3-21S Capacitive Active Balancing Board (3A Model)

Description

Pre-Purchase Notice:

This product is mainly used for balancing the voltage of each string in lithium battery packs such as ternary lithium, lithium iron phosphate, and lithium titanate. Before purchasing, please first check if the poor endurance is caused by excessive voltage difference in the battery pack.

Damage to the battery, excessive internal resistance, water ingress, or other such reasons will not be repairable.

The balancing board must be used in conjunction with a protection board! Some polymer batteries can also be used. Remember to consult with customer service in the official store before purchasing.

 

Product Overview

The lithium battery active balancer is specifically designed for large-capacity series-parallel battery packs. It features comprehensive and non-discriminatory balancing for the entire group, automatic low-voltage sleep, and temperature protection functions.

The circuit board is coated with a three-proof paint, which has superior insulation, moisture resistance, leakage protection, shock resistance, dust resistance, corrosion resistance, aging resistance, and corona resistance. It effectively protects the circuit and enhances the product’s safety and reliability.

This product is suitable for ternary lithium, lithium iron phosphate, and lithium titanate batteries.

The 3A model has a minimum balancing voltage difference of 0.01V, with a maximum balancing current of 3A. At a voltage difference of 0.1V, the current is approximately 0.3A (which will actually depend on the battery’s capacity and internal resistance).

The device stops working and enters sleep mode when the battery voltage drops below 2.7V (for ternary lithium/lithium iron phosphate), featuring over-discharge protection.

 

Product Specifications

3A Technical Specifications:

Product Application Scenarios

ThunderLink products are suitable for a variety of scenarios, meeting the application needs of each scenario.

Precautions for Use

1. Always follow the design parameters and operating conditions during use, and do not violate the specifications provided in this document, as this may damage the balancing board and consequently the battery pack.
2. Anti-static measures must be taken during testing, installation, and when handling the balancing board to prevent electrostatic discharge.
3. Be careful not to let wire leads, soldering irons, solder dregs, etc., come into contact with the components on the circuit board, as this could damage the balancing board.
4. If any abnormalities occur during use, please stop using it immediately and return it to the manufacturer or have it repaired by a professional technician.
5. This balancing board has undergone extensive reliability testing and is far more reliable than most balancing boards on the market. At the same time, ensuring the quality of the battery cells’ manufacturing process will help minimize the occurrence of combustion.

Safety Precautions:

Our company is committed to improving quality and reliability; however, electrical products generally have a certain probability of failure. Durability may vary depending on the environment and conditions of use. Use a design with a safety margin to avoid abnormal heating, smoking, or even personal accidents, fire accidents, and social damage due to overloading.

For more detailed usage information, please refer to the corporate technical documents in the Solutions and Cases section of the navigation bar.