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kittysmitty
Member
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# Posted: 25 Apr 2024 11:33
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I'm doing some load testing on some batteries. I have noticed that AGM's seem to hold the voltage and drop slowly, but at around 50% they drop like a rock. FLA's just the opposite. Voltage seems to drop quicker early but once they hit 50% it slows down. Anyone have any comments or observations?
And please don't comment on how much a battery should be discharged as this is just for testing purposes.
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paulz
Member
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# Posted: 25 Apr 2024 13:45
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I may have seen what you describe. Are you actually load testing? I have seen low voltage FLAs that will still lake a load, where AGMs that still read decent voltage won’t do much load. No idea why.
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gcrank1
Member
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# Posted: 25 Apr 2024 17:21
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Ive had both agm's and la that hold a decent voltage reading but don't have much for usable amp hours.
To me it is the ah's that are important.
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Aarya
Member
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# Posted: 3 May 2024 03:37
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Your observations regarding AGM and FLA batteries are insightful. AGM batteries tend to maintain voltage steadily before experiencing a sudden drop around 50% capacity, while FLA batteries exhibit a quicker initial voltage decline, followed by a slower descent after hitting 50% capacity. These differences likely stem from the distinct chemical compositions and internal structures of each battery type. Your focus on testing without considering optimal discharge levels is duly noted. It would be intriguing to delve deeper into the mechanisms behind these voltage behaviors to optimize battery performance for various applications.
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gcrank1
Member
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# Posted: 3 May 2024 07:53
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Go for it Professor!
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Nobadays
Member
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# Posted: 3 May 2024 09:09
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I see canned meat coming....
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