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How to Use 4S LiPo battery 16.8v: Examples, Pinouts, and Specs
Design with 4S LiPo battery 16.8v in Cirkit DesignerIntroduction
The 4S LiPo (Lithium Polymer) battery is a high-performance power source with a nominal voltage of 16.8 volts. It consists of four cells connected in series, each with a nominal voltage of 4.2V. This type of battery is widely used in applications requiring high energy density and discharge rates, such as drones, RC vehicles, and other high-power electronic devices.
Explore Projects Built with 4S LiPo battery 16.8v
18650 Li-ion Battery Pack with 4S40A BMS and XL4016 Voltage Regulator for Battery-Powered Applications
This circuit is a battery management and charging system for a 4S Li-ion battery pack. It includes multiple 18650 Li-ion batteries connected to a 4S40A BMS for balancing and protection, a battery indicator for monitoring charge status, and an XL4016 module for voltage regulation. The system is designed to be charged via a 20V input from a charger.
Open Project in Cirkit Designer18650 Li-ion Battery Pack with BMS for 5V Power Supply
This circuit consists of a battery management system (BMS) connected to a series of 18650 Li-ion batteries arranged in a 4S configuration to provide a regulated output voltage. The BMS ensures safe charging and discharging of the batteries, while a connector provides a 5V output for external devices.
Open Project in Cirkit DesignerBattery-Powered 18650 Li-ion Charger with USB Output and Adjustable Voltage Regulator
This circuit is a battery management and power supply system that uses three 3.7V batteries connected to a 3S 10A Li-ion 18650 Charger Protection Board Module for balanced charging and protection. The system includes a TP4056 Battery Charging Protection Module for additional charging safety, a Step Up Boost Power Converter to regulate and boost the voltage, and a USB regulator to provide a stable 5V output, controlled by a push switch.
Open Project in Cirkit DesignerBattery-Powered Adjustable Voltage Regulator with Li-ion 18650 Batteries and BMS
This circuit is a power management system that uses four Li-ion 18650 batteries connected to a 2S 30A BMS for battery management and protection. The system includes step-up and step-down voltage regulators to provide adjustable output voltages, controlled by a rocker switch, and multiple DC jacks for power input and output.
Open Project in Cirkit DesignerExplore Projects Built with 4S LiPo battery 16.8v
18650 Li-ion Battery Pack with 4S40A BMS and XL4016 Voltage Regulator for Battery-Powered Applications
This circuit is a battery management and charging system for a 4S Li-ion battery pack. It includes multiple 18650 Li-ion batteries connected to a 4S40A BMS for balancing and protection, a battery indicator for monitoring charge status, and an XL4016 module for voltage regulation. The system is designed to be charged via a 20V input from a charger.
Open Project in Cirkit Designer18650 Li-ion Battery Pack with BMS for 5V Power Supply
This circuit consists of a battery management system (BMS) connected to a series of 18650 Li-ion batteries arranged in a 4S configuration to provide a regulated output voltage. The BMS ensures safe charging and discharging of the batteries, while a connector provides a 5V output for external devices.
Open Project in Cirkit DesignerBattery-Powered 18650 Li-ion Charger with USB Output and Adjustable Voltage Regulator
This circuit is a battery management and power supply system that uses three 3.7V batteries connected to a 3S 10A Li-ion 18650 Charger Protection Board Module for balanced charging and protection. The system includes a TP4056 Battery Charging Protection Module for additional charging safety, a Step Up Boost Power Converter to regulate and boost the voltage, and a USB regulator to provide a stable 5V output, controlled by a push switch.
Open Project in Cirkit DesignerBattery-Powered Adjustable Voltage Regulator with Li-ion 18650 Batteries and BMS
This circuit is a power management system that uses four Li-ion 18650 batteries connected to a 2S 30A BMS for battery management and protection. The system includes step-up and step-down voltage regulators to provide adjustable output voltages, controlled by a rocker switch, and multiple DC jacks for power input and output.
Open Project in Cirkit DesignerTechnical Specifications
Key Technical Details
| Parameter | Value |
|---|---|
| Nominal Voltage | 16.8V |
| Cell Configuration | 4S (4 cells in series) |
| Capacity | Varies (e.g., 2200mAh, 5000mAh) |
| Maximum Discharge Rate | Varies (e.g., 20C, 30C) |
| Maximum Charge Voltage | 16.8V |
| Minimum Discharge Voltage | 12.0V |
| Connector Type | XT60, Deans, etc. |
| Balance Connector | JST-XH |
Pin Configuration and Descriptions
Main Power Connector (e.g., XT60)
| Pin | Description |
|---|---|
| 1 | Positive Terminal |
| 2 | Negative Terminal |
Balance Connector (JST-XH)
| Pin | Description |
|---|---|
| 1 | Cell 1 Positive |
| 2 | Cell 1 Negative / Cell 2 Positive |
| 3 | Cell 2 Negative / Cell 3 Positive |
| 4 | Cell 3 Negative / Cell 4 Positive |
| 5 | Cell 4 Negative |
Usage Instructions
How to Use the 4S LiPo Battery in a Circuit
Connecting the Battery:
- Connect the main power connector (e.g., XT60) to the power input of your device.
- Ensure the polarity is correct: Positive to Positive, Negative to Negative.
- Connect the balance connector (JST-XH) to a compatible balance charger for charging.
Charging the Battery:
- Use a LiPo-compatible balance charger.
- Set the charger to 4S (16.8V) mode.
- Set the charge current according to the battery's capacity (e.g., for a 2200mAh battery, set to 2.2A).
Discharging the Battery:
- Monitor the voltage to ensure it does not drop below 12.0V.
- Use a LiPo alarm or voltage monitor for safety.
Important Considerations and Best Practices
- Safety First: Always handle LiPo batteries with care. They can be dangerous if punctured, overcharged, or short-circuited.
- Storage: Store the battery at a voltage of around 3.8V per cell (15.2V for a 4S) in a cool, dry place.
- Balancing: Regularly balance charge the battery to ensure all cells are at the same voltage.
- Temperature: Avoid charging or discharging the battery at extreme temperatures.
Troubleshooting and FAQs
Common Issues Users Might Face
Battery Not Charging:
- Solution: Check the charger settings and ensure it is set to 4S mode. Verify all connections are secure.
Battery Swelling:
- Solution: This indicates overcharging or over-discharging. Stop using the battery immediately and dispose of it safely.
Uneven Cell Voltages:
- Solution: Perform a balance charge to equalize the cell voltages.
Shortened Flight Time (for drones):
- Solution: Check for any damaged cells. Ensure the battery is fully charged and balanced.
FAQs
Q: Can I use a 4S LiPo battery with an Arduino UNO? A: Directly connecting a 4S LiPo battery to an Arduino UNO is not recommended due to the high voltage. Use a voltage regulator to step down the voltage to 5V or 7-12V for the Arduino's input.
Q: How do I safely dispose of a LiPo battery? A: Discharge the battery completely, then take it to a local battery recycling center.
Q: What is the maximum safe discharge rate? A: The maximum discharge rate is specified by the manufacturer (e.g., 20C, 30C). Exceeding this rate can damage the battery.
Q: How often should I balance charge my LiPo battery? A: It is recommended to balance charge the battery every time you charge it to maintain cell health and performance.
By following these guidelines and best practices, you can ensure the safe and efficient use of your 4S LiPo battery in various high-power applications.