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3S/4S/5S 100A Li-ion BMS Protection Board with Cell Balancing for 18650 Batteries
Availability:
In stock
Rs.930.00
Product Description
Protect your compatible multi-cell lithium-ion battery pack with this 3S/4S/5S Battery Management System (BMS) protection board. Designed for battery packs made with conventional 3.6V/3.7V nominal Li-ion cells, this module combines battery protection functions with cell balancing to support safer battery-pack operation.
Suitable for compatible 18650 battery assemblies and custom lithium-ion projects, the board is intended to help protect battery cells from common electrical faults during charging and discharging.
Key Features
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3S/4S/5S Configuration: Supports compatible 3-cell, 4-cell or 5-cell series battery-pack configurations, subject to the board's configuration requirements.
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Battery Protection: Commonly advertised protection against overcharging, excessive discharge, overcurrent and short circuits.
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Cell Balancing: Helps manage voltage differences between cell groups during charging, subject to the board's balancing specifications.
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For Li-ion Battery Packs: Intended for compatible conventional 3.6V/3.7V nominal lithium-ion cells, including suitable 18650 assemblies.
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High-Current Design: Marketed as a 100A BMS. Actual continuous charging and discharging limits must be confirmed for the supplied board.
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Custom Battery Projects: Suitable for compatible battery-pack construction, repairs and electronics projects when correctly selected and installed.
Typical Applications
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Custom 18650 lithium-ion battery packs
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Compatible portable power systems
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Battery-powered tools and equipment
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DIY battery storage projects
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Electronics and battery-pack repair projects
Technical Specifications
| Specification | Details |
|---|---|
| Product type | Li-ion Battery Management System (BMS) |
| Supported series configurations | 3S / 4S / 5S, subject to board configuration |
| Compatible cell chemistry | Conventional 3.6V/3.7V nominal Li-ion |
| Cell format | Compatible 18650 and other suitable Li-ion cells |
| Advertised current rating | 100A; confirm actual continuous current rating |
| Balancing function | Advertised; balancing current to be confirmed |
| Protection | Overcharge, over-discharge, overcurrent and short circuit, subject to exact model |
| 3S full-charge voltage | 12.6V |
| 4S full-charge voltage | 16.8V |
| 5S full-charge voltage | 21.0V |
| Charging equipment | Compatible Li-ion charger matched to the selected configuration |
| Dimensions | Confirm with supplier |
| Package contents | 1 × BMS protection board, unless otherwise specified |
Important Installation Notes
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Confirm the exact 3S, 4S or 5S configuration supported by your board before installation.
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Use only compatible lithium-ion cells and a charger with the correct charging voltage.
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Follow the wiring labels and the manufacturer's connection diagram carefully. Incorrect balance-wire sequencing may damage the BMS or battery pack.
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Do not select the board based on the advertised 100A figure alone. Verify continuous discharge current, charging current, wiring, cooling and fuse requirements for your application.
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Do not use this board with LiFePO₄ batteries unless the specific model is explicitly rated for that chemistry.
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A BMS is not a substitute for correct cell selection, pack assembly, insulation and appropriate electrical protection.
Choose the correct BMS configuration for your battery pack before use.