Lithium battery watt hour calculator

How to calculate battery watt hours?

Now, to calculate battery watt hours, we will need only 2 key metrics: Amp hours (Ah). This is your 100Ah battery, for example. Voltage (V). Most batteries have a 12V voltage. Some bigger batteries can have 24V or even 48V voltage. Fortunately, all batteries will have both Ah capacity and voltage prescribed on the battery itself (or the label).

Do I need to know the watt hour rating of a lithium battery?

You may need to know the watt hour (Wh) rating of a lithium battery to determine how it should be shipped or to ensure you conform to regulations regarding air travel with lithium batteries. This applies to lithium metal batteries (disposable) and lithium ion batteries (rechargeable).

How many watts in a lithium battery?

You can now calculate as – 4.4Ah x 11.1 volts = 48.8Wh If you need it our Lithium battery watt hour calculator will work out your results for you. See also: Was this article helpful?

How many hours can a 100 watt lithium battery run?

Quick example of why knowing watt-hours (Wh) is useful: A 100Ah 12V lithium battery has a 1,200 Wh capacity. That means that it can run: A 1,200 watt appliance for 1 hour. A 1 watt appliance for 1,200 hours. A 100 watt appliance for 12 hours, and so on. You get the point. Inner structure of a 100Ah lithium battery.

What is a watt hour calculator?

Our watt hour calculator allows you to use electric charge in milliamp or amp hours and voltage in volts to calculate the energy in watt-hours or joules. Amp hours – the shortened name of ampere-hour – indicates how much charge can flow through a battery per one hour.

How do you calculate a battery volt?

This applies to lithium metal batteries (disposable) and lithium ion batteries (rechargeable). This is usually stated on the battery itself (see Image 1). If not, you can calculate it as Volts x amp hours (Ah). example 1: an 11.1 volt 4,400 mAh battery – first divide the mAh rating by 1,000 to get the Ah rating – 4,400/1,000 – 4.4ah.