Toyota Rav4 EV Forum

It is currently Fri Sep 22, 2017 7:56 pm

All times are UTC [ DST ]




Post new topic Reply to topic  [ 212 posts ]  Go to page Previous  1 ... 13, 14, 15, 16, 17, 18, 19 ... 22  Next
Author Message
 Post subject: Re: Not getting a full charge with extended battery?
PostPosted: Thu Nov 12, 2015 9:17 am 
Offline

Joined: Fri Apr 12, 2013 7:30 am
Posts: 132
Location: Gardena, CA
What usually happens after sending it to Service is that the techs take the RAV out for a test drive. More often then not, they like to drive it sportier than what you may be used to, which will mess up the range indicator for about a week. When you establish your regular driving pattern again, you'll notice that number will adjust more closely to what you had it after each charge. The battery and charging are likely fine.

_________________
2012 RAV4EV - VIN 1323 - White Blizzard - Gardena, CA
Meep Meep -> Honk! Honk! Mod


Top
 Profile  
 
 Post subject: Re: Not getting a full charge with extended battery?
PostPosted: Thu Nov 12, 2015 6:38 pm 
Offline

Joined: Fri Apr 26, 2013 12:56 pm
Posts: 127
Location: Webster, NY
You can always reset your GOM by pulling the 12 v battery overnight. Tony posted the steps here ....viewtopic.php?f=7&t=1625

That will also let you see what your battery degradation looks like. I found that my numbers were great (97.2%). I have had zero exposure to high heat and rarely push the battery with either extended charges or running down to turtle.

Remember the GOM is just a GOM and a really pessimistic one at that. I can't remember a single long trip in any conditions where I did not exceed the starting GOM by at least 10% and typical is closer to 20-30%.

_________________
Pearl White Rav4 EV delivered May 2013 - 49000 miles and counting
Clipper Creek LCS-25
8.16kw solar
Image


Top
 Profile  
 
 Post subject: Rav4 EV only has 88 miles range
PostPosted: Sat Mar 12, 2016 7:46 am 
Offline

Joined: Sat Mar 12, 2016 7:29 am
Posts: 3
Hi,

I just bought a used 2013 Rav4 EV with 30,000 miles. I installed a 240 volt charger in my garage and fully charged the car on Extended Charge. My range is 88 miles. Do I need to replace the battery? I bought an extended 100,000 mile warranty with Toyota and am wondering if this is something that is covered with the Extended Warranty.


Top
 Profile  
 
 Post subject: Re: Rav4 EV only has 88 miles range
PostPosted: Sat Mar 12, 2016 12:04 pm 
Offline

Joined: Wed Nov 14, 2012 9:50 pm
Posts: 3834
Location: San Diego
Your battery is fine.



If you want to know how much degradation the battery has (and reset the Guess-O-Meter (GOM)), make sure that the battery is at room temperature, then:

1) Car must be off
2) Fully charge vehicle (extended) with the J1772 port (not CHAdeMO)
3) Battery must be near room temperature
4) Disconnect the 12 volt battery negative cables and leave off for several hours minimum (overnight is ideal.... there are three negative cables; you need to remove all three)

Next day:

5) Reconnect 12 volt battery (all three negative cables)
6) Energy gauge will show Full (16 illuminated segments) and "LO" on the GOM
7) Hold foot on brake and press START button with key fob nearby
8) Wait for navigation unit to complete its start up (about 20 seconds)
9) Press START again with brake pedal depressed
10) RAV4 EV will be in READY mode, air conditioner will be off
10) The displayed range is "RATED RANGE" at 3.5 miles per kWh

11) Divide this Rated Range by 146 to get usable battery capacity compared to new.

Example: 142 rated range / 146 = 97.2% battery capacity from new

***********

What needs attention after a 12 volt battery reset:

1) Stored radio / SiriusXM stations will remain, however your last station listened to will likely be gone

2) Cell phone pairings are not 100%, so I would check. i have had to delete my phone (and the car from my phone) and re-pair it

3) Map display mode

4) Volume of navigation voice notifications

5) Random play modes

6) Charge schedule will be retained, but it won't work without hitting the "SAVE" button on the previous screen

7) state selection from destination address page

8) GOM will be reset


Top
 Profile  
 
 Post subject: Re: All Posts about the Distance To Empty "GOM" Range Meter
PostPosted: Sat Mar 12, 2016 4:54 pm 
Offline

Joined: Sat Mar 12, 2016 7:29 am
Posts: 3
Ok. Thank you. I will try this.


