You are here: PriusChat Forums


Go Back   PriusChat Forums > Gen II (2004-2009) Toyota Prius Forums > Gen II Prius Care, Maintenance and Troubleshooting
Connect with Facebook

This is a discussion on Do I need a new 12v Battery? within the Gen II Prius Care, Maintenance and Troubleshooting forums, part of the Gen II (2004-2009) Toyota Prius Forums category; I had an oil change and inspection done at a local (Toyota trained) garage and since then it has acted ...


Do I need a new 12v Battery?

Reply
 
LinkBack Thread Tools
Old 10-27-2008, 04:17 PM   #1
newts
Member
 
newts's Avatar
 
Join Date: Jan 2004
Location: Newt Hampshire
Posts: 74
My Car: 2004 Prius
Model:
Package: #9
Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0
Default Do I need a new 12v Battery?

I had an oil change and inspection done at a local (Toyota trained) garage and since then it has acted strange. Not sure exactly but it seems the red key blinks more before it is started and the car beeps as soon as I open the door but before anything is started.

Around the same time I noticed that closing all the windows at once really slowed the motors down (engine off). Also I get the red bang-triangle ("of death") for a second when I start but then it goes out and the car is fine.

I didn't use the car this weekend (the best gas mileage is using a bike and not gas at all...) and the car wouldn't start. I got the dashboard fireworks and that was about it.

I put the charger on the car and it started fine. The gas gauge was one bar for a few minutes until it noticed the full tank of gas again.

So it appears the battery is bad and this is an 04 so maybe it is used up? The only reason I want to question it is if there is something that could be "on" or set that is draining the battery and not just a weak battery. As far as I can see all the lights are off. Anything else?

jv
__________________
2004 White #9
Founder: Hells Amperes
newts is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 04:37 PM   #2
qbee42
Senior Member
 
qbee42's Avatar
 
Join Date: Mar 2006
Location: Northern Michigan
Posts: 10,486
My Car: 2006 Prius
Model:
Package: #7
Thanks: 95
Thanked 392 Times in 290 Posts
Friends: 10
Default Re: Do I need a new 12v Battery?

It sure sounds like it's time for a new battery.

Tom
qbee42 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 05:40 PM   #3
Rokeby
Member
 
Rokeby's Avatar
 
Join Date: Jan 2008
Location: Ballamer, Merlin
Posts: 1,523
My Car: 2008 Prius
Model:
Package: #6 Touring
Thanks: 96
Thanked 74 Times in 54 Posts
Friends: 2
Default Re: Do I need a new 12v Battery?

The weirdishness you're seeing has preceded 12V battery failure for
a number of folks posting here.

This coupled with the frequent recommendation that the OEM 12V battery be
replaced every 4 years strongly suggests that it's time for a new battery.
Rokeby is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 05:49 PM   #4
efusco
Troll Slayer
 
efusco's Avatar
 
Join Date: Nov 2003
Location: Nixa, MO
Posts: 17,247
My Car: 2004 Prius
Model:
Package: #9
Thanks: 50
Thanked 260 Times in 156 Posts
Friends: 37
Default Re: Do I need a new 12v Battery?

+1 to both above
efusco is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 05:58 PM   #5
newts
Member
 
newts's Avatar
 
Join Date: Jan 2004
Location: Newt Hampshire
Posts: 74
My Car: 2004 Prius
Model:
Package: #9
Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0
Default Re: Do I need a new 12v Battery?

Great, that sells it for me. Now to call for some quotes and do the buy/make decision if I do it or have a mechanic. If I do it I can try to keep my memory and settings intact. If they do it they own the problem if they f' it up.

Thanks.
newts is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 06:25 PM   #6
firepa63
Senior Citizen
 
Join Date: Jul 2005
Location: SE Pennsylvania
Posts: 930
My Car: 2009 Prius
Model:
Package: #5
Thanks: 0
Thanked 43 Times in 39 Posts
Friends: 0
Default Re: Do I need a new 12v Battery?

