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Car battery reading 15 volts

WebNov 23, 2004 · If the 12.21-12.28 V is a dead battery. Junk it. 12.6 isn't all that high so it may not be fully charged. In a car it will flucuate. Your alternator can run up to 15 volts so no it won't damage the alternator. The alternator charges the battery at a constant voltage usually around 14.5V which is how it should be done. Feb 25, 2016 ·

Car battery at 10v, then shows 14,5v while car running after boost ...

WebFeb 8, 2013 · Rep: 732.9k. 948. 847. 2.3k. Posted: Feb 8, 2013. Options. Oluseun, with the engine running the gauge should measure the output of your alternator. The low voltage may be indicative of issues with your alternator. If you have one of those that shows the voltage without the engine running, then check your gauge for a bad resistor on the … WebSep 5, 2024 · Final possibility (I think), if the battery is reading 12.5v while running with minimal accessories then it could be a bad/weak alternator. Generally voltage at the … blackwell primary school east grinstead https://cathleennaughtonassoc.com

My 6yr-old battery is reading at 12.21-12.28 V - VW Vortex

WebFeb 14, 2024 · Today I measured the battery: After being parked overnight: 10V When car running after boost: 14.5V When car turned off after less than 5 minutes running: 12,5V 2 minutes later, back to 10V again. I did not understand how it could go from 10V to 12.5V after less than 5 min charging by alternator. WebThere are two things that you are looking for. The charging voltage should be between 13.9v to 14.4v. Also the voltage at the battery and the voltage at the alternator should be within 0.5v of each other. If the voltage at the battery and alternator don't match. For example the battery reads 12v and alternator reads 14v. WebJan 19, 2024 · Jan 18, 2024. #12. AGM for automotive use will read higher than traditional lead acid. My Oddesey battery (AGM) for the Journey used to read 12.8ish volts fully charged using their brand of charger. Make sure your battery tender is rated for AGM, if volts exceed 14.7 it can damage the battery. fox new tv show monarch

How Many Volts Are In A Car Battery? Advance Auto Parts

Category:How Many Volts Is A Car Battery? What’s The Ideal Range? - CAR …

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Car battery reading 15 volts

How to Check the Voltage of a Car Battery

WebJan 2, 2014 · The voltage recovers to one degree or another once the load is removed. Note that a "12 V" battery voltage of 10.5 V under load is considered fully discharged. A 5 V reading means a very weak battery, a very cold battery, a very heavy load, or some combination of these conditions. Nov 30, 2015 ·

Car battery reading 15 volts

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WebJun 25, 2024 · Note: Alternators usually come equipped with a way to bypass the regulator in order to measure the output voltage with full field applied. This “full field test” is for test purposes only, but if your alternator was set up in that mode it might put out 16 volts. See page 4 in the link above. WebJan 22, 2011 · 2,540 Posts. Discussion Starter · #16 · Nov 20, 2010 (Edited) Update: So I checked the voltage this AM before starting the car and it was a flat 12.0V. It did not change with the radio off or on. The "15.1V battery OK" is rather new. I think it has typically been in the 14s prior to the last couple of weeks.

WebJan 25, 2016 · Yesterday my car didn't start, battery low, 15 degrees outside. Called AAA and they checked the charging system and didn't see a problem but suggested the … WebJun 20, 2024 · The battery gauges on most vehicles I have owned stays around 13 to 14 volts and doesn't move much unless something that consumes a lot of power is turned on. Mine does this with nothing additional running on the truck other than the radio and a/c. This morning the needle was about 1 volt below (13 volts) the middle mark (14 volts) on the …

WebFeb 23, 2024 · Test the battery voltage. Turn off the ignition and any accessories like lights or the radio in the vehicle. If your multimeter is not autoranging, set it to 20V DC. Place … WebSep 23, 2024 · September 23, 2024. Tom Harbid. Fully charged car batteries usually measure at around 12.6 volts or above, with some instances of your car battery …

WebMay 26, 2024 · After you read the voltmeter when the car’s ignition is turned partially, now you need to look at the voltmeter while your car is running. While driving the car on the …

WebDec 28, 2024 · A fully charged car battery voltage (without being plugged into an external device) ranges from 13.7 to 14.7 volts. It will drop to 12.4 volts when the charge is 75% and 12 volts when it is at 25%. A fully … fox new weather forecastWebOct 11, 2024 · I found a brand new oem alternator (not refurbished) on Amazon for 160.00 plus 27.00 shipping. I'm going to replace it and see is this lowers the charging voltage or … fox new tv shows 2023WebSep 25, 2024 · Check to see the reading and if it is over 12.9 volts, your battery may have excessive voltage. 12.6 to 12.8 is the ideal voltage level for your battery. ... These have been reasons why your car battery … fox newwholehog sportWebDec 28, 2024 · A fully charged car battery voltage (without being plugged into an external device) ranges from 13.7 to 14.7 volts. It will drop to 12.4 volts when the charge is 75% … fox new videosWebThis will tell you the car’s voltage. It should be sitting between 12.6 and 12.8, though it can be a little bit lower depending on the weather. If the voltage is above 12.8, you should … fox new tv shows 2018WebUsing your multimeter, you want to measure DC voltage (this is indicated with a solid line and a dashed line above a letter V). Set the dial to 20. This will allow you to accurately measure 0-20 volts. Hold the red probe to … fox new weather programWebDec 23, 2009 · 15 volts,is a lot,but not to much to worry about,just make sure the connections on the battery are good,and have the battery checked real good,to make … fox new web page