehicle after replacing a dead 12V?

(One positive note : Glendale Toyota seemed to have zero problems with the Bosch or the Jdemo. )

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2014 RAV4 EV - Shoreline Blue


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Sun Mar 25, 2018 2:45 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4075
Location: San Diego
geo wrote:
Woke up to a dead RAV4 yesterday, the 12V was toast. Wouldn't even trickle charge. I bought the Bosch and replaced it.

That's when all the problems started. At first, it wouldn't even slip into gear and I was getting all sorts of errors - EV System errors, airbag errors, power steering errors. After countless reboots, an hour on the J1772 charger, and more reboots, it finally returned to semi-normalcy and could at least drive it. But the EV System errors persisted, and this morning I took it in to the dealer.


Please, PLEASE, folks. Replace that original Toyota battery now... while this story is fresh in your mind.

You’re going to replace it anyway, and that replacement Bosch battery isn’t going to get any cheaper!

Please, stop the madness. Replace your Toyota battery, even if you’re too cheap or lazy to do so.

Rav4 EV 12 volt Battery recommendations:

https://m.pepboys.com/search/?term=bosch+24f+60ah+agm

Pep Boys # 0838890

I recommend the Bosch or Exide battery with the following specs for around $150-$180:

1) AGM (not flooded acid cells like the original)

2) Group 24F size

3) 60 amp/hour rating


Here are the specific models I recommend:


Bosch S6508B S6 Flat Plate AGM

There is also a Exide battery that is identical, except for superficial color and markings, but normally more expensive.

Exide Edge FP-AGM24F Flat Plate AGM Sealed Automotive Battery

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Tony Williams
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
1-760-798-0342 Office
Hours M-F, 9-5 Pacific Time


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Sun Mar 25, 2018 11:29 pm 
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Joined: Sun Jul 21, 2013 12:00 am
Posts: 90
Great info... I did get the Bosch (thankfully on sale this week.)

But you didn't answer my question : Is there a proper sequence for rebooting the vehicle after replacing a dead 12V?

I think a lot of people here would be interested in that information. Maybe there are service manuals somewhere?

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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Mon Mar 26, 2018 12:19 am 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 621
I swapped mine with no special sequence or reboot. The difference is that it was functioning normal at the time.

I honestly think the dealer just reset your error codes that should have cleared themselves in due time.

Negative terminal off first, then positive.
Swap battery.
Positive on and then negative.

SOP

Then Carson Toyota refused to work on my car because it was not a toyota battery.
Required $200 new battery and then still could not diagnose the car.
Complete morons at Carson Toyota.

Maybe they have improved but I will never go back and will never have anything nice to say about Carson Toyota.


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Mon Mar 26, 2018 1:41 am 
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Joined: Mon May 13, 2013 6:15 am
Posts: 343
Location: Volcano, CA
i've swapped mine after one went dead. nothing unusual. just install the battery get in the car, hit the on switch and you'll see the center console display go through reloading from disk. Dont shut the car off till its completed.

Then when everything looks good, i shut the car off and on again and drive away. Never had an issue (its happened to me twice since i've owned mine).

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2013 Shoreline Blue Pearl Rav4 EV #1634
2018 Tesla Model 3 Dual Motor, ER, EAP


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 Post subject: Re: ALL POSTS - 12-volt battery replacement
PostPosted: Mon Mar 26, 2018 11:34 am 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4075
Location: San Diego
All the stories of “I didn’t have a problem” doesn’t mean the oodles of people who HAVE HAD A PEOBLEM are wrong.

Change that shitty battery before it can cause problems.

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Tony Williams
QC Charge
1780-104 La Costa Meadows Drive
San Marcos, California 92078 USA
tony@QCcharge.com
www.QCcharge.com
Twitter: QCPower
1-844-EV-PARTS
1-844-387-2787
1-760-798-0342 Office
Hours M-F, 9-5 Pacific Time


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