Name: 4S 5A BMS NMC18650 Lithium Battery Protection Board
Brand: Zbotic
SKU: AI1054
Price: 139.24 INR
Availability: InStock
Rating: 4.71 (14 reviews)

4S 5A BMS NMC18650 Lithium Battery Protection Board

This 4S 14.8V 10A Lithium battery Protection Board comes with over-charge, over-discharge, over-current and short circuit protection, for a variety of various shapes 3.7V lithium-Ion batteries. HX-4S-A01 is Small size, suitable for many requirements of high integration, low cost of the occasion, to meet a wide range of performance requirements to ensure that the battery pack is absolutely safe and reliable.

Features:

This protection board is suitable for 4 series Li-ion cell
Adopt a precision integrated circuit for fast and safe charging
Support overcharge protection, over-discharge protection, and short circuit protection
This product has gone through load and ageing test for quality assurance

Applications:

Small power inverter
Massager battery pack
LED lamp backup power
Electronic products
Solar street lamp battery pack
Monitoring standby power supply

Package Includes:

1 x 4S 5A BMS NMC18650 Lithium Battery Protection Board

4S 5A BMS NMC18650 Lithium Battery Protection Board Overview

The 4S 5A BMS NMC18650 Lithium Battery Protection Board is a compact battery management system designed for 4-cell 3.7 V lithium-ion packs (NMC18650). It delivers over-charge, over-discharge, over-current and short-circuit protection to ensure safe operation and long service life for your 14.8 V battery assemblies.

Key Features of 4S 5A BMS NMC18650 Lithium Battery Protection Board

Compatible with four series NMC18650 Li-ion cells in a 14.8 V configuration
Precision integrated circuit for fast, safe charging and cell balancing
Built-in over-charge, over-discharge, over-current and short-circuit protection
Supports up to 5 A continuous charge and discharge current
Compact, low-cost design with load and ageing tests for quality assurance
Genuine product with fast shipping from Zbotic

Applications and Use Cases

DIY e-bike and electric scooter battery packs using 18650 cells
Portable power banks and UPS systems requiring 14.8 V modules
Solar energy storage modules and off-grid battery arrays
RC vehicles, drones and model aircraft power management
LED lighting fixtures and portable work lights with rechargeable packs

How to Use 4S 5A BMS NMC18650 Lithium Battery Protection Board

Mount the BMS board inside your battery enclosure and connect the four cell terminals (B-, B1, B2, B3, B+) to each cell group in correct sequence. Attach your pack’s main positive and negative leads to P+ and P– (or C+ and C– for charging). Verify wiring polarity, secure all connections, then perform an initial charge cycle to balance cells and confirm protection functions.

Why Buy from Zbotic?

Genuine Products: All items sourced from authorized distributors
Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
Free Shipping: Free delivery on qualifying orders
COD Available: Cash on Delivery, UPI, cards, net banking
Technical Support: Expert help for setup and troubleshooting
Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

Which cell chemistry is this BMS designed for?

This board is optimized for NMC18650 lithium-ion cells in a 4-series (14.8 V) configuration, but can work with any similarly rated 3.7 V Li-ion cells.

What current limits does it support?

The BMS provides up to 5 A continuous charging and discharging current, with built-in over-current protection to prevent damage from excessive loads.

How are protection functions activated?

All protection features—over-charge, over-discharge, over-current and short circuit—are managed automatically by the onboard precision IC. Faults reset once cells return to safe voltage/current conditions.

Tags: 18650 battery Battery Battery Management Battery Protection BMS Buy Online India Lithium Battery Zbotic

Technical Specifications

Current Rating	5A
Cell Configuration	4S
SKU	AI1054
Weight	0.0091 kg
Availability	In Stock

Applications & Use Cases

The 4S 5A BMS NMC18650 Lithium Battery Protection Board is a versatile battery protection board used across a wide range of applications including lithium battery pack protection, power bank builds, e-bike battery management, solar energy storage, and UPS systems.

Common use cases:

Building a custom lithium battery pack
Adding overcharge/overdischarge protection
Creating a DIY power bank

This product is ideal for battery pack builders and power electronics engineers.

Technical Tip: BMS boards prevent overcharge, overdischarge, overcurrent, and short circuit. Match cell count (S) and max current rating to your battery pack.

Shipping & Delivery

Free shipping on orders above ₹999 across India
Dispatched within 1-3 business days
Expected delivery: 3-7 business days depending on location
Secure packaging to ensure safe transit of electronic components

Weight	0.0091 kg

15 Days Warranty

Please note that this item is only covered by a standard supplier warranty against manufacturing defects for a period of 15days from the time of delivery. It is important to understand that only manufacturing defects are covered under this warranty, and any other issues will not be considered for reimbursement or replacement. We strongly advise inspecting the product upon delivery to ensure it meets your expectations. In case of any manufacturing defects, we guarantee reimbursement or replacement.