4S 14.8V 30A Lithium Battery Protection Board BMS Module

The 4S High Current Lithium Battery Protection Board is designed to protect and manage 4-cell lithium battery packs used in high-power applications. With support for up to 30A continuous discharge, it offers stable performance and safeguards the battery pack against overcharge, over-discharge, short circuit, and overcurrent conditions. It ensures battery reliability and long service life in DIY power banks, robotics, solar systems, and portable energy storage applications.

Features:

1. Designed for 4S Lithium Battery Packs (14.8V nominal / 16.8V full charge)
2. Supports up to 30A high-current output
3. Provides over-charge, over-discharge, overcurrent and short-circuit protection
4. Balancing function to maintain consistent cell voltage
5. High-quality MOSFETs ensure stable and efficient load handling
6. Compact and easy to integrate into battery packs
7. Suitable for DIY battery packs, portable power systems, robotics, e-bikes and solar storage units

Specifications:

1. Battery Type: 4S Lithium Battery Pack
2. Nominal Voltage: 14.8V
3. Full Charge Voltage: 16.8V
4. Continuous Discharge Current: 30A
5. Charging Voltage: 16.8V
6. Overcharge Detect Voltage: Approx. 4.25V ±0.05V per cell
7. Overcharge Release Voltage: Approx. 4.15V ±0.05V per cell
8. Over-discharge Detect Voltage: Approx. 2.7V ±0.1V per cell
9. Over-discharge Release Voltage: Approx. 3.0V ±0.1V per cell
10. Balancing Function: Yes
11. Protection Type: Overcharge / Over-discharge / Overcurrent / Short circuit
12. Operating Temperature: –20°C to +60°C
13. Board Type: 4S BMS High-Current Protection Board

Package Includes:

1 × 4S High Current 30A Lithium Battery Protection Board