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07-13-2014, 10:08 PM | #1 |
Winterizing
Drives: 2010 Toyota Yaris Hatchback Join Date: Oct 2011
Location: Pennsylvania
Posts: 157
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Checking Battery
I haven't had any problems with my battery but a garage checked my battery without me asking them to and they told me my battery was "dead" as it "was putting out 100 A when it needed to put out 500" ... I'm pretty sure that is what he said. I decided to say no to whatever he was trying to sell me and came home and took a look.
I watched this 2 min and 27 second video on youtube about checking your battery... http://www.youtube.com/watch?v=tsJUuLu1cw0 ... the guy in the video says if your battery goes below 9.6 V while starting it, that it is a bad battery. My battery was at 12.6 V before starting the car and at 8.4 V while starting it. So according to this video my battery is bad. The car had been off all day, but I started it a few times for about 30 seconds at a time about 20 minutes prior to this test. The dome light was probably on while my dad was starting the car. No other lights were on besides the dome light while occasionally opening the door throughout the day, and the high beams for about 10 seconds twenty minute before the test. Also, I checked the battery water and it is at at the correct level. Do you think my battery needs replaced and why? Thank you.
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33.7 mpg in PA |
07-14-2014, 05:08 AM | #2 |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
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The battery dropping below 9 volts while cranking says that you do not have long before it starts to not start when cranking. Overtime the battery's lead plates get coated with sulfate, which reduces their surface area and hence the battery's capacity.
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07-14-2014, 11:00 AM | #3 |
Drives: 2015Yaris, Son's car, 10 Prius Join Date: May 2010
Location: Texas
Posts: 182
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stranded
Yes, replace before you are stranded. It will quit at the very most inconvenient time.
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07-14-2014, 11:31 AM | #4 | |
Drives: 06 Polar White 5dr, 13 Soul 4u Join Date: Oct 2008
Location: Georgetown, Ontario, Canada
Posts: 5,762
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Quote:
My experience http://www.yarisworld.com/forums/showthread.php?t=43255 My battery suddenly died while on vacation last summer deep in the heart of french speaking New Brunswick and I don't speak a lick of french.
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07-14-2014, 12:31 PM | #5 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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s it the original battery?
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Synthetic Oil: Its All In Your Head |
07-14-2014, 12:38 PM | #6 |
Winterizing
Drives: 2010 Toyota Yaris Hatchback Join Date: Oct 2011
Location: Pennsylvania
Posts: 157
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I bet it is. I bought the car with 50K miles and now it has 100K miles. I never changed it.
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33.7 mpg in PA |
07-14-2014, 12:44 PM | #7 |
Winterizing
Drives: 2010 Toyota Yaris Hatchback Join Date: Oct 2011
Location: Pennsylvania
Posts: 157
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Thanks everyone. I'll replace it. My dad will be so disappointed in me ... lol.
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33.7 mpg in PA |
07-14-2014, 02:10 PM | #8 |
Drives: Yaris HB Join Date: Jul 2007
Location: Central Alabama, GOD BLESS AMERICA
Posts: 755
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On this same subject, I often leave my car for 4-6 days between being away for work (airport parking lot etc), and I've twice noticed that after starting and beginning to drive, the red battery symbol warning light is on for the first few minutes, sometimes very dim and barely illuminated.
I assume this indicates a low voltage. So... standby drain too high? bad alternator, not strong enough to recharge it? bad battery? (about 3-4 years old, replaced). |
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