BMS LFP 4S 20A BLUE SQURAE 8181A (TDT) (51a0)

TDT BMS LFP 4S 20A 8181A BLUE SQURE Hardware

Product Data Sheet

The BMS LFP 4S 20A Blue Square 8181A (TDT) is a high-quality Battery Management System designed for 4-cell (4S) LiFePO₄ battery packs, providing up to 20A continuous discharge capacity. With its compact blue square form factor, this BMS ensures superior thermal performance, high power handling, and durable operation.

Technical Specifications

• Mode: TDT-8114
• input Voltage B+ to B-: -0.3~+16.8V
• Overcharge Detection voltage/1CELL: 4.25±0.05V
• Over discharge Detection voltage/1CELL: 2.7±0.1V
• suggest working temperature: -20°C~+60°C
• Over current: 15~25A

Features & Benefits

• 20A High Current Output: Handles high-demand devices like motors and power tools.
• Smart Balancing Function: Ensures uniform voltage across all cells, extending battery life.
• Compact Blue Square Form: Easy to install and thermally optimized layout.
• Advanced Safety Protections: Includes overcurrent, overvoltage, undervoltage, temperature, and short-circuit safeguards.
• Plug & Play Design: Easy terminal identification and soldering points for quick integration.
• Ideal for OEMs and DIY Projects: Suited for commercial battery packs and custom-built applications.

Applications

• Solar Inverter Storage Packs
• Electric Bicycles / E-rickshaws
• Emergency Backup Systems
• Robotics Power Modules
• DIY Powerwalls
• Energy Management Systems
• LED Power Banks and Tools

The PCM ensures the safe operation of the battery by providing protection against overcharge, over-discharge, overcurrent, and short circuit conditions. This helps maintain the battery's health, extend its lifespan, and prevent potential damage. The Blue Square designation likely refers to the specific design or appearance of the module, which could indicate a particular brand or series of protection modules. This PCM is typically used in 4-series LiFePO4 battery packs, offering an optimal balance of protection and power handling for various applications.