3S type C BMS

The 3S Type-C BMS is a 3-cell lithium battery management system with charging and protection functions. It manages series-connected 18650 cells with balancing, overcharge protection, and Type-C charging input.

Key Features

• 3-cell series management (11.1V nominal, 12.6V max)
• Type-C charging input
• Cell balancing for equal charge distribution
• Overcharge protection at 4.25V per cell
• Overdischarge protection at 2.5V per cell
• Overcurrent/short-circuit protection
• Temperature protection (on some models)

Technical Specifications

Applications

• 3S battery pack construction
• 12V power tool battery projects
• Portable 12V power supplies
• Solar charge controllers
• E-bike battery management
• UPS battery systems

Important Notes

• Verify cell voltages are balanced before first connection
• Use cells with similar capacity and internal resistance
• BMS protects but does not replace proper charging practices
• Check continuous current rating meets your application needs
• Some BMS modules require activation after protection triggers
• Never bypass BMS protection – risk of fire/explosion