Battery voltage drops from 12.3V to 11.2V in 5mins
I checked the battery''s voltage, which dropped from 12.3V to 11.2V in 5mins. Is this behavior normal, or should I change the battery? battery; battery-drain; Share. Improve this question. Follow edited Dec 22, 2020 at 16:57. apt45. asked Dec 22, 2020 at 16:51. apt45
Acceptable Battery Voltage drop
What is an acceptable level of battery voltage drop, after sitting for a week, two, three weeks. I started out with 12.75 volts last Sunday after running the car about 30 miles. It has been sitting the the garage for a week with daily voltage checks taken each mornings at about the same time, using the same meter. It has only dropped a couple
Why does my car battery reads 12.5 volts
1. The battery charge is insufficient. If your car battery reads 12.5 volts but won''t start, it''s because it''s probably not charged enough. To check, use a voltmeter to measure
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12-Volt Battery Charging Guide
The Role Of Voltage In Determining Battery Charge State. Voltage measures how strongly the electrons are pushed from the battery. More voltage = more power
Your battery voltage
Today at 8am battery voltage measured with my Fluke is 12.37 A fully charged standard battery is 12.6 - 12.7 fully charged. AGM seems to run 12.7-12.8 (depending on the
12V Battery Low warning
The new battery had an open circuit voltage of 12.5v, so it had been on the shelf for a little while but it would actually take a full charge... And then once full, it would drop to the trickle charge rate of 13.1v: Last edited:
Car battery at 11.8v in the morning and 12.5v after 20 minute
Generally voltage at the battery (after 10-20 min of alternator charging) should be around 14.1~14.5v. If it''s more than 1-2v volts lower, then probably bad alternator function
Low battery warning
After two hours the battery voltage was still 12.74 V, then with ignition 12.24 V, then idling with engine on 14.88 V (without adding gas). I went for about 7 miles, which was about 15 minutes. At that time, the battery
Estimating state of charge from battery
In theory, the at-rest battery voltage depends on the state of charge, as shown in this example graph: In this example, when the SoC is 50%, the at-rest battery voltage is 12.05 V. So, if
Battery Voltage
Battery Voltage. Jump to Latest 7.9K views 11 replies 6 participants last post by JBS Oct 6, 2009. Shytot Discussion starter. 839 posts · Joined 2008 Add to quote; Only show this user #1 · Oct 3, 2009. Went out this morning popped the key in turned it once and the warning bells went off with no sign off the treg starting.
What Voltage is Considered Bad for a Car Battery?
The same is true when measuring battery voltage to determine if a battery has gone bad. Fully-charged, most car batteries will measure at least 12.6 volts (~13.0-13.2V for OPTIMA YELLOWTOPs), but low voltage doesn''t
How to check the charge in your Leisure
A rule of thumb is that a battery reading 12.4 volts is half charged and a battery reading of 12.2 volts is flat, below 12 volts is classed as discharged and the lower the voltage drops is
Brand new lead acid car battery reads only 12.33v. Is it faulty?
It read only 12.33v. With the engine running, the reading is 14.2v (so the alternator works fine). After a 30min drive, the voltage was 12.72v right after I shut off the
Automotive Battery Voltage -What is ur reading?
Battery voltage is 12.56V Battery is two-three years old Is this a a reasonable number? Last edited: Jan 18, 2019. Duffyjr. Joined Jan 13, 2016 Messages 3,488 Location Northeast Nebraska. Jan 18, 2019 #2 Yes for a couple year old battery, my AGM from AAP is three years old and still reads 12.5x. But I just put a new Interstate in my car and
How To Check Battery Voltage?
Can you check battery voltage without multimeter? Yes. You can test you car battery voltage with engine even without the use of a voltmeter. This test is done well during the night where you can see well with your
Car Battery Voltage: What Should It Be? Normal, Minimum Levels
Regularly check the voltage: Measure your car battery voltage with a multimeter. A fully charged battery should read between 12.6 and 12.8 volts. If the voltage
Car battery test says it is Good, but can''t charge above 12.45V
If I disconnect the battery, charge it, wait 12 hours, and check the voltage, it is 12.45V on my Fluke meter, T = 76F. So I brought the battery to AutoZone, and their battery tester showed the battery was Good, but needed a charge. I had AutoZone charge the battery, and the voltage results were the same 12 hours later.
Is my leisure battery ok?
(for the same example, 5 x 5 = 25Ah. For a brand new battery this would be 25% of the capacity, so it should be down to the 75% level. 4. Let the battery settle for a couple of hours 5. Measure the voltage. 6. Use this
EFB battery low voltage reading.
The new AGM battery seems to now have a max voltage of around 12.55v. Even if I have parasitic drain I wouldn''t expect the battery to have lost capacity in 2 weeks. I''ve been using the Noco 5 at least couple of times a week and not let the voltage drop below 12.5v. Just charged it again and it showed fully charged right away.
What Should Car Battery Voltage Be While
In this article, I will discuss what voltage your battery should be at when your car''s running and how to test your battery''s voltage. I will also explain how you can tell if your
What should battery voltage be reading under load?
