Battery Specs

[PGHMAN]

Morning guys. Need some advice on my ETX 16L battery specs. I recently took the battery to Advance Auto for a load test (was off the Tender for 5 days) the counter person indicated that the CCA were 373 (opposed to the stated CCA of 325) voltage 12.49 and that the battery was defective. I have monitored the battery the past several weeks and note the following:
After 1 hour off the Battery Tender Junior the voltage reads 12.71
Two to three days voltage reads 12.62
After four days up through seven plus pretty steady in the 12.56 range
I know batteries are inexpensive and will replace if necessary but wanted to see if anyone could confirm based on your findings.
Thanks.

 

[vettepilot_6]

highly doubtful in my opinion.....batteries can loose a small percentage of voltage daily...I used to load test batteries when I had the shop and any battery that was above its specified CCA with good voltage was a good battery...

 

[Luv2Camp]

12.6 while you have no load on it is considered a fully charged battery. I would think you are fine.

 

[vettepilot_6]

:agree: with above post..

 

[PGHMAN]

Thanks guys. I was skeptical when the AA person immediately mentioned defective based on CCA being higher than the specified 325 CAA. I viewed it as a good thing . Any idea on how long a good battery maintains in the 12.6ish range?

 

[PGHMAN]

To add, the person asked how often I ran the ski and I indicated that it was winterized and the battery was on a maintainer. He commented that I need to run the ski every week. I chuckled.

 

[Luv2Camp]

May want to bring it to another auto parts store or invest in a load tester. The fact that it is holding around 12.6, I would say it is not "defective" Now if it cannot pass the load test, the battery is needing to be replaced. As we use these in warm weather only, you should be able to squeeze more life out of a battery because you are not dealing with the need for extra amps for cold weather starts. If it starts every time with no issues and holds around 12.6, not sure I Would put too much thought into it. You could ground remove your plugs and ground them to the factory ground attachment points and cycle the starter a bunch of times (with time in between so you do not overheat the starter) Attach the plugs again and see if it starts without any slow cranking. If no issues, I would not replace.

 

[manolocross]

Get it load tested... No need to strain your starter. They are more fragile than you think. Or you can buy a load tester at Harbor Freight.


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[PGHMAN]

Good tips. Thanks for the help.