Just with the vehicle on it was 14.2. At lunch I tested it running, lights on (and roof lights), radio cranked, hazards

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Jan 21, 2020
12:59:28pm

Ragnar Danneskjold Viral Blogger, Thought Leader

on, and my air compressor on. It registered 13.4V.

So, with everything running, it should still be charging.

This message has been modified

Originally posted on Jan 21, 2020 at 12:59:28pm

Message modified by Ragnar Danneskjold on Jan 21, 2020 at 1:00:25pm

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Ragnar Danneskjold

Previous username: CougarSkye
Bio page: Ragnar Danneskjold
Joined: Sep 2, 2011
Last login: May 7, 2024
Total posts: 70,738 (30,779 FO)

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Messages

Author

Time

Car battery q - I had a ton of the corrosion gunk on the negative terminal a few weeks ago. I cleaned it all off,

Ragnar Danneskjold Viral Blogger, Thought Leader

1/21/20 9:58am

That would be my conclusion as well. How old is the battery - that is supposed to be a good one.

kccougar

1/21/20 10:00am

5 years. I wasn't excited to buy an Optima, but it was the best available at the time. I'm ordering an Odyssey next.

Ragnar Danneskjold

1/21/20 10:00am

5 years is decent for a battery. I generally consider 7 years to be great. Time to buy the Odyssey.

kccougar

1/21/20 10:04am

Do you have to get an optima for a replacement?

permiso

1/21/20 10:00am

Nope. And I won't.

Ragnar Danneskjold

1/21/20 10:01am

Below 13v with the car off is indicative of a dying battery.

Corn Pop

1/21/20 10:03am

Thanks. That's what I'm thinking. It's good to get a sanity check.

Ragnar Danneskjold

1/21/20 10:05am

It's actually lower than that. 12.6 volts is considered normal voltage for a

BYUMizzou

1/21/20 10:07am

Yeah, the notes I had were (spec) resting: 12.6, running: 13.7-14.7

Ragnar Danneskjold

1/21/20 10:09am

Interesting. I guess the few times I’ve tested mine have generally been

Corn Pop

1/21/20 10:20am

Here's what I would do before I dropped $300. It sounds like the battery is

Dread Pirate Westley

1/21/20 10:10am

I did the deep clean already (like, REALLY clean). I thought about doing it again w/ white lithium grease, but @ 5 yrs,

Ragnar Danneskjold

1/21/20 10:14am

I agree with this. Even though your battery is a "sealed" battery, it has a

BYUMizzou

1/21/20 10:23am

If he has 14V measured at the battery when the vehicle is running, and corrosion is on the negative terminal

Bert609

1/21/20 10:34am

If I throw on the Odyssey and get corrosion (then it's the alternator), the Odyssey wouldn't necessarily be damaged,

Ragnar Danneskjold

1/21/20 10:40am

I wouldn't think so. So you can start with your Odyssey first. Assuming your terminal isn't corroded under

Bert609

1/21/20 10:56am

Just did my alternator replacement on an Odyssey, not bad (see video)

permiso

1/21/20 11:23am

$300 for a battery? Where do you shop?

cheezedawg

1/21/20 10:24am

There are specialty batteries for vehicles that use a lot of

BYUMizzou

1/21/20 10:29am

Yeah I had an optima on my 97 Wrangler

permiso

1/21/20 11:25am

RE: There are specialty batteries for vehicles that use a lot of

cheezedawg

1/21/20 2:36pm

My car gets a lot of shock and vibration, so I get as durable as possible.

Ragnar Danneskjold

1/21/20 10:32am

Also check the cable to see if corrosion is down the line as well.

Troy McClure

1/21/20 10:12am

Good idea. Will do.

Ragnar Danneskjold

1/21/20 10:17am

If you have a 5-yr-old battery, you obviously don't live in Arizona ... home

IBe_WhyYou

1/21/20 10:31am

So true, Costco has already given me a new battery since we moved here 4 yrs ago

permiso

1/21/20 11:26am

Go into O'Reilly's and ask for a battery test. They will hook it up...

bluecheese

1/21/20 11:27am

I kind of did my own with a multimeter.

Ragnar Danneskjold

1/21/20 12:19pm

By the way, Odyclub members (forum for Odyssey owners) tend to agree that

permiso

1/21/20 12:26pm

He's talking about an Odyssey battery, not a Honda Odyssey.

kccougar

1/21/20 12:53pm

Yup. Odyssey is a battery brand.

Ragnar Danneskjold

1/21/20 12:57pm

Oops, thought you were talking about Optima batteries for your Odyssey lol

permiso

1/21/20 1:50pm

How did you load test it with your multimeter?

John Doe

1/21/20 12:26pm

Just with the vehicle on it was 14.2. At lunch I tested it running, lights on (and roof lights), radio cranked, hazards

Ragnar Danneskjold

1/21/20 12:59pm

1) That's just testing alternator output, not the diodes. 2) You should probably have the battery load-tested also.

John Doe

1/21/20 1:56pm

Does that rule out the alternator though?

Ragnar Danneskjold

1/21/20 2:34pm

I agree with your assessment. You shouldn't be getting corrosion buildup on a sealed battery.

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