BMS NMC01S/2A ( XBL )

BMS NMC 1S 2A XBL

The BMS NMC 1S 2A XBL is a compact hardware battery-management and protection board for a single-series NMC lithium battery configuration with a 2A current designation. In a 1S battery system, one cell group forms the complete pack voltage, so the protection board is selected specifically for single-cell lithium-ion chemistry rather than for multi-series battery arrangements. The compact PCB format makes this type of board suitable for low-power rechargeable products, small battery modules and service replacements where the battery requires a dedicated protection stage between the cell and the external load or charger.

This type of small BMS is intended for low-power single-cell battery packs and compact electronic products where the battery requires a dedicated protection circuit. The exact protection thresholds, PCB dimensions, terminal arrangement, nickel-strip configuration, and charge/discharge port layout can vary between manufacturers even when two boards share the same ""1S 2A"" description. For that reason, this XBL product should be listed using only the specifications that are confirmed for the actual stocked board.

Technical Details

A 1S BMS/protection board is connected between the battery cell and the external charge/load path according to the board's terminal markings. In this type of product category, the protection circuit is generally used to supervise the cell during charging and discharging and to disconnect the path when supported fault conditions are detected. Common 1S lithium protection boards in the market may provide overcharge, over-discharge, overcurrent, and short-circuit protection, but ARB should not publish exact XBL protection functions or trigger voltages until they are confirmed from the exact board or its datasheet.

Use this item only for a compatible 1S NMC/lithium-ion battery design. It should not automatically be used with LiFePO4 simply because another 1S 2A protection board supports both chemistries. LiFePO4 and NMC use different charge-voltage ranges and protection thresholds, so chemistry compatibility must be verified for the exact product.

The 2A rating also should not be interpreted as a universal recommendation for every single-cell device. Confirm the product's required operating current, startup or pulse current, charge current, and the BMS manufacturer's current definition. A device that normally draws near or above the board's supported current requires a different protection solution.

Applications

• Single-cell NMC lithium battery packs using a 1S configuration.

• Portable electronic products and compact rechargeable devices.

• LED products, Bluetooth accessories and small monitoring equipment.

• Prototype battery assemblies and low-power lithium projects.

• Repair and replacement applications requiring a compact 1S 2A protection board.

Installation Guide

Identify the board terminals before connecting the cell. Follow the exact XBL wiring diagram rather than copying a diagram from another brand. Confirm cell polarity, use suitable welding or soldering practices for the board design, insulate exposed conductive areas, and avoid shorting the battery during assembly. If nickel tabs are included on the actual product, verify their intended B+, B-, P+, or P- connection before welding.

Why Choose ARB Accessories?

ARB Accessories specializes in lithium-battery, EV, energy-storage and battery-assembly products for technical buyers across India. The catalog brings together BMS boards, wiring, connectors, fuses, cells, enclosures, testing equipment and assembly accessories in one focused range, helping pack manufacturers, workshops, system integrators and service teams source related components from a single specialist supplier. Clear model naming, electrical ratings and application guidance make it easier to compare parts before ordering, while the wide battery-component range supports both production and maintenance requirements. For reliable results, every component should still be selected according to the actual electrical load, connector interface, battery architecture and installation conditions of the finished system.