Dell HW-296 4S 40A Li-ion Battery Protection Board – 14.8V 18650 BMS

HW-296 4S 40A Lithium-Ion Battery Protection Board

The Dell HW-296 4S 40A Battery Protection Board is a battery protection module designed for 4-series lithium-ion battery packs. It is listed for use with 18650, 26650 and lithium-polymer battery configurations.

This board is designed to provide battery protection functions including overcharge protection, over-discharge protection and overcurrent protection.

The HW-296 is listed with a maximum continuous discharge current of 40A and a charging-current rating of up to 20A. Actual operating current depends on the battery pack, wiring, load and cooling conditions.

