Hi friends, welcome to the new post. In this post, we will discuss the 2025 Comprehensive Guide on 3S Lipo Battery & its Applications, Pros & Cons. The 3S lipo is a rechargeable battery configured on lithium-ion technology. It uses polymer electrolytes rather than liquid electrolytes. It comes with high energy density in a compact structure and is best for small sizes where weight is important. The 3S lipo comes with 3 individual batteries in a single pack. So let’s get started with 3s lipo battery
What is a 3S Lipo Battery?
The 3S lipo battery is a lithium polymer battery for RC uses and electronics. The 3S is a battery pack with three series of connected cells.
The overall voltage for this battery is 11.1 volts (3 cells x 3.7 volts), with each cell having 3.7 volts.
This balanced value offers good power to operate different RC models.
This battery is neither unimpressive nor overbearing, offers good operation, is easy to use, and is best for RC users.
How Does a 3S Lipo Battery Work?
The Lipo battery is made with separate cells and connected to make a specific battery. One Lipo cell comes with a nominal voltage of 3.7 volts. Connection in series voltage increase that means 7.4 volts will get from two cell battery, 11.1 volts for three cell battery. and 14.8V for a 4-cell battery, etc.
Advantages of 3S Lipo Batteries
It is best for starters since their high energy density helps to store enough energy in small areas. It covers longer runtime for RC cars, drones, and some other electrical devices.
Its good discharge rate helps to generate steady power generation and high power operation.
This battery is less weight than other nickel batteries, reducing the total weight of devices.
Disadvantages of 3S Lipo Batteries
- Some disadvantages of lip batteries are
- It supported less recharge life, which is about 300 to 400 cycles.
- It needed special care at the time of charging, discharging, and storage.
- It is high-cost and double the price of a Li-Ion battery.
Applications of 3S Lipo Batteries
- Its common uses are
- Drones, radio-controlled equipment, and aircraft.
- Personal electronics.
- Electric vehicles.
- Uninterruptible power supply systems.
- Jump starter.
Maintaining of 3S Lipo Batteries
- To maintain the battery condition, do not drain the cell less than 3.0 volts. So 3S lipo will be dead for 9 volts. But there is a storage charge that is a safe voltage for cells to work longer, which is more than 3.8 volts.
- Not charging over 4.2 volts per cell or over discharging less than 3 volts per cell. Do not leave Lipo Pakes unattended at the time of charging in the vehicle. Do not leave the battery pack plugged into the vehicle when not in use.
Understanding LiPo Battery Numbers
These numbers on the Lipo battery define the configuration, and the battery that comes with 2S means it has two cells in a series. 3S means three cells are in a series combination.
High voltage is high power, and high capacity is longer working time.
Here is the voltage for the Lipo types used for RC cars:
- 1SÂ battery: 1 x 3.7V =Â 3.7V
- 2SÂ battery: 2 x 3.7V =Â 7.4V
- 3SÂ battery: 3 x 3.7V =Â 11.1V
- 4SÂ battery: 4 x 3.7V =Â 14.8V
- 5SÂ battery: 5 x 3.7V =Â 18.5V
- 6SÂ battery: 5 x 3.7V =Â 22.2V
- 8SÂ battery: 5 x 3.7V =Â 29.6V
What is the voltage of 3 S LiPo batteries?
The voltage of the S series can be defined through the battery name. In the 3S lipo battery, the nominal voltage is 11.1. Each cell provides 3.7 volts when connected in series. In 3S battery, the full voltage rate is
- Fully charged voltage = 12.6V (4.2V per cell)
- Nominal voltage = 11.1V (3.7V per cell)
- Low voltage cutoff = 9V (3V per cell)
11.1 v lipo battery
11.1V Lipo comes with 3 cells; when completely charged, it has 12.6 volts combined or 4.2 volts for single cells. 11.4 volts is about 50 percent of the capacity left.
This battery is used in airsoft guns, planes, remote control cars, etc.
3S lipo rc battery
The 3S Lipo battery is a common lithium polymer alternative to RC electronics. The 3S defines the battery pack as three series of connected cells. The total voltage is 11.1 volts, and each cell has a nominal voltage of 3.7 volts.
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What is LiPo battery cell count?
LiPo battery pack configured denoted of lipo cells in series and number of lipo cells in parallel combination. The 4S2P pack can come with four cells in series combination and two cells in parallel, for a total of 8 cells. The 4000mAh 4S2P pack comes with a capacity of 4000mAh (2 x 2000mAh) and a voltage of 14.8V (4 x 3.7V).
LiPo batteries each cell has a nominal voltage of 3.7V. 1S = 1 cell = 3.7V. 2S = 2 cells = 7.4V. 3S = 3 cells = 11.1V.
What is LiPo battery capacity?
Battery capacity is the amount of energy stored and measured in milliampere hours or ampere hours. Capacity is about 28000 Mah,
What is Discharge Rating (C Rating)?
