3S 25A BMS Battery Management System Board – 3S-JH25A-C (11.1V Li-ion)

3S 25A BMS – Battery Management System for 18650 Li-ion Packs

The 3S-JH25A-C is a high-current Battery Management System (BMS) designed for 3-cell series lithium-ion or lithium polymer battery packs (11.1V nominal). It provides overcharge, over-discharge, overcurrent, and short-circuit protection to keep your battery pack safe and extend its lifespan.

Key Features

• 3S configuration — supports three 3.7V Li-ion/LiPo cells in series (11.1V)
• 25A continuous discharge current
• Overcharge protection per cell
• Over-discharge protection per cell
• Overcurrent and short-circuit protection
• Balanced charge support
• Compact PCB design with solder pad connections
• MOSFETs for efficient switching and low heat generation

Specifications

• Model: 3S-JH25A-C
• Cell Configuration: 3S (3 cells in series)
• Nominal Voltage: 11.1V
• Continuous Current: 25A
• Overcharge Cutoff: 4.25V ±0.05V per cell
• Over-discharge Cutoff: 2.5V ±0.1V per cell
• PCB Color: Green

Typical Applications

• 18650 lithium battery packs
• E-bike and scooter battery systems
• DIY power banks and portable power supplies
• Robotics and RC vehicle battery packs
• Solar energy storage systems