Re: What should battery voltage be reading under load? More or less around 12.7 VDC is "resting voltage"... Battery below this voltage is discharging (if under load) or less than full charge (if resting). ~13.6 volts is "float charging" (keeping the battery full, but not really actively charging). Around 14.0 to 14.5 volts is actively charging.
AGM Battery
Everything I read says an AGM battery should have a residual voltage of 12.8v ~ 13.2v. Car fires up and runs just fine with an initial charging voltage of 15.2v which drops back to around 14.2v after twenty minutes of driving. A lead acid battery is only 50% charged at 12.25v but there is a bunch of contradictory numbers out there when you
Starting Battery Life?
A fully charged battery will have a voltage reading of no higher than 12.75 to 12.8v Max. So if you measure the voltage and the first reading is around 12.7v and the second is no less than 12.6+v then your battery may not be in too bad a shape, but if the voltage drops off more than a volt, your battery is probably on it''s last legs.
Everything You Need To Know About Car Battery
Following are the possible voltage readings and their meanings: • 12.5V or higher: Your battery has a sufficient charge. • 12.3V: Your battery is charged about 75%. • 11.8V or lower: Your car battery is charged about 25% or less. Similar to a
Using Car Battery Voltage To Check Your Battery Condition
Keeping your car battery in top condition is essential to help avoid a breakdown due to a dead battery. A simple check of the battery voltage will help you determine the battery''s current
Car Battery Has Voltage But No Amps [5
Car Battery Has Voltage But No Amps [5 Easy Fixes] Voltage and amps are two different things. While voltage is a measure of the pressure that allows the electrons to flow in
Battery Voltage?
As I understand it a fully charged 12 volt battery should show a no load voltage of around 12.75 volts, or between 12.7 and 12.8 volts depending on which website you read.
12v battery reads good voltage but No AMPS
My battery voltage reads 12.7 volts stationary but when i try to start the vehicle it does want to turn over I tried it with a new battery that reads 12.5 volts and it starts effortless. How can i fix this problem? tcmichnorth April
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3 Ways to Check for a Bad Battery – Tech Tips & Tricks
5 天之前· A healthy 12-volt battery should maintain a voltage range from 9.6 - 10.5+ volts under the load for 30 seconds straight. We don''t expect you to run the starter for 30 seconds for starting batteries, so if you see the voltage meter
Car Battery Voltage Chart
A car battery voltage chart displays the relationship between a battery''s charge level and its corresponding voltage. A fully charged car battery should measure 12.6 volts or
Brand new lead acid car battery reads only 12.33v. Is it faulty?
Yesterday I purchased a brand new, maintenance-free, 12 volt lead acid car battery. Specs: 47Ah and 450CCA. Before I install it in my car, I measured the voltage with a catIII digital multimeter. It
Battery voltage
The readings you got are not abnormal. The reading from the computer is not either. Charging values can range from 13.8 to as high as 15.8 based on the temperature,
Car battery at 11.8v in the morning and 12.5v after 20 minute
Generally voltage at the battery (after 10-20 min of alternator charging) should be around 14.1~14.5v. If it''s more than 1-2v volts lower, then probably bad alternator function (which can be caused by a loose or deteriorated belt - may not need a new alternator) or some hefty accessory usage. If it''s more than 14.5~15v while idling then there
6 FAQs about [Battery voltage 12 75]
What does a 12 volt battery reading mean?
12.6 volts or more: A voltage reading of over 12.6 volts indicates that your battery is fully charged and in good condition, so there is nothing to worry about. 12.5 volts: A reading of 12.5 volts shows that your battery is healthy and 90% charged.
What is a 12 volt battery?
Realistically, these are called a "12 volt battery" for a reason. Anything over the 12vdc is bonus. You may be used to a battery having 12.5+vdc, but really just because it's a little lower than that is nothing to worry about. If it had a bad cell in it, the voltage would be down around 10.5vdc which would make the electronics go batty.
Is a 12 volt battery dying?
A standard 12-volt battery should have a voltage between 13.5 and 14.5 volts when the car is running. However, you should keep in mind that a battery that reads low isn’t necessarily dying. The best way to find out if your battery is dying is to read the voltage on your battery several times over an extended period.
What is a normal battery voltage?
When a car is running, the battery voltage should read between 13.7 and 14.7 volts. This range is considered normal because the energy is being contributed by the alternator. The voltage level can drop to 12.4 volts when the battery charge is at 75% and around 12 volts when it is at 25% charge.
What volts should a battery read?
A fully charged battery should read between 12.6 and 12.8 volts. Low voltage levels can indicate that the battery needs to be recharged or replaced. Consistently low voltage levels can also indicate that the battery is no longer holding a charge effectively, and it is time for a replacement.
What happens if a battery voltage falls below 12 volts?
Initially, it may seem okay, but there is a problem if the voltage drops rapidly. If the voltage falls below 12 volts, it is usually a sign of a damaged battery, and if it drops to 10.5 volts or lower, you need a new battery.