6S 15A BMS for Li-Ion Batteries – Overcharge, Over-discharge, and Short Circuit Protection

Technical Specifications and Application of BMS Board for 6 Series Lithium Cells (15A)

This 6S 15A Li-ion BMS protection board is designed for battery packs made from six cells in series (e.g., 6×18650 configuration) and provides comprehensive protection and cell balancing for safe operation. It ensures your battery pack operates reliably by guarding against overcharge, over-discharge, over-current, and short-circuit conditions.

Key Features:
✔ Configuration: 6S – for six series-connected Li-ion cells (~21.6 V–25.2 V).
✔ Continuous current rating: up to 15 A – suitable for moderate loads.
✔ Peak discharge current: typically up to ~25 A for short bursts.
✔ Overcharge protection: detects high cell voltage (~4.28 V per cell) and disconnects to prevent overcharging.
✔ Over-discharge protection: triggers around ~2.55 V per cell to avoid deep discharge.
✔ Over-current & short-circuit protection: quickly stops current under fault conditions.
✔ Low standby current: minimal drain when the pack is idle.
✔ Compact PCB: easy to integrate into battery packs and projects.

What It Does:
A BMS (Battery Management System) board monitors and manages the individual cells in a Li-ion battery pack to improve safety, performance, and longevity by preventing cell imbalance and electrical stress.

Applications:
✔ DIY Li-ion battery packs (6×18650);
✔ Electric bikes, scooters and portable vehicles;
✔ Solar energy storage systems and off-grid battery banks;
✔ Portable power tools and devices;
✔ Robotics, automation, and energy projects.

Benefits:

• Cell balancing and protection increase pack life.

• Reduces risk of battery damage, overheating, and safety issues.

• Suitable for both hobby and professional battery assemblies.