5-Pack 2S 7.4V BMS 18650 Li-ion Battery Protection Board
5-Pack 2S 7.4V BMS 18650 Li-ion Battery Protection Board
5-Pack 2S 7.4V BMS Lithium Battery Protection Boards
Keep your DIY battery packs safe and performing at their best with this 5-pack of 2S 7.4V BMS lithium battery protection boards. Built with high-quality MOS tubes and dot nickel strips, these compact modules deliver four-in-one safety protection for 18650 Li-ion and lithium LiPo battery cells — perfect for hobbyists, makers, and electronics enthusiasts.
Key Specifications
- Configuration: 2S (7.4V nominal)
- Continuous Discharge Current: 2A / 3A / 4.5A / 6A / 7.5A / 9A (optional)
- Instantaneous Discharge Current: ≤3µA
- Charging Voltage: 3.7V per cell
- Charging Current: 2–9A
- Operating Temperature: 0–50°C
- Material: High-quality MOS Tube & Dot Nickel Strips
- Compatible Cells: 18650 Li-ion / Lithium LiPo
- Quantity: 5 boards per pack
Why Choose These BMS Protection Boards?
- Four-in-One Safety Protection: Guards against overcharge, over-discharge, overcurrent, and short circuit — all in one compact module.
- Multiple Current Ratings: Choose from 2A, 3A, 4.5A, 6A, 7.5A, or 9A to suit your specific project requirements.
- Premium Construction: High-grade MOS tubes and dot nickel strips ensure stable, reliable performance and a long service life.
- Wide Operating Temperature Range: Functions across 0–50°C, making it adaptable to a variety of working environments.
- Compact & Easy to Integrate: Slim profile fits neatly inside battery enclosures and DIY electronic builds.
- Ready to Use: No complex setup required — simply wire into your battery pack and you're protected.
Ideal Applications
These BMS boards are designed for a wide range of DIY electronics and battery-powered projects, including:
- Custom 18650 battery pack assemblies
- RC vehicles and robotics
- Portable power banks
- LED lighting systems
- DIY power tools and home automation projects
What's in the Box?
- 5× 2S 7.4V BMS Lithium Battery Protection Boards
Made in Mainland China.
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Frequently Asked Questions
Q: What does a 2S BMS lithium battery protection board do?
A: A 2S BMS (Battery Management System) protection board monitors and safeguards a 2-cell series lithium battery pack (7.4V nominal). It actively protects against overcharge, over-discharge, overcurrent, and short-circuit conditions, helping to extend battery life and prevent damage to your cells or connected devices.
Q: Which battery cells are compatible with these BMS boards?
A: These boards are compatible with standard 18650 Li-ion and lithium LiPo battery cells connected in a 2S (series) configuration. They are ideal for DIY battery packs used in portable electronics, RC projects, power banks, and more.
Q: Can I choose the discharge current rating?
A: Yes! These BMS boards are available in multiple continuous discharge current options: 2A, 3A, 4.5A, 6A, 7.5A, and 9A. Select the rating that best matches your project's power requirements at the time of purchase.
Q: Are these boards easy to install for DIY projects?
A: Absolutely. The boards feature a compact, ready-to-use design that can be quickly soldered or connected into your battery pack wiring. Their small form factor makes integration into battery enclosures and electronics housings straightforward, even for beginners.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.