Top
 Profile  
 
 Post subject: Re: All Posts about the Distance To Empty "GOM" Range Meter
PostPosted: Thu Mar 17, 2016 5:43 pm 
Offline

Joined: Sat Mar 12, 2016 7:29 am
Posts: 3
Hi Tony,

Can I disconnect the 12-volt battery cables while the car is charging? Or should I fully charge the car and then disconnect the battery?

Also, it looks like we are getting about 110-115 miles on a full charge in extended mode. My parents live in Palmdale, CA and we live in Manhattan Beach which is about 140 miles round trip. We thought we could make it on one charge but by the time we got to Palmdale, the charge meter said we had 1/4 battery life left so we charged the car at a nearby Level 2 charging station which brought us back up to half battery and we were able to get home driving 55 miles per hour the whole way home which was mostly downhill. We had 5 miles left on the GOM when we got home. If in fact our battery has degraded by 20% lets say, can we get it replaced? How much would that cost and is that covered under Toyota's warranty?

Thanks,
Nathan


Top
 Profile  
 
 Post subject: Re: All Posts about the Distance To Empty "GOM" Range Meter
PostPosted: Thu Mar 17, 2016 6:52 pm 
Offline

Joined: Thu Dec 27, 2012 10:55 pm
Posts: 584
Nathan Cowan wrote:
Can I disconnect the 12-volt battery cables while the car is charging?

You probably can , but you shouldn't ;-)
Quote:
Or should I fully charge the car and then disconnect the battery?

That is what you should do!

Quote:
Also, it looks like we are getting about 110-115 miles on a full charge in extended mode. My parents live in Palmdale, CA and we live in Manhattan Beach which is about 140 miles round trip. We thought we could make it on one charge but by the time we got to Palmdale, the charge meter said we had 1/4 battery life left so we charged the car at a nearby Level 2 charging station which brought us back up to half battery and we were able to get home driving 55 miles per hour the whole way home which was mostly downhill. We had 5 miles left on the GOM when we got home. If in fact our battery has degraded by 20% lets say, can we get it replaced? How much would that cost and is that covered under Toyota's warranty?


Afaik, toyota does not guarantee anything regarding battery loss in it's warranty.
Do the test and see how much your battery pack really lost.

_________________
OpenEvse wifi controlled L1/L2 charging
2 x GEM EV
past ev's: 3 yr leaf 30k, 3yr rav4ev 34k, 3yr rav4ev 25k


Top
 Profile  
 
 Post subject: Re: All Posts about the Distance To Empty "GOM" Range Meter
PostPosted: Thu Mar 17, 2016 8:40 pm 
Offline

Joined: Thu Jan 17, 2013 11:13 pm
Posts: 1571
Location: Los Altos, CA
Nathan Cowan wrote:
Hi Tony,

Can I disconnect the 12-volt battery cables while the car is charging? Or should I fully charge the car and then disconnect the battery?

Also, it looks like we are getting about 110-115 miles on a full charge in extended mode. My parents live in Palmdale, CA and we live in Manhattan Beach which is about 140 miles round trip. We thought we could make it on one charge but by the time we got to Palmdale, the charge meter said we had 1/4 battery life left so we charged the car at a nearby Level 2 charging station which brought us back up to half battery and we were able to get home driving 55 miles per hour the whole way home which was mostly downhill. We had 5 miles left on the GOM when we got home. If in fact our battery has degraded by 20% lets say, can we get it replaced? How much would that cost and is that covered under Toyota's warranty?

Thanks,
Nathan
Traction battery degradation is not covered by the warranty. From the Warranty Guide:

Image

_________________
2012 Shoreline Blue #1462 w/JdeMO | 4.32kW Motech/Enphase PV Solar | Leviton EVB40 40A & Jesla Home Charging | 2015 Limestone Gray e-Golf LE


Last edited by miimura on Fri Jul 14, 2017 7:53 pm, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: Extended Charging not finished
PostPosted: Wed Apr 13, 2016 4:19 am 
Offline

Joined: Wed Apr 13, 2016 3:40 am
Posts: 3
so the range is 122...that's okay too on extended range? when it was new, the max was 140


Top
 Profile  
 
 Post subject: Re: Extended Charging not finished
PostPosted: Wed Apr 13, 2016 5:53 am 
Offline

Joined: Mon Feb 24, 2014 8:51 pm
Posts: 522
What is the range in regular mode? Extended is maybe 10% max extra. I believe Tony has stated as the battery degrades the extended charge actually shrinks disproportionately making you think normal is doing better than it really is. And of course the DTE meter can fluctuate significantly.

Do an extended range charge once a week and see if 122 is consistent.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 212 posts ]  Go to page Previous  1 ... 13, 14, 15, 16, 17, 18, 19 ... 22  Next

All times are UTC [ DST ]


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
© Toyota Rav4 EV Forum - part of the MyElectricCarForums.com Group