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# Battery Capacity Calculator - Omni.

The voltage on the industry standard 9-volt battery is, obviously, 9 volts. Energizer's 9-volt battery's milliamp hours equal 610, or 5.49 watt-hours. Thus, the 9-volt battery has a greater capacity than the AA, which means that it is likely a 9-volt Energizer battery will outlast a AA battery. If you want to convert between amp hours and watt-hours or find the C-rate of a battery, give this battery capacity calculator a try. It is a handy tool that helps you understand how much energy is stored in the battery that your smartphone or a drone runs on. Additionally, it provides you with a step-by-step instruction on how to calculate amp hours and watt-hours, so you will be able to. The results are estimates only; the actual results will vary with battery condition, age, temperature, discharge rate, and other factors. The predicted results will best represent actual results when using new, high-quality cells at room temperature when the estimated run time is between 1 hour and 1 year. Battery Life Calculator If the capacity of a Battery is defined in terms of Watt Hour, you will need to know the voltage of the battery and the current drawn to be able to calculate the life of a battery. Watt itself is defined as Ampere X Voltage.

How to Convert Milliamp-Hours to Watt-Hours. Milliamp-hours, abbreviated mAh, are a measure of electric charge. They are most often used to measure the electrical charge of a battery. Watt-hours, expressed as Wh, are a measure of electrical energy. Wh are usually used to measure the energy consumption of a circuit or appliance. Actually, watts is the fundamental unit of power and watt-hours is the energy stored. The key is to use the watts you know to calculate the amps at the battery voltage. For example, say you want to run a 250 watt 110VAC light bulb from an inverter for 5 hours. Watt-hours = watts hours = 250 watts 5 hours = 1250 watt hours.

When applied to a lithium-ion battery, watt-hour rating is a measurement of how much energy in watts the battery will expend over one hour. Knowing the watt-hour rating of a lithium-ion battery is crucial to ship it safely by ground, air, or vessel. If you intend to use power tools for commercial use, or any load of 200W for more than 1 hour regularly between battery recharging you should install an auxiliary battery to provide power to the inverter. This battery should be a deep cycle type and sized to meet your run time expectations with the engine off. For example, if you have a 2 Ah battery rated at 5 V, the power is 2Ah 5V = 10Wh. Convert Watt hour to Amp hour Wh to Ah Insert Watts-hour Wh and voltage V below and click on Calculate to obtain Amp-hours. mAh to Wh conversion calculator. Electric charge in milliamp-hours mAh to energy in Watt-hours Wh calculator. Enter the electric charge in milliamp-hours mAh and voltage in.

## How to Calculate Battery Amp Hours - Deep Cycle Battery Store.

It varies from one 9 volt battery model to another. The typical Alkaline 9 volt battery you find in many toys and smoke detectors has 565 mAh Milliampere Hours of power. Starts from Oct. 1st, 2018, this battery has 188 Watt-Hour rated capacity, For comparison, most laptop internal batteries may only have around 40 - 90 Watt-hour capacity. If we rate this battery capacity like many other brand external batteries on market, this battery capacity should be 52200mAh. Jul 31, 2019 · 9V battery amp hours, 9v mah, Resources for designing equipment using 9V batteries from PowerStream.