Help is just a phone call away! For example, we can calculate the power in watts by referencing the yellow area in the circle. How to convert Watts to Amps or Amps to Watts or Volts to Watts.

Wattage is the total amount of energy being created and is measured in watts or energy per unit of time. That is if force of one newton pulls something for one meter it is one joule,so if is a weight of about 102 grams (1 N) that is at height of one meter has the energy of one joule. Watt is an SI unit of electric power and is denoted by 'W'. All rights reserved. Purchasing for a business?Apply for a free business account! The power in watts is the real power drawn by the equipment. However, you can still buy a charger with higher amps – it won't hurt your cell phone battery. An ampere, or amp (A or I, for current), is the amount of current in a circuit, while voltage (V) is the strength of the current as it flows through the circuit, and watts (W) are the total electrical power released by circuit per second. For the quickest charge, pick the device that offers the highest wattage.

Sign up to receive info on the latest products, offers & more! In AC circuits, power in watts is equal to the RMS voltage times the current in amps times the power factor. Both watt and VA ratings have a use and purpose. Ampere (amps or amperage) is an SI unit of electric current and is denoted by 'A'. 1 Ampere is defined as the electrical current that flows with electric charge of one Coulomb per second. Amps vs Volts . I = 100 W/6 V = 16.67 amps. In short, high voltage with a few micro amperes cause nothing to the human body like in high voltage supplying cathode ray tube in traditional TV set or high static voltage in the comb. It is a Newton times a meter. But what is battery voltage? Watts represent the amount of energy produced by the amps and volts working together. It's not just cell phones and small devices that rely on chargers – you can also use your knowledge of volts, amps and watts when shopping for car and truck batteries and other common appliances. Multiplying amps (water volume) by volts (water pressure) gives you the wattage (the resulting power or energy). How to Calculate with Watts, Amps, Volts, and Ohms. Wattage is the overall measurement of power that flows through your charger, so a higher cell phone charger wattage means that your device will charge faster. If you're not sure whether your device has a limitation on the type of charger that can be used, check with your manufacturer or drop by your local Batteries Plus Bulbs location and one of our experts will be happy to help you find the perfect cell phone charger, car and truck charger and more. Voltage is the unit of current in your battery and is measured in volts. This pressure makes the current flow through the battery, delivering power to your device. HOWEVER, if you have at least least two of the following three: amps, volts or watts then the missing one can be calculated. Higher amps mean that electricity is flowing more quickly and delivering more power to your device. Store pricing may vary from the price advertised on BatteriesPlus.com. Power (W) = Voltage (V) × Current (A) × PF For example, let’s convert 120 volts to watts, for an AC electrical circuit with 15 amps of current and a power factor of .9. Amps to Watts Calculator. Wattage is the overall measurement of power that flows through your charger, so a higher cell phone charger wattage means that your device will charge faster. 1 watt is defined as the energy consumption rate of one joule per second. I = 100 W/12 V = 8.33 amps.

While different batteries and chargers might power the same device, they don't always deliver the same strength. While current in electricity is measured in amps, voltage describes potential difference across terminals or bodies.

If you're shopping for a new charger and the wattage isn't listed, you can also calculate it with the formula: watts = volts x amps. All rights reserved. We strive to provide the best price available on BatteriesPlus.com and in our stores. The strength of a current – how fast it flows – is measured in amperes or amps. Find a Store for Local Pricing and Availability. Some devices, like the iPhone, have a built-in mechanism that only lets them draw one amp of current, even if your charger can offer more. You cannot convert watts to amps, since watts are power and amps are coulombs per second (like converting gallons to miles). So how do all these things work together to power your device? 1-800-677-8278 In this formula, P is power, measured in watts, I is the current, measured in amperes, and V is the potential difference (or voltage drop) across the component, measured in volts. 1-800-677-8278. If you were to increase the pressure in your pipe, more water would flow through. How does it affect the performance of your battery and your device? Fees may apply for recycling, environmental disposal, and/or labor/installation. All registered trademarks are the property of their respective owners. So how do all these things work together to power your device? Volt-amps are called the "apparent power" and are the product of the voltage applied to the equipment times the current drawn by the equipment. There is an advantage that comes from using less current to make the same amount of power. The power drawn by computing equipment is expressed in watts or volt-amps (VA). So, this latter system produces the same power, but with half the current.

How Volts, Amps and Watts Charge Batteries.

A lot of times this is also displayed as W = V * A or watts equals volts multiplied by amps. If you want to do an electrical calculation involving voltage, current, resistance, or power, reference the formulae circle below. Amperes (amps) and volts are the basic concepts that one learns when studying electricity in physics. Joule is the basic unit for energy. If you're shopping for a new charger and the wattage isn't listed, you can also calculate it with the formula: watts = volts x amps. When you buy batteries, you might notice a variety of battery options with different voltages. Duracell is a registered trademark of Duracell U.S. Operations, Inc., used under license. What would happen if you use a 12-volt battery and a 12-volt light bulb to get 100 watts of power? The simple formula for wattage is: If you increase either the voltage or the amps, you'll create more watts and generate more power. In this guide, we'll explore volts, amps and watts, and learn how much power you need for popular devices and chargers. Copyright ©2020, Batteries Plus LLC. Thinking back to the battery as a water pipe, the current would be the flow rate of the water. Amps, volts, and watts are all ways of measuring different aspects of electricity. Have you ever used a new cell phone battery charger and discovered it takes twice as long as usual to charge? One of the most common questions about phone charger wattage is "how many amps does an iPhone need to charge?". If you think of your battery as a water pipe, the voltage would be the water pressure in the pipe.

The same is true for your battery – higher voltage means higher pressure, so more current flows through the battery. Basics.

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