Is my alternator overcharging?
October 10th, 2023, 2:06 PM
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Is my alternator overcharging?
Hello all-
My 2016 Silverado would not start the other day. It started fine and drove fine for ~20 mins after a jump start, so I replaced the (original) battery today, and it started right up. However, I went to test the voltage on the battery, with the engine running, and it came in at 14.9 at first. After a few minutes of the engine running, I did it again and it bounced around between 14.78-14.81, so call it 14.8 or so
I hope I'm just overthinking this, but anyone care to opine if this is too high in their opinion? I think that 14.6 would be considered normal right? My concern is if the alternator is overcharging the battery, and if that's the case, could that be slowly killing the battery?
My 2016 Silverado would not start the other day. It started fine and drove fine for ~20 mins after a jump start, so I replaced the (original) battery today, and it started right up. However, I went to test the voltage on the battery, with the engine running, and it came in at 14.9 at first. After a few minutes of the engine running, I did it again and it bounced around between 14.78-14.81, so call it 14.8 or so
I hope I'm just overthinking this, but anyone care to opine if this is too high in their opinion? I think that 14.6 would be considered normal right? My concern is if the alternator is overcharging the battery, and if that's the case, could that be slowly killing the battery?
October 10th, 2023, 2:49 PM
#2
alternators do not output steady voltage anymore. It's regulated by the computer depending on conditions. All those voltages are within range.
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Rednucleus (October 10th, 2023)
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