Once the 12v battery is disconnected you will lose your settings, such as radio presets, AC/Heat settings, etc. It's no big deal to reset them. Just make sure you install the proper battery with correct venting.
firepa63 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 08:19 PM   #7
rigormortis
Senior Member
 
Join Date: Feb 2007
Location: san jose, ca
Posts: 1,313
My Car: 2007 Prius
Model:
Package: #5 Touring
Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 1
Default Re: Do I need a new 12v Battery?

rigor's canned reply
----------------------
the batteries with the correct venting are going to cost $140 or something?? or more?
before spending that money, how about removing the battery and taking it down to your local dealership or automotive store just to have tested and get a print out. this is free
rigormortis is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 09:45 PM   #8
efusco
Troll Slayer
 
efusco's Avatar
 
Join Date: Nov 2003
Location: Nixa, MO
Posts: 17,247
My Car: 2004 Prius
Model:
Package: #9
Thanks: 50
Thanked 260 Times in 156 Posts
Friends: 37
Default Re: Do I need a new 12v Battery?

Quote:
Originally Posted by firepa63 View Post
Once the 12v battery is disconnected you will lose your settings, such as radio presets, AC/Heat settings, etc. It's no big deal to reset them. Just make sure you install the proper battery with correct venting.
If you connect a 12v source to the terminals under the hood during the change you can preserve all your settings. For some of us it's a little bit of a big deal b/c we're lazy!
efusco is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 09:49 PM   #9
efusco
Troll Slayer
 
efusco's Avatar
 
Join Date: Nov 2003
Location: Nixa, MO
Posts: 17,247
My Car: 2004 Prius
Model:
Package: #9
Thanks: 50
Thanked 260 Times in 156 Posts
Friends: 37
Default Re: Do I need a new 12v Battery?

Quote:
Originally Posted by rigormortis View Post
rigor's canned reply
----------------------
the batteries with the correct venting are going to cost $140 or something?? or more?
before spending that money, how about removing the battery and taking it down to your local dealership or automotive store just to have tested and get a print out. this is free
that's certainly an option...but I'll say just this, he's got an '04, thus it's likely nearly 5 years old. Many of us got just 4 years out of our original 12v so it's highly likely that it's near the end of it's life no matter what the printout says. Add to that that his symptoms are exactly consistant with those of others, myself included, that had a 12v nearly expired, and I say it's a waste of time to bother with taking it out, having it tested, then putting it back in and again going through the process of ordering a replacement. If the print out shows it to be good how often are you going to go through this remove/test/replace thing before actually replacing it...?

For my money I'd just cut bait now knowing I had another 4-5 years in my new battery and not have to worry about the old one dying unexpectedly.
__________________
Evan E. Fusco, MD
"It's a damn poor mind that can only think of one way to spell a word." -Andrew Jackson
Click the image to open in full size.
Click the image to open in full size.
efusco is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 10-27-2008, 10:51 PM   #10
newts
Member
 
newts's Avatar
 
Join Date: Jan 2004
Location: Newt Hampshire
Posts: 74
My Car: 2004 Prius
Model:
Package: #9
Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0
Default Re: Do I need a new 12v Battery?

Quote:
Originally Posted by efusco View Post

For my money I'd just cut bait now knowing I had another 4-5 years in my new battery and not have to worry about the old one dying unexpectedly.
My thinking exactly. Thanks for the help.

jv
newts is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply

Tags
12v battery, triangle
Similar Threads
Thread Thread Starter Forum Replies Last Post
Glide or Battery Charge? Can the battery be charged too much? Courtney Gen II Prius Fuel Economy 34 06-04-2009 08:04 AM
More lead required for Prius battery than a Hummer battery? oceanrhythms Gen II Prius Main Forum 10 06-02-2008 07:46 AM
Why the small battery icon atop the hybrid main battery? sparlin Gen II Prius Audio and Electronics 3 02-07-2008 08:58 AM
Replacing the Prius Auxiliary Battery with a Mazda Miata Battery ? KM_salem Gen II Prius Main Forum 1 12-06-2007 10:21 AM
What's the 4-bar +/- battery symbol above the Hybrid battery meter on the MSD? seakykr Gen II Prius Technical Discussion 6 10-20-2006 03:39 PM


Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 04:17 PM.


Powered by vBulletin®
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2