A Comprehensive Guide to mAh - The Capacity of Rechargeable Batteries

When considering purchasing a battery-operated device, you may have come across the abbreviation mAh and wondered, "What does mAh mean?" In simple terms, mAh, or milliamp-hour, measures the capacity of rechargeable batteries. In this comprehensive guide, you will gain a deeper understanding of mAh and its impact on battery life. This allows you to make more informed decisions when selecting rechargeable batteries.

What Does mAh Mean On Rechargeable Batteries?

mAh is a small unit of measurement, representing the amount of current (in milliamps) that can be transferred in one hour. It signifies the battery's capacity to store electrical energy and its ability to power a device for a specified period. So it determines how long the battery can be used continuously before needing a recharge.

It is essential to pay attention to the mAh rating of a battery. A higher mAh rating implies that the battery can endure more power and last longer. Thus, it serves as an excellent starting point for evaluating battery capacity and comparing different devices.

Rechargeable batteries, unlike use-and-throw batteries, can be recharged after usage. They can be recharged thousands of times and are ideal for powering high-power-consuming devices. The mAh rating on rechargeable batteries is comparable to that of simple batteries.

Conversion of Charge Capacity Measurements

Now that we have delved into the meaning of mAh, it's time to learn how to convert this measurement into other units, such as Ah and Wh.

How to Convert mAh To Ah?

Since mAh and Ah are interrelated, they both serve as indicators of electric charge. One ampere hour represents the electric charge conveyed in one-ampere current over a duration of one hour. It is measured as amps multiplied by hours, making it a non-SI metric for electric charge. To convert mAh to Ah, simply divide the electric charge by 1000 or the conversion ratio. In simpler terms, one ampere-hour is equivalent to 1000 mAh. The conversion formula is as follows:

Ah (amp hour) = mAh ÷ 1000

For instance, if the mAh of a battery is 5000, the corresponding Ah will be 5000 mAh ÷ 1000 = 5 Ah.

How to Convert Watt hour to mAh?

Both Wh and mAh are commonly used to describe battery capacity. Wh (or Watt hour) represents the energy unit equivalent to one watt of power generated or consumed in one hour. It measures the total electrical power provided to the connected device for an hour.

To convert mAh to Wh, you need to multiply the charge and voltage, then divide the result by 1000 to obtain a watt-hour. The formula to do so is:

E (Wh) = Q (mAh) * V (voltage) / 1000

Let's calculate the watt-hour of a battery with a 10000 mAh capacity that operates at 120 V.

Energy in watt-hour = 10000 mAh * 120 V / 1000 = 1200 Wh.

FJDynamics Best Rechargeable Batteries

In the previous sections, we discussed how mAh affects the overall performance of rechargeable batteries. Now, let's use this knowledge to make informed decisions when selecting electronic devices. If battery life is your top priority, then opting for a device with a higher mAh rating might be the way to go. However, if you prioritize portability and weight, a device with a lower mAh rating could be a better choice.

When it comes to FJDynamics' rechargeable battery-powered generators, they offer multiple ports, including USB charging ports, AC ports, and a DC carport. These generators support charging up to 12 devices at once. So they are an excellent choice for those who need to keep their devices charged on the go. What's more, it is powered by one powerful battery management system (BMS), which ensures both the appliance and the product are protected against overcharge, over-voltage, and short current.

Below, we've listed two of the top FJDynamics products that are equipped with some of the best rechargeable batteries available in the market.

FJD MP2000 Portable Power Station

One of the most popular options in the market is the FJD MP2000 Portable Power Station. This device aims to provide power for a wide range of appliances, including refrigerators, air heaters, blenders, and electric grills. Its built-in lithium-ion battery is detachable, allowing for easy replacement with a fresh battery as required. With over 1000 charge and discharge cycles, this rechargeable battery can last for hours and is protected by multiple layers of metal for safe use. Additionally, it can double as a backup power supply with an extra battery pack.

The high-capacity battery (2264 watt hours) makes it perfect for off-grid needs where safety and reliability are paramount. The device uses a ternary lithium-ion battery that is held in place by three layers of metal protection. This makes it incredibly durable and capable of powering 99% of common household appliances.

FJD 500W Power Station with Wireless Charging

FJD 500W Power Station is known for its versatility and efficiency, particularly its ability to charge multiple devices simultaneously. Besides, the MP500 power station has a 519 watt-hour rechargeable battery. Therefore, it can serve as a primary source of power for a majority of your appliances during power failures.

One of the key features of the FJD 500W Power Station is its wireless charging capability. The 60W PD fast charge technology ensures that devices are charged efficiently. And the multiple charging methods cater to a variety of device requirements. With a rated power output of 500W and relatively high battery capacity, the FJD PowerSec MP500 is a highly versatile power station. Thus, it can provide ultra-quiet and reliable power for 99% of common household appliances and electronic devices. For example, rice cookers, car refrigerators, and CPAP machines.

Final Thoughts

In conclusion, mAh serves as a crucial parameter in determining battery capacity and selecting devices that cater to our needs. By gaining a deeper understanding of rechargeable batteries, we can gain insights into how mAh functions. Then it will help us make informed purchasing decisions. FJD offers an extensive array of the best rechargeable batteries that power a wide range of home devices. Their top-notch portfolio includes MP2000 and MP500 power stations that can efficiently charge various devices for extended periods. To stay updated on exclusive deals and discounts offered by FJDynamics, sign up for our newsletter today.