In recent years, LiPo batteries have become increasingly popular for powering a variety of devices, from small remote-controlled models to large drones. As a result, it is important to understand the 4S notation used to classify LiPo batteries. This article will provide an overview of the 4S system and explain how it can help you make informed decisions when purchasing a LiPo battery.
What is 4S?
4S is a term used to describe the number of cells in a Lithium Polymer (LiPo) battery pack. Each cell has a nominal voltage of 3.7 volts, so a 4S pack has a total nominal voltage of 14.8 volts. This information is important when choosing the appropriate battery for your drone or other RC vehicle as it affects the power output and flight time.
In addition to indicating the number of cells, the “S” also stands for “Series”. This means that each cell is connected in series to create an overall higher voltage output. However, it’s important to note that while increasing the number of cells in a LiPo battery will increase its overall voltage and power output, it can also increase its weight and cost.
Overall, understanding what 4S means on LiPo batteries is crucial for selecting the right battery for your device and ensuring safe and efficient operation during use.
What Is a LiPo Battery?

A LiPo battery, or Lithium Polymer battery, is a rechargeable battery that uses a polymer electrolyte instead of a liquid electrolyte. This technology allows for higher energy density and lower weight than other rechargeable batteries. LiPo batteries are commonly used in remote control vehicles, smartphones, and other portable devices due to their high power output and lightweight design.
The term “4S” on a LiPo battery refers to the number of cells in the battery pack. Each cell has a nominal voltage of 3.7 volts, so a 4S battery will have a nominal voltage of 14.8 volts (3.7V x 4). The “S” stands for “series,” meaning that the cells are connected in series to increase the overall voltage of the battery pack.
When selecting a LiPo battery for your device, it’s important to consider not only the voltage but also the capacity (measured in milliamp hours or mAh) and discharge rate (measured in “C”). The capacity determines how long your device can run on one charge while the discharge rate determines how quickly you can draw power from the battery without damaging it.
How Does 4S Affect LiPo Batteries?
When it comes to LiPo batteries, 4S is a term used to describe the number of cells or modules that are connected in series. This means that a 4S LiPo battery has four individual cells wired together in such a way that their voltages add up. Therefore, each cell contributes approximately 3.7 volts to make a total voltage output of around 14.8 volts.
The use of a 4S LiPo battery can have several effects on its performance and lifespan. Firstly, it may increase the overall capacity since more cells translate into higher energy density and longer run times. However, this also means that charging and discharging must be carefully monitored to avoid over-voltage or over-current situations that can damage the battery.
Another effect of using a 4S LiPo battery is on power delivery and efficiency, especially for high-performance applications such as drones or RC cars. The higher voltage output allows for faster acceleration and greater top speeds but also requires suitable motor controllers or ESCs capable of handling higher wattage levels without overheating or failing prematurely. Overall, understanding how 4S affects LiPo batteries is essential for optimizing their performance and avoiding potential risks associated with improper usage or maintenance practices.
Benefits of Using 4S LiPo Batteries
LiPo batteries are commonly used in drones and other RC vehicles, and the 4S designation refers to a battery that has four cells. Using a 4S LiPo battery can offer several benefits over other types of batteries. One of the biggest advantages is increased power output, which allows for longer flight times and better performance overall.

Another benefit is the compact size of these batteries. Because they have more cells than other types of batteries, they can deliver the same amount of power in a smaller package. This makes them ideal for use in smaller drones or in tight spaces where larger batteries may not fit.
Finally, 4S LiPo batteries are generally more reliable than their counterparts. They tend to hold their charge better over time, and they also have built-in safety features that help prevent overcharging or overheating. Overall, if you’re looking for a high-performance battery for your drone or RC vehicle, a 4S LiPo battery is definitely worth considering.
Considerations When Choosing a 4S LiPo Battery
4S in LiPo battery refers to the number of cells it has, which means that it is a 4-cell battery pack. When choosing a 4S LiPo battery, there are several considerations that you need to take into account.
One of the primary factors to consider is the capacity of the battery. The capacity determines how long the battery will last on a single charge and will depend on your specific needs and usage patterns. Additionally, you need to look at the discharge rate, which dictates how fast power can be drawn from the battery.
Another crucial consideration when choosing a 4S LiPo battery is its physical dimensions and weight. You must ensure that it fits into your drone or device without affecting its overall balance or performance negatively. Lastly, you need to pay attention to the brand’s reputation and reviews from other users before making your final decision as not all brands manufacture batteries with equal quality standards.
In summary, before purchasing any LiPo 4S batteries for your drones or other devices, make sure you consider their capacity, discharge rates, physical dimensions/weight and reputable brand name so that you get optimum results from them while ensuring safety during use.
Summary and Conclusions
In summary, 4S on LiPo battery refers to a single battery pack that contains four individual cells connected in series. Each cell provides around 3.7 volts of power, which means that a 4S LiPo battery has a total voltage output of approximately 14.8 volts.
This type of battery is commonly used in remote-controlled vehicles, drones, and other electronic devices that require high-powered batteries for optimal performance. It is important to note that LiPo batteries can be dangerous if not handled properly, so it is essential to follow specific guidelines for charging and usage.
In conclusion, understanding what the term “4S” means on a LiPo battery is crucial for anyone using these types of batteries in their electronic devices. By knowing the voltage output and potential hazards associated with these powerful batteries, users can ensure they are using them safely and effectively.