What Does mAh Stand For in Batteries?

If you have a bunch of questions regarding mAh and rechargeable batteries, you’ve come to the right place, as this article will shed some light on the topic.

In order to define mAh, we must say that it stands for a mill ampere-hour. AmAh represents the 1000th of an ampere-hour (Ah). These measurements are widely used to see the energy charge of a battery. So, the mAh determines the amount of time needed for a battery to recharge.

What Does mAh Mean in Rechargeable Batteries?

Although we’ve already pointed out that mAh indicates the energy storage of a battery, what does this actually mean?

The milliampere hour stands for a unit of measuring electrical power over time. It points the amount of energy a battery is capable of storing. Depending on the type of battery, the mAh will be measured differently. Still, one rule applies in most cases – the higher the mAh rating in the case of rechargeable batteries, the more electrical energy the battery can store.

A rechargeable battery with a higher mAh is capable of powering a device that uses more energy. Using the mAh rating of a battery is a quick and efficient way of comparing the energy storing power of different batteries.

Let’s take an example: a battery whose mAh rating is of 2500 is capable of powering a device drawing 1000 milliamps for 25 hours or, alternatively, 250 milliamperes for 10 hours.

How Long Does a Smartphone Battery Last According to Its mAh Value?

When it comes to traveling, in particular, you most likely want to know how much the battery will last. Otherwise, you might consider getting an additional portable charger or battery – especially on a plane, to be on the safe side.

The thing is that there are just a couple of smartphones that are renowned for their surprising battery life. In fact, over the past five years, the capacity of smartphone batteries hasn’t improved that much. Most smartphones fall into the category of batteries sized between 3,000 and 3,300 mAh. These values were the most popular a couple of years ago as well.

Popular battery sizes for smartphones

At the moment, the average capacity for smartphone batteries is marginally above 3,300 mAh. Still, the most popular sizes are 2000 mAh, 3000 mAh, and 4000 mAh. For example, before the release of the iPhone 6, the previous iPhones were equipped with a 1500 mAh lithium-ion battery.

Given the current standards, 2000 mAh batteries, 3000 mAh batteries, and 4000 mAh batteries last longer. If a device necessitates 1,000 milliamps to be powered on the hour, a 3000 mAh will last for roughly 3 hours. As for a 2000 mAh battery, it will last for about 2 hours or so. Using the same judgment, a 4000 mAh battery will last around 4 hours.

And while 4000 mAh batteries won’t necessarily be the norm in the following years, we will be seeing more smartphones that are better equipped in this direction, that’s for sure. For instance, the popular Huawei P20 Pro comes with a 4000 mAh battery that delivers as expected. There are even some smartphones equipped with a 6000 mAh battery – such as the Samsung Galaxy M20.

Types of use

The battery life of your device will most likely be influenced by the type of usage as well. So, if you use your phone intensively, roughly a few hours straight, the battery will most likely drain sooner than later. On the other hand, if you use your phone regularly or you’re more conservative, the odds are that you’ll get more usage out of your phone’s battery life.

Overall expected battery use until depleted

As a rule of thumb, cell phone batteries may last up to three years, depending on the number of charges. Lithium-ion batteries – which are usually the norm for most smartphones – have a limited number of charges. According to estimates, a smartphone battery can be recharged 400 times or so. This is why we could say that the type of usage determines the lifespan of a battery.

Useful formulas

Let’s have a look at some formulas that will most likely come in handy. You can use them to calculate the durability of phone batteries and all types of batteries for a change.

  • mAh to Watt-hours

If you want to convert mAh to watt-hours, you should use the following formula: (mAh)*(V)/1000 = Wh. For instance, if you have a 300mAh battery, which is rated at 5V, the power would be 300mAh * 5V /1000 = 1.5 Wh.

  • mAh to volts

It’s worth noting that voltage and mAh are two different types of measurements. Therefore, you could use this information for making the calculations you need: 1000 mAh equals a 1 amp-hour (AH) rating. A battery that is rated at 1000 mAh will most likely supply voltage at 1 amp for a timeframe of 1 hour.

  • mAh to amps

Making this conversion is quite easy, as 1 amp entails 1000 milliamps. Concurrently, 1 ampere equals 1000 milliamps or 1 amp.

Why it’s important to know the mAh and Wh of your batteries?

Knowing the mAh and Wh of your battery is significant because you want to invest in a device that comes with a powerful battery that will meet your needs.

A battery with a higher mAh is capable of storing more power. But you should also look into the overall quality of the battery – such as the material from which it’s made, as this is extremely important as well.

The lifespan of your battery will also depend on usage habits. If you use multiple apps at the same time, this will make your battery drain sooner than later. Since the Wh is the voltage supplied by a battery, it indicates the power capacity of the battery. So, you can understand why these factors should be taken into consideration whenever you’re on the lookout for a durable, high-quality battery.