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# Battery Charger Rate- Introduction, Calculation And Charging Method

Mar 02, 2021   Pageview：45

Are you surfing on the internet to get some reliable piece of information on battery charger rate? If yes, then you're at the right place because, in this article, you will get to know everything about "Battery Charger Rate- Introduction, Calculation And Charging Method." Whenever it comes to battery charger rate, there are a plethora of questions relating to charging method, calculation, etc., that might confuse you. But you no longer need to get confused regarding it because we've got you covered with excellent and reliable answers.

So, let's start with the article and explore everything about the battery charger rate and its related aspects.

## What is the charging rate on a battery?

The charging rate on a battery in Amps is given in the amount of charge added per unit time of the battery. The charge rates of a battery are often given as C or C-rate, which is generally the estimate of the rate at which the battery is charged relative to its capacity. The C-rate of a battery is defined as the charge current divided by the capacity of the battery to store an electric charge. The charge rate for each battery is determined on the basis of the mass of the active materials that are present in each battery.

As the charge rate on a battery is usually governed by C-rates, therefore the capacity of a battery is commonly rated as 1C. This specifically means that a fully charged battery rated at 1Ah must provide 1A for one hour.

Now, if we talk about the charging rate for a car battery, then, in that case, a basic charger generally charges at around 2 amps, and therefore it needs 24 hours to deliver the 48 amps that are needed by the car battery to get fully charged. In the market, you can easily found multiple varieties of chargers that range between 2 amps and 10 amps. You can select any of them depending on your car battery's charging requirements but always keep in mind- "The higher the charge output, the faster a flat car battery will be charged."

As you have got to know what the charging rate on a battery is, now let's forward and get an insight into how to calculate the charging rate of a battery!

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## How do you calculate the battery charging rate?

Are you wondering about how to calculate the charging rate of a battery in amps? If yes, then we've got you covered! The charging rate of a battery typically depends upon the chemistry or mix of the battery. So, in order to obtain the charging rate of the battery in amps, you must have Watt and volts.

The simple formula for calculating battery charging rate in amps is:

Ampere = Watt / Volts

Let's understand this with the example of an example.

?For example, if you have a power of 15 Watt running at 5 Volts, then, in that case, the charge rate of the battery in Amps will be 3 amps.

So, in this way, you can easily calculate the charging rate of the battery. Now, let's ahead to the final section of the article, where you will get an answer to the most confusing question relating to car battery charging!

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## Should you charge your battery at 2 or 10 amps?

Whenever it comes to charging a car battery, the most confusing question that most of people get stuck with is- "Whether to charge a car battery at 2 amps or 10 amps"? If you're the one who is confused regarding the same thing, then you no longer need to get confused because we are here with an answer!

There are plethoras of ways to charge a car battery and additionally, there are wide range of chargers to choose from. So, whenever it comes to choosing the charger for your car battery, you must always consider whether to go for a 2 amps charger or 10 amps charger. Determining an answer to this question will help you in predicting the charge time that a battery will take to get completely charged.

For car batteries, it is a strict rule of thumb that you must not fast charge the batteries with a charger that exceeds 20 amps. In general, slow charging by using 10 amps charges or less is recommended to be a better option. If we compare between 2 amps or 10 amps, you must always prefer 10 amps chargers because it will help you charge the car batteries in a more effective manner and in quite less time.

You must always make sure not to use a charger of more than 20 amps because a frequent fast charging of a car battery may lead to overcharging, and it will further reduce its performance.

While charging the battery of your car, you must always keep some important tips in mind that will surely help you in maintaining and prolonging the lifespan of your car's battery. Have a look!

• Use a trickle charger

• Clean the terminals of the battery

• Remove the cell caps appropriately

• Attach the charger cables perfectly

## The Bottom Line

That's all! Here you have come down to the bottom line of the article "Battery Charger rate- Introduction, Calculation And Charging Method." We hope that all your queries relating to the battery charger rate, charging method, and calculation have now been cleared in the most precise manner. From battery charging rate to charging your battery at 2 or 10 amps, all the answers above are highly reliable and accurate that will surely clear all your doubts about battery charger rate. And if you are still in doubt relating to any of the other battery issues, then you can also go through our other battery articles because whenever it comes to batteries, we've got everything covered.

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