The C rate is a measurement of the rate over which the battery is discharged according to high capacity. The 1C rate is the discharger current that discharges the battery in one hour. In case of a capacity of 100 Amp-hrs, a discharge current of 100 Amps
discharge C rate = discharge current/battery capacityÂ
Such as if a 3.7v 1000mAh LiPo battery discharges 5000mA, then its
discharge C rate=5000mA/1000mAh=5C.
relationship between C rating and discharge time:
C Rating | Discharge Time |
---|---|
1 | 1 hour |
2 | 30 minutes |
3 | 20 minutes |
4 | 15 minutes |
5 | 12 minutes |
capacity of 3S LiPo batteries
3S Lipo Battery 2000mah
- This battery is stable for weight and power ratio. The average cost of this battery is about 20 to 25 dollars based on battery type. It makes the battery best for RC projects like RC plans.
3S Lipo Battery, 3500mah
- It is best for different uses, but not limited to high-performance drones, RC aircraft, medical instruments, and cameras. Its price is $30 to $35.
3S Lipo Battery 5000mah
- It is used for high-performance devices. Since it comes with high power capacity, the runtime of electronic projects becomes double. It is best for RC planes and vehicles, drones, etc.
Internal Structure of a Lithium Polymer Battery
- 4 components of this battery are a positive electrode, a negative electrode, a separator, and an electrolyte.
- The separator can be of a polymer, such as a microporous film of polyethylene; if the cell has a liquid electrolyte, it will be polymer.
- The positive electrode is divided into three parts: lithium-transition metal oxide (LiCoO2Â or LiMn2O4), a conductive additive, and a polymer binder of poly(vinylidene fluoride) (PVDF).
- The negative electron also has three parts replacing carbon with lithium-metal-oxide. The main difference between lithium polymer cells and lithium-ion cells is the physical layout of electrolytes. iPo cells use dry solids, gel-like, while Li-ion cells use liquid electrolytes.
How long does a 3S LiPo battery last?
- The capacity of the battery is important for working longer. High battery capacity means longer backup. Such a 3S lipo battery with 500 mAh can work longer than a 200 mAh battery.
- The devices that use more current will draw larger current. The larger drone depletes the battery faster than that low-power toy.
- The discharge is rare and also affects battery backups. 3S Lipo battery has a high continuous discharge rate of 10C to 20C. If we cross it, it will reduce battery working life.
- The 3S battery 5000 mAh comes with this runtime.
- Connected with a 1000 mA device: 5-hour
- Connected with a 2000 mA device: 2.5 hours
- Powering a 5000mA device: 1 hour
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Faqs
How do I know what size LiPo battery to buy?
It is a larger size or rating that is normally mentioned on the Lipo pack and shown in mAh or Ah. Capacity is the main factor.
What is a safe low voltage for 3S LiPo?
Do not use batteries less than 3 volts and avoid larger currents. Use less than 3.5 volts.
How many amps do you charge a 3S LiPo at?
The 3 amps are good. For finding a safe charging ampere on the battery, divide Mah by 1000 and minus 0.5, which is the amper you charge the battery at.
How many volts should a 3S LiPo charge to?
As the battery comes with a 3S configuration, it is denoted with a nominal voltage of 11.1 volts. The completely charged 3S pack is  12.60V and a fully discharged 3S pack is 9.00V.
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What is the maximum voltage for a 3-cell LiPo battery?
The 3S lipo battery comes with a nominal voltage of 11.1 volts, the highest charging voltage of 12.6 volts, and a cutoff voltage of about 9 volts.
What voltage is 7.4 v LiPo?
The Lipo battery is full when it reaches maximum voltage. The conventional Lipo cell maximum voltage is 4.2 volts, and LihV is 4.35 volts. It means that voltage for fully charged 2S LiPo (7.4 volts) is 8.4 volts and that of LiHV batteries is 8.7 volts.
What voltage is a LiPo battery dead?
The workable voltage range of a standard lipo battery cell is 3.2 volts to 4.2 volts. The lower value was 3.2, and the battery was damaged. higher voltage than 4.2 volts and increase the chances of battery damage.
What is the max charge on a 7.4 V LiPo battery?
The conventional Lipo cell 3.7 maximum voltage is 4.2 and LiHV 4.35 volts. It means that the voltage of a completely charged 2S LiPo (7.4 volts) is 8.4 volts and that of LiHV batteries is 8.7 volts.
What voltage is a full-charge 12V LiPo?
The 12v lithium-ion LiFePO4 battery, completely charged at about 100 percent, will have a voltage of about 13.3 to 12.4 volts. Its lead acid type will be equal to 12.6-12.7v.
What is the maximum charge voltage?
It is the voltage of the battery over which the battery is not charged. For a LiPo battery, the maximum charge voltage is 3.2 volts to 4.2 volts per cell.
What is the maximum voltage of a 12V battery?
The maximum charge voltage of an NMC 12-volt battery is 12.6 volts. The highest charging voltage for different 12-volt batteries can be different: 14.7 volts for lead-acid batteries in starting conditions, 13.8 volts for continuous charging, 14.8 volts for LFP batteries, and 12.6 volts for NMC lithium-ion batteries.
What is a good voltage for a 12v battery?
The fully charged 12-volt battery must be at 12.6 volts on the meter. If the reading is less than, there is a need to charge the battery with a battery charger or take the car for a drive.