Battery light stays on. After having my doors open and hood up while cleaning.
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Drove truck few mile light stayed on. Started it to drive to mechanic, light went out as expected. Following starts Light stays on truck starts and runs fine. Mechanic checked both batteries, claims they are good. They are Optima red top and about 4 years old. Notice voltage meter in dash seems slow to rise to 14V.
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did mechanic check alternator?also did he unhook the batteries while testing,you can't check the batteries while they are both hooked up,will give you false reading.
He did not check the alternator, that I know of, but did disconnect the batteries.
he should have checked the alternator.take it to autozone and get them to check it,it's free.
Thanks, I will