Questions tagged [voltage]
The voltage tag has no usage guidance.
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Faulty Motorcycle Regulator?
I am on my second 12v motorcycle battery in a couple of weeks. Will a faulty regulator, ie too higher volts, cause this?
Also I have upgraded my ct110 to a 160cc, all works well for a few days, then ...
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Battery Voltage low when car is running. Should I be concerned?
Car: 2010 Mazda 3 GT 2.5L Manual 160,000KMs
I purchased the car 3 months ago not knowing the history of the battery, I wanted to test it.
I measured the voltage across my battery using a voltmeter ...
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02 FORESTER VOLTAGE
Ran the codes on 02 Forester. We came up with P0328 Knock Sensor. I am putting on new fuel filter and plug wires. Does anyone know what voltage I should be pulling off of the knock sensor. Right ...
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Safe voltages for jump starting
For various reasons, I keep several very large four cell lithium-polymer batteries in my vehicle. Each of these batteries is rated for over 100 amps of constant current, with 10 second burst ratings ...
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Battery at 13.7 volts disconnected, 14.7 with engine idle or revving, while various small intermittent problems suggest voltage is low?
I've had a few problems after driving my longsuffering 1997 RAV4 on a bad dirt road including a shallow river crossing, and I think they're related and something to do with the electrics, but I can't ...
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Battery Open circuit voltage
I purchased a battery 4 weeks ago and have had trouble starting the car. I think it is the starter, however, I have had the battery on the charger for 3+ days and it is reading 13.1 volts open ...
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ECM voltage, spark spike
When the car was idling in the garage this morning (hooked up to HP Tuners), I saw a spike on the "Spark" graph at the same time as the car stumbled. "Control Module Voltage" also went from > 14 down ...
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Can the amount of ampere hours in a car battery be determined by it's output in volts?
Let say an average car battery has a 48 amp-hour capacity. Is it possible to determine how many ampere hours are left in a battery if the volts are known? What about if they are lower (e.g., 8 V) than ...
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Battery resting voltage drop after trying to start
My girlfriend's 09 Camry is not starting unless it gets jumped. She took the car to Autozone where they tested the battery and alternator and said both were fine. I measured the voltage across battery ...
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Low voltage when using remote starter
Recently, I have been unable to remote start my 2003 Honda Accord Coupe. I brought the car to an auto-zone, and they told me (after hooking my battery up to a voltage tester) that I had "low voltage" ...
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How to connect pc speaker with 12v output in car without noise and voltage issues
I am having a pc speaker which i need to connect with 12v output in my car.
I have to exclude my adaptor section and directly connect the power from the 12v supply to speaker power input.
Car:
...
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12 volt circuit Voltmeter shows drop
My voltmeter shows 12.46 volts across the terminals of the battery when ignition is off and on.
As soon as the car starts, the voltmeter reads 1. This reading would normally be seen when measuring ...
user127467
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Do month-year coloured dots on batteries signify install-by expiration date?
As per How do you know if the replacement battery is a good one?, it may be the case that I've purchased a battery that may not be at its best.
I got it from a VW dealer installed on 2016-10-01; it ...
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How do you know if the replacement battery is a good one?
How do you know if the replacement 12V battery is a good one?
The 000 915 105 DE one I got for my 2008 Jetta 2.5L SE appears to have the "9/16" sticker on it, as well as "3216" inscription (which may ...
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Bosch MAP Sensor Voltage issue
For those who think: TL;DR long story short:
I want to measure the voltage output at certain temperature but do not get a signal.
Details:
I have a BOSCH MAP Sensor here (0281006108), it has 4 Pins:...
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Start Engine If Battery Drops Below "X" Volts
I use a lot of devices in my work vehicle that are typically running when the engine is off. I was doing some reading into ways to maintain battery voltage and I read that there was a device that ...
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Is alternator/voltage-regulator supposed to power everything always at 13.5V+ at idle?
As a follow-up from how fast does the alternator charge the battery?, how powerful are alternators supposed to be at idle?
Specifically, if I have a lot of OEM accessories in my 2008 Jetta 2.5L SE, ...
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Why does my car's switched 12V drop to 5V when I add an accessory?
Disclaimer: I have very little electrical knowledge.
I have wired electronics (radar detectors, dash cameras, GPS units, etc.) to about a dozen vehicles in the past, but have ran into a strange issue ...
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