3S 4S 5S BMS 100A Lithium Battery Protection Circuit Board

$11.94 $14.21

Color 1pcs 3S 12V 100A 2PCS 4S 16.8V 100A 2PCS 5S 21V 100A 1PC 4S 16.8v 100A 2PCS 3S 12V 100A 1pcs 4S 16.8V 100A 1pcs 5S 21V 100A

3S / 4S / 5S BMS 100A Lithium Battery Protection Circuit Board

Keep your lithium battery packs running safely and efficiently with this high-performance Battery Management System (BMS) Protection Board. Compatible with 3S (12V), 4S (16.8V), and 5S (21V) configurations, this versatile module supports Li-ion, LMO, and ternary lithium as well as Li-polymer cells rated at 3.7V per cell. With a continuous discharge rating of 100A, it's built for demanding power applications including computer systems, power tools, DIY battery packs, and more.

Made in Mainland China.

Key Features

Multi-String Compatibility: Supports 3S (12V), 4S (16.8V), and 5S (21V) lithium battery configurations
100A Continuous Current: Handles high-load applications with robust MOSFET protection
Balanced Charging: Built-in cell balancing ensures each cell charges evenly, extending overall battery life
Comprehensive Protection: Guards against overcharge, over-discharge, overcurrent, and short circuit events
Wide Temperature Range: Operates reliably from -40°C to +85°C for versatile use in varied environments
SMD Package: Compact surface-mount design for easy integration into custom battery packs
Compatible Cell Types: Li-ion, LMO (Lithium Manganese Oxide), Ternary Lithium (NMC/NCA), and Li-Polymer
New Condition: Brand new module, ready for immediate installation

Specifications

String Configuration: 3S / 4S / 5S
Nominal Voltage: 3.7V per cell
Pack Voltage: 12V (3S) / 16.8V (4S) / 21V (5S)
Max Continuous Current: 100A
Supply Voltage: Up to 21V
Operating Temperature: -40°C to +85°C
Package Type: SMD Module
High-Concern Chemicals: None
Customization: Available

Applications

This BMS board is ideal for a wide range of DIY and professional battery pack builds, including:

Laptop and computer battery replacements
Power tool battery packs
Electric scooter and e-bike batteries
Solar energy storage systems
RC vehicles and hobby electronics
Portable power stations

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Frequently Asked Questions

Q: What battery cell types are compatible with this 3S 4S 5S BMS board?

A: This BMS protection board is compatible with Li-ion, LMO (Lithium Manganese Oxide), ternary lithium (NMC/NCA), and Li-polymer cells rated at 3.7V per cell. It supports 3-cell (3S/12V), 4-cell (4S/16.8V), and 5-cell (5S/21V) series configurations.

Q: Does this BMS board support balance charging for lithium battery packs?

A: Yes, this lithium battery protection circuit board includes a built-in cell balancing function during charging. This ensures each individual cell reaches the same voltage level, maximizing battery capacity and extending the overall lifespan of your battery pack.

Q: What protections does this 100A BMS module provide?

A: The board provides overcharge protection, over-discharge protection, overcurrent protection, and short-circuit protection. These safeguards help keep your battery pack and connected devices safe during both charging and discharging cycles.

Q: Can I use this BMS board for DIY power tool or e-bike battery packs?

A: Absolutely. With a 100A continuous current rating and a wide operating temperature range of -40°C to +85°C, this BMS module is well-suited for high-demand DIY projects including power tools, electric bikes, scooters, solar storage, and portable power stations.