how many volts does car battery have?
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Fully charged automotive batteries should measure at 12.6 volts or above. When the engine is running, this measurement should be 13.7 to 14.7 volts. If you don't have a multimeter to tell you the voltage of your battery, you can do a test of your electrical system by starting the car and turning on the headlights.
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Different Sizes of Car Battery Car battery sizes are described in terms of a battery group size. ... The most common battery group sizes are 24, 24F, 25, 34, 35, 51, 51R, 52, 58, 58R, 59, and 65. Manufacturers tend to favor a particular battery group size. Many General Motors vehicles in the US have side-post batteries.
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A: A car battery's weight depends on the size of the battery, but is typically between 30 and 50 lbs, with most running around 41 lbs (14 kg to 22 kg).
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Resting fully charged 12-volt batteries are around 12.8-12.9 volts, and flat dead ones are at 12.0 volts, so 12.4 volts on a resting battery means it's about 50% charged.
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Car batteries will typically have a capacity of 48 amp hours. What this means is a fully-charged 12-volt car battery rated at 48 amp hours can deliver 1 amp for 48 hours or 2 amps for 24 hours. This also means the battery can supply 8 amps for 6 hours under ideal operating conditions.
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A good, healthy car battery should have no fewer than 12.6 volts. Because of the way lead-acid batteries discharge, it's important that you test the battery after it's been sitting for a period of time to get what's called the 'resting voltage'.
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B+ voltage refers to the voltage found at the positive terminal of your battery. With the engine off, this is typically a bit over 12 volts positive, engine running it should be more like 14.4 volts.
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Car batteries provide 12.6V DC (direct current) through six cells, producing 2.1V each. Anything under the 75% charge rate, or about 12.45V, generally indicates the battery is undercharged and will need recharging.
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In this car, the controller takes in 300 volts DC from the battery pack. It converts it into a maximum of 240 volts AC, three-phase, to send to the motor. It does this using very large transistors that rapidly turn the batteries' voltage on and off to create a sine wave.
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12V is a normal voltage for car electronics because car starting batteries use 6 lead-acid 2V cells in series. That's a de-facto standard so all the lightbulbs, radios etc. ... 48V is another common voltage, sometimes chosen because safety regulations require anything over 50V to have warning labels, better insulation etc.
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Car Battery Voltage A fully charged battery should read 12.6 volts or above. When the engine is running, that number should be between 13.7 and 14.7 volts. If the battery is reading at 12.4 volts, then it's 75% charged.
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Most AAA, AA, C and D batteries are around 1.5 volts. Imagine the batteries shown in the diagram are rated at 1.5 volts and 500 milliamp-hours.
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Voltage / Cell Count This is sometimes why you will hear people talk about a "2S" battery pack - it means that there are 2 cells in Series. So a two-cell (2S) pack is 7.4V, a three-cell (3S) pack is 11.1V, and so on.
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The 12 volt 200 amp hour battery in question has a total capacity of 200Ah X 12V = 2400 watt hours. If you use 1200 watt hours that's 50% of capacity and it's time to stop and recharge. To put that in reference to something familiar, headlights on a car are about 100 watts.
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How many amps does a 12-volt car battery have? A typical car battery with 12 volts rating has a capacity of 48 Ah. It means that when fully charged, the battery can deliver one amp for 48 hours, two amps for 24 hours and so on.
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D Battery Voltage For a quick lesson, it is good to know that AAA, AA, C and D batteries are all the same voltage--1.5 volts. What they differ on is amperage, which means that they contain different total amounts of energy (which is also why they are different sizes).
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Generally, a battery is considered dead when it has fallen to about 60% of its original as-new voltage. In the case of a 1.5V, this corresponds to 0.8V, and for a 9V battery, about 5.4V.