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 > My Amazing 12-year old battery...

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Yosemite Sam1

Under the pines.

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Posted: 01/16/20 01:12pm Link  |  Quote  |  Print  |  Notify Moderator

wilber1 wrote:

I seem to get about seven years out of my truck batteries. The voltage may look good but a load test can tell a different story.


If I may, what's a load test and how do you do it?

Would that indicate if the battery is dying or about to be dead?

Yosemite Sam1

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Posted: 01/16/20 01:14pm Link  |  Quote  |  Print  |  Notify Moderator

GaryUT wrote:

The battery in our truck was still going strong when I replaced it at 9 years.

Since we boondock in the middle of nowhere, usually out of cell range, I didn't want to chance it any longer.


My thoughts exactly -- that's why I want to pre-empt it unless I'm throwing good money when my battery still have some kick left on it.

wilber1

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Posted: 01/16/20 01:33pm Link  |  Quote  |  Print  |  Notify Moderator

Yosemite Sam1 wrote:

wilber1 wrote:

I seem to get about seven years out of my truck batteries. The voltage may look good but a load test can tell a different story.


If I may, what's a load test and how do you do it?

Would that indicate if the battery is dying or about to be dead?


Yes it would.

You need a load tester. It puts a load on the battery for several seconds and measures the voltage drop under load. I bought one at Harbor Freight on sale a few years ago. Less than 30 bucks if I remember right. I know, Harbor Freight but it's good enough for the amount I use it. At least it should tell me if I need to get a battery checked with a good quality tester.

The dealer does a load test on our Audi battery every time it goes in for service. Six years and still good but it is located under the cargo compartment floor where it isn't exposed to weather or engine heat.


"Never trust a man who has not a single redeeming vice" WSC

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RoyJ

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Posted: 01/16/20 08:05pm Link  |  Quote  |  Print  |  Notify Moderator

There're also battery testers that measure the inductance/resistance of the lead cells, essentially a modern version of the carbon pile load tester.

One of the quickest ways a battery dies is sulphation - leaving it in a less than full state of charge. Unlike lithium ions, lead acids LOVE to be kept at 100% charge. I have 14+ batteries between my vehicles, toys, equipment, etc. All except my daily drivers sit on a tender at 13.0 - 13.4v

mkirsch

Rochester, NY

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Posted: 01/17/20 07:43am Link  |  Quote  |  Print  |  Notify Moderator

WHY was the battery dead in the first place?

Did you leave the headlights on?

Did you not drive the truck for several months?

Was it fine the night before, and dead the next morning? If this is the case, the battery is shot and needs to be replaced immediately. It has failed and will no longer hold a charge for long.


Putting 10-ply tires on half ton trucks since aught-four.

twodownzero

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Posted: 01/17/20 08:21am Link  |  Quote  |  Print  |  Notify Moderator

I replaced the batteries in my 2005 Ram for the first time in May of 2018. I took delivery of the truck in March 2005. Is 13+ years a good run or what?

Cummins12V98

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Posted: 01/17/20 08:45am Link  |  Quote  |  Print  |  Notify Moderator

twodownzero wrote:

I replaced the batteries in my 2005 Ram for the first time in May of 2018. I took delivery of the truck in March 2005. Is 13+ years a good run or what?


Not the case any longer! I replaced mine on my 15 RAM at 4.5 years. Too many die at 4-5 years so it made sense to just get new ones when "I" wanted to.

With all the electronics weird things happen when the batteries are not 100% on the newer trucks.


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Yosemite Sam1

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Posted: 01/18/20 11:44am Link  |  Quote  |  Print  |  Notify Moderator

mkirsch wrote:

WHY was the battery dead in the first place?

Did you leave the headlights on?

Did you not drive the truck for several months?

Was it fine the night before, and dead the next morning? If this is the case, the battery is shot and needs to be replaced immediately. It has failed and will no longer hold a charge for long.


It must be that we've not ran the engine since we hibernated from camping for the winter.

After the re-charge, I was able to restart the engine, turn on the lights, radio, etc. and rand the whole gamut of stress tests, headlights while engine is off.

The voltage indeed drop and I re-charge the battery again and it's holding a steady voltage after that that experts say is an indication that battery is still good.

Thanks everyone for the input.

philh

Belleville MI

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Posted: 01/18/20 06:20pm Link  |  Quote  |  Print  |  Notify Moderator

My mom had a battery that was about 10 years old. She had AAA and told them to bring a battery out when they came to start her car. Oh no, we'll get your van started. She said no bring a battery, this one has failed.

Long story short, they came out, discovered the battery post had come off the battery, which she already new [emoticon]

WTP-GC

FL

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Posted: 01/18/20 07:19pm Link  |  Quote  |  Print  |  Notify Moderator

Cummins12V98 wrote:

twodownzero wrote:

I replaced the batteries in my 2005 Ram for the first time in May of 2018. I took delivery of the truck in March 2005. Is 13+ years a good run or what?


Not the case any longer! I replaced mine on my 15 RAM at 4.5 years. Too many die at 4-5 years so it made sense to just get new ones when "I" wanted to.

With all the electronics weird things happen when the batteries are not 100% on the newer trucks.

I replaced the batteries in my 2014 RAM in 2019 as well.
My old 7.3L PS Ford batteries lasted 10 years before replacement. They were branded “Motorcraft” so I drove to the Ford dealership and got new ones...for less than what the more common brands cost at the parts stores.


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