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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Sat Feb 13, 2016 9:02 pm 
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Joined: Mon Jun 24, 2013 6:03 am
Posts: 106
Location: Hoffman Estates. IL
Well, after reading these battery comments, and the other 12V battery thread, I decided it was too risky to not change my 12V battery. The original was 2.5 years old and one occurrence of LO. I did NOT have a problem (yet). With the really cold temps here in Chicago (1.5F this morning), it did not seem safe to "let it ride". My radar detector was showing 11.5V in accessory mode.

So, Friday, I drove to Sears. They have a few deep cycle batteries but none that would fit.

I then drove to NTB (National Tire and Battery) and they have NO deep cycle batteries.

I then drove to Pepboys. They had a few deep cycle/marine batteries. None in Group 35 size. But they have a Group 24M size which was pretty close. BUT, during installation discovered the terminal posts are in the front top (vs. back top in the original). There is NO slack in one of the negative cables, so this was a no-go after 1.5 hours.

Enough for one day.

Today, I went to Sams Club to get the Optima Yellowtop Group 35 battery. They installed it. I was told the battery is smaller so the tie-down bracket was not as snug as the original but probably OK. So, I have the new deep cycle battery.

(Interestingly, the radar detector still shows 11.5V in accessory mode, so apparently you should not use this as a diagnostic tool).

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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Tue Feb 16, 2016 11:07 pm 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
Car seemed OK after the dealer found nothing. Drove and acted fine over the weekend.

Now it shows LO again as the door is opened. When shutting down the green charge bar in the center console appears for a split second then goes blank.
Will check the 12v battery when I get home.... hope I make it.

Going to try reboot by disconnecting the 12v battery.


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Tue Feb 16, 2016 11:47 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4115
Location: San Diego
smkettner wrote:
Going to try reboot by disconnecting the 12v battery.


It sounds like the battery is doing a great job of disconnecting itself !!!

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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: RAV4-EV number 2501 heads for the shop
PostPosted: Wed Feb 17, 2016 12:41 am 
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Joined: Thu Feb 21, 2013 6:33 pm
Posts: 163
Location: Angels Camp
Definitely sounds like a bad 12 volt battery. I just replaced mine. Had a similar issue. Car wouldn't turn off. Went with the standard Group 24 battery instead of the smaller Group 35.

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Glenn
Angels Camp
2012 Blizzard Pearl Rav4 EV
15.4 KW Solar PV System
2011 Ocean Blue LEAF
Picked Up 4/29/2011
Clipper Creek CS-60 EVSE at home
and a Leviton 16 amp L2 EVSE for work
116,500 miles on the Rav as of 08-5-16


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Wed Feb 17, 2016 4:13 am 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
Get home tonight and it sits for an hour. Display now reads normal. Battery 12.93 volts.

Tomorrow I carry the voltmeter with me.


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Thu Feb 25, 2016 7:21 am 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
So a few times randomly and infrequent the display is showing the same trouble but the car starts, runs and charges fine.

Today when turning the vehicle off at my charging spot the green bar in center display went blank when it s/b about 75%.
Car did not initially start charging. Timer display times were odd but I don't recall details. Hit charge immediately and car charges normal.

Tonight I disconnected the 12v battery for about two hours for a reboot. Will see if this helps.

I did find it interesting with some latent voltage on the cable of 1.1 volts steadily declining over the two hours to .06 volt.
I guess this is why Tony recommends disconnected overnight to get a full reset.
Did cause the navigation to reboot.


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Sat Feb 27, 2016 4:03 am 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
So far so good with the reboot. No more issues yet. Did see 145 on the GOM today :)


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Fri Jul 01, 2016 4:54 am 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
Today again similar situation as the OP with car failed to charge and failed to run.

It would turn on fine but would not charge or engage to drive. The main contactor seemed to close and then open with a thunk. Changed timer to immediate charge and same result. Battery was 30% but vehicle said LO please plug in to charge. All charge level bars were blank. Climate message said only defrost available. I suppose all that is normal when the vehicle will not keep the main battery connected.

Found a wrench and removed the 12v battery cable for about one minute. Car was able to charge after reconnecting. Drove home fine a couple hours later.

Anyway does this seem normal or is something failing and eventually needs an actual repair?
Does an event like this stay in the trouble codes for later or does the reboot erase the info?


Toyota put in a new 12v battery a couple weeks ago.


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Mon Jul 04, 2016 3:38 am 
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Joined: Mon Feb 24, 2014 8:51 pm
Posts: 631
12 volt battery is dead again today :(


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 Post subject: Re: RAV4-EV number 2501 heads for the shop
PostPosted: Mon Jul 04, 2016 6:28 pm 
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Joined: Wed Nov 14, 2012 9:50 pm
Posts: 4115
Location: San Diego
Well, you sound the issue (dead 12 volt).

Check to see what light your are leaving on (like the rear door light).

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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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