12v Battery Run Time Calculator-Calculating, Cycle Life and Choice

Do you find yourself in the need of a 12-volt battery for your appliance, but wondering how long the battery will run? If so, then you’re in the right place for that. Continue reading the post below and learn everything about the 12v battery run time calculator. To put in simple words, you’ll learn how to measure battery run time, how long a 12v battery lasts, and factors to be taken into consideration to choose a good battery run time calculator.

How do you calculate battery run time?

Before you learn how to calculate battery run time, let’s first have a solid understanding of what does run time actually means. Well, it means how long a battery charge will last under a specified load. Assuming the battery is full charged beforehand and how long the battery lasts depends on the following three things:

• The first one is the battery’s mechanical condition.

• The second one is the amount of current that the load draws.
  

• The thirst one is the system’s integrity, and the system could be the wires and inverter joining everything up.
  

You can use the below formula to measure run time is most appliances using a 12v battery: 10 x battery capacity in amp hours) divided by (application load in watts). Indeed, this info appears on the label of the lead-acid battery and in the small print on the application.

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Let’s take an example: you would like to know long you can run a 100-watt TV off a battery that’s rated 60 amp-hours. Use the above formula: [(10 X 60) ÷ 100] = 6 hours maximum run time.

Keep in mind that you would probably come across several battery run calculators using a different formula from the one mentioned above. Before using the calculator, make sure to go through the guidelines thoroughly so as to use the calculator rightly. To put in simple words, make sure to first comprehend the parameters that the calculator requests you to enter. This, in turn, helps you get a precise outcome. No worries, if you’re wondering which online calculator to use, continue reading to determine the good battery run time calculator on which you can rely on.

How long will a 12V battery last?

The most common formula used to determine battery life is: (battery capacity in milliampere-hours) divided by (load current in milliamperes). So, how long a 12v will last is calculated by two factors, which are the capacity of the battery and the load current of the circuit.

The battery capacity is the amount of current overall that a battery can deliver fresh out of manufacturing. Every battery has a battery capacity rating. It is a total amount of current, which a battery can deliver in milliamperes during the lifetime. Thus, if a battery features a battery capacity rating of 2000mAH, then it can deliver 2000 milliamperes of current during the lifetime. It means that it can deliver 20mA for 100 hours, and 200mA for 10 hours.

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When it comes to load current, it is the amount of current that load of the circuit consumes. To put in simple words, the amount of current that’s being drawn in the circuit. It’s imperative as the battery is known as the power source. The more current the circuit’s load consumes, the faster the battery turns out to be drained, as more current is used. The less current the load of the circuit consumes, the longer the battery will then lasts. Thus, if you utilize less demanding load in a circuit, it will enable the battery to live longer.

Battery life is very imperative in electronic circuit design. The batteries that are in use must last at least several hours. Indeed, nobody would like to see a battery to die after an hour of use for an appliance. That’s why determining the battery life is important, especially if you’re building a circuit.

You will find so many battery life calculators online and these only provide an estimation. The reason behind this is that battery life is even significantly affected by several other factors, for instance, usage, maintenance, temperature, humidity. These all can play as factors in how long your battery will last.

How do you choose a good battery run time calculator?

If you look online for a battery run time calculator, then you would probably come across several options to choose from. With so many options available online, it becomes challenging to determine which battery run time calculator is good enough to use. Isn’t, it right? The first thing you should know that you’re not alone who’s going through the hassle. So, which one to rely on? The short answer to the question is there’s no trick to determine which one is a good one to use.

Instead, no matter which one you’re using, make sure to first fully understand the parameters of that calculator to get the precise outcome. As mentioned before, calculators available online to determine battery run time or battery life just give estimation. They can’t be utilized an exact battery run time calculator. As battery run time or life can be affected by several other factors.

That’s it. We hope that this post has come handy for you to have some idea about how to calculate battery run time. One thing that we would like to tell you that make sure to be cautious while working with batteries.