2S 7.4V LiPo BMS Protection & Balance Charger Module (1723 IC, Mini PCB)

2S 7.4V LiPo BMS Protection & Balance Charger Module

This ultra-compact 2S lithium battery management module is built around the 1723 IC and packs overcharge, over-discharge, overcurrent, and short-circuit protection into a tiny black PCB — perfect for embedding directly into battery packs, wearables, RC models, and portable electronics where space is at a premium.

Key Features

• 2S (2-cell series) LiPo / Li-ion battery protection
• Built-in cell balancing for equal charge distribution
• Overcharge protection: ~4.25V per cell cutoff
• Over-discharge protection: ~2.5V per cell cutoff
• Overcurrent & short-circuit protection
• Ultra-compact black PCB — fits inside slim battery enclosures
• SMD design with onboard inductor for efficient switching
• Clearly marked B+/B− (battery) and P+/P− (output) pads

Specifications

• Cell Configuration: 2S (2 cells in series)
• Nominal Voltage: 7.4V
• Max Charge Voltage: 8.4V (4.2V per cell)
• Protection IC: 1723
• Overcharge Cutoff: ~4.25V/cell
• Over-discharge Cutoff: ~2.5V/cell
• Balance Function: Yes (passive balancing)
• PCB Color: Black
• Form Factor: Ultra-compact SMD module
• Compatible Cells: 18650 / LiPo pouch cells

Applications

• 2S 18650 DIY battery pack assembly
• RC cars, drones, and robots
• Portable power banks and wearables
• Embedded battery protection in slim devices
• Solar and backup power systems

Package Includes

• 1 × 2S 7.4V LiPo BMS Protection Module