# Question: Do Cars Have AC Or DC?

## Is a 12v car battery AC or DC?

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..

## Why does Tesla use an AC motor?

IMHO, AC Propulsion (Tesla Motors) uses AC because a mechanically commutated DC motor that meets the high “turn down” ratio of a vehicle application is more complex than an electronically commutated AC motor. Without that high turndown ratio the physical size of the motor producing just raw torque would be prohibitive.

## How many amps is a Tesla battery?

Tesla allows charging current to be up to 4 amperes. Therefore the maximum power that a Tesla battery pack can can use for charging is 4.2 X N X I where N is the number of cells in the pack and I is the maximum current allowed per cell. For 85/90 kWh packs this is 7,104 X 16.8=119.3 kW.

## Which is more dangerous AC or DC?

A.C. is More Dangerous than D.C. A.C. is said to be four to five times more dangerous than D.C. For one thing, A.C. causes more severe muscular contractions. For another, it stimulates sweating, which lowers the skin resistance. … The frequency of the AC has a lot to do with the effect on the human body.

## Are cell phones AC or DC?

The power that comes from the grid is always AC power. When charging portable electronic devices (e.g. mobile phones, electric vehicles), the power needs to be converted from AC to DC.

## Do Tesla cars run on AC or DC?

Tesla uses 3-phase modulating inverter drivers, and the Tesla Roadster uses an AC induction motor. A DC brushless motor is the same thing, except instead of using laminations on the rotor, it uses magnets.

## Is battery DC or AC?

Batteries only supply DC voltage and wall plugs only supply AC voltage. However, it is totally possible to have both AC and DC voltage at a certain point: If an AC voltage is oscillating between -60V and +60V it has 120Vpp AC and 0V DC because the average voltage of -60V and +60V is 0V.

## Does Tesla use brushless motors?

Today, all the hybrids are powered by DC brushless drives, with no exceptions. The only notable uses of induction drives have been the General Motors EV-1; the AC Propulsion vehicles, including the tzero; and the Tesla Roadster. Both DC brushless and induction drives use motors having similar stators.

## What voltage is a Tesla motor?

DataBattery voltage:375 VCharging time:120 V:48 hrs (15 A); 240 V: 4 hrs (90 A); 480 V/3 phase (80 A)Battery swap:5 minutesMotor power:380-hp for 60-kWh & 85-kWh/470-hp for P85 AWD: 188-hp front & rear/221-hp front & 470-hp rear P85AutopilotForward-looking camera, radar & 360-degree ultrasonic sensors21 more rows

## Which is more efficient AC or DC motor?

AC motors are generally considered to be more powerful than DC motors because they can generate higher torque by using a more powerful current. However, DC motors are typically more efficient and make better use of their input energy.

## What is the DC symbol?

Unicode Character “⎓” (U+2393)Name:Direct Current Symbol Form TwoCharacter is Mirrored:NoHTML Entity:⎓ ⎓UTF-8 Encoding:0xE2 0x8E 0x93UTF-16 Encoding:0x23938 more rows