4S 15A TDT BMS with Balancer for 12.8V LiFePO₄ Battery Pack

The 4S 15A TDT BMS with Balancer is a reliable Battery Management System (BMS) designed specifically for 4-cell (4S) 12.8V LiFePO₄ battery packs. It provides comprehensive protection against overcharge, over-discharge, overcurrent, short circuit, and helps maintain balanced cell voltages during charging.

Equipped with an integrated balancing function, this BMS improves battery performance, extends battery life, and ensures every cell remains at an optimal voltage level. The 15A continuous discharge capability makes it ideal for low to medium-power applications such as solar energy storage, portable power stations, electric sprayers, robotics, LED lighting, backup power systems, and DIY battery packs.

Built using high-quality MOSFETs and precision protection ICs, the TDT BMS delivers stable performance, efficient heat dissipation, and reliable battery safety for both professional and hobbyist battery builders.

Key Features

• Designed for 4S (12.8V) LiFePO₄ battery packs
• 15A continuous discharge current
• Built-in active cell balancing function
• Overcharge protection
• Over-discharge protection
• Overcurrent protection
• Short-circuit protection
• High-quality MOSFETs for efficient operation
• Improves battery lifespan and charging efficiency
• Compact PCB design for easy installation
• Low power consumption
• Suitable for DIY and commercial battery pack assembly

Applications

• 12.8V LiFePO₄ Battery Packs
• Solar Energy Storage Systems
• UPS Backup Batteries
• Portable Power Stations
• Robotics Projects
• Electric Sprayers
• LED Lighting Systems
• Battery Repair Projects
• DIY Lithium Battery Packs
• Small Electric Vehicles
• Industrial Battery Applications

Specifications

• Product Type: Battery Management System (BMS)
• Brand: TDT
• Battery Type: LiFePO₄ (Lithium Iron Phosphate)
• Battery Configuration: 4S
• Nominal Battery Voltage: 12.8V
• Fully Charged Voltage: 14.6V
• Continuous Discharge Current: 15A
• Balancing Function: Yes
• Overcharge Protection: Supported
• Over-discharge Protection: Supported
• Overcurrent Protection: Supported
• Short Circuit Protection: Supported
• Charging Method: Common Port
• Operating Temperature: -20°C to +60°C
• PCB Material: FR4
• Protection IC: High-Precision Battery Protection IC
• MOSFET: Low Resistance MOSFET

Package Includes

• 1 × 4S 15A TDT BMS with Balancer
• 1 × Connection Guide (if supplied by manufacturer)

Benefits

• Extends battery pack lifespan through automatic balancing
• Protects against unsafe charging and discharging conditions
• Ensures stable battery performance
• Easy to integrate into DIY battery projects
• Compact design saves installation space
• Reliable performance with low heat generation
• Enhances battery safety for long-term operation

Why Choose the 4S 15A TDT BMS with Balancer?

Whether you're assembling a new 12.8V LiFePO₄ battery pack or upgrading an existing one, the 4S 15A TDT BMS with Balancer provides dependable protection and efficient cell balancing. Its advanced safety features, compact size, and durable construction make it an excellent choice for solar systems, robotics, backup power, and DIY battery projects.