Product Description
The 4S 15A lithium battery BMS module is a high-performance solution designed to provide advanced protection and efficient power management for lithium battery packs. It supports 4-series (4S) lithium-ion and LiFePO4 batteries, ensuring safe operation through intelligent control systems.
This BMS module protects against overcharge, over-discharge, short circuit, and temperature issues, making it ideal for applications like EVs, solar systems, UPS, and DIY battery setups.
Technical Specifications
| Parameter | Specification / Range |
| Supported Battery Type | LiFePO₄ (LFP) |
| Series Configuration | 4S (4 cells in series) |
| Nominal Pack Voltage | ~12.8 V |
| Continuous Charge Current | Up to 15A |
| Continuous Discharge Current | Up to 15A |
| Peak / Surge Discharge Capability | (depends on model) |
| Overcharge Detection Voltage | 3.65 V ± 0.05 V per cell |
| Overcharge Release Voltage | 3.55 V ± 0.05 V per cell |
| Overdischarge Detection Voltage | 2.50 V |
| Overdischarge Release Voltage | ~2.70 V |
| Balance Function | Passive balancing |
| Balance Current | ~30 mA typical per cell |
| Operating Temperature | Around –40 °C to +85 °C |
| Standby / Quiescent Consumption | Low (μA level) |
| Protection Features | Overcharge, overdischarge, overcurrent, short circuit |
| Connections / Wiring | B+, B–, B1, B2, B3 taps; P+, P– terminals |
Key Features
Supports 4S lithium battery configuration
Continuous 15A discharge current capacity
Overcharge & over-discharge protection
Short circuit & overload protection
Temperature control for enhanced safety
Low heat generation & high efficiency
Compact and easy to install design
Applications
Electric Vehicles (E-Bikes, Scooters)
Solar Energy Storage Systems
UPS & Backup Power Systems
DIY Battery Packs
Robotics & Electronics Projects
Why Choose This 4S 15A BMS Module?
Choosing the right BMS is essential for battery safety and performance. This 4S 15A lithium battery BMS module ensures:
Longer battery life
Stable charging and discharging
Protection from battery damage
Reliable performance in all conditions
It is suitable for both bulk buyers and individual users, offering consistent and dependable results.
