12.6V 3S 10A BMS Protection Circuit Board – for 18650 by Ekastore

🔋 12.6V 3S 10A BMS Protection Circuit Board – for 18650 Battery Packs

This Battery Management System (BMS) is designed to safely charge and discharge 3S (3 series) 18650 lithium-ion battery packs. It provides overcharge, over-discharge, short-circuit, and overcurrent protection, making it ideal for DIY battery packs in robotics, e-bikes, power banks, and other applications.

✅ Key Features:

• Battery Type Supported: 3S (3 x 3.7V = 11.1V nominal, 12.6V fully charged) 18650 lithium-ion cells

• Rated Discharge Current: 10A

• Overcharge Protection Voltage: ~4.25V ±0.05V per cell

• Over-discharge Protection Voltage: ~2.5V ±0.1V per cell

• Overcurrent Protection: Yes

• Short-circuit Protection: Yes

• Balance Charging: No (non-balancing BMS)

• Size: ~45mm × 60mm (varies slightly depending on version)

📌 Pin Configuration:

• B+ → Positive terminal of battery pack

• B- → Negative terminal of battery pack

• B1, B2 → Intermediate connections between the cells

• P+ / P- → Output terminals to load/charger

🔐 Protections Offered:

🛠️ Applications:

• 12.6V lithium-ion battery packs

• RC vehicles and robotics

• DIY power banks and solar projects

• E-bikes, e-scooters, and backup systems

📦 Package Includes:

• 1 × 3S 10A BMS Protection Circuit Board (without wiring or connectors)