Is this noraml for a battery?
I charge house battery up to around 12.75 Has a battery disconnect switch (installed on neg side) in about two weeks later, I test with same volt meter and reading is 12.18 volts. Is this normal...
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rjxj wrote:path1 wrote:
Op here.....Thanks for replies. Elec is my worst subject. I test with volt meter long after charging.
What would be the next test I should do? My cheap battery load tester, stays in the green when testing the next day.
Battery is 2 years old. It has been ran down some but not completely drained. Like maybe around 12.0
Is it possible or likely because my battery disconnect is on neg side that something is draining battery. Maybe put disconnect on positive side?
Thanks again
If you have a wet cell battery there is only one way to know what it's condition is and that is by using a hydrometer. If the battery has problems it may charge up to a high enough voltage yet the specific gravity could still be low. Checking the SG will also show differences between cells and reveal weak or dead cells. You can have a battery that is in poor condition still show a high enough voltage yet not hold it for very long and not put out for very long. It's all in the SG. Without knowing that you are just guessing.
I've got one of those hydrometers, going to find it and see what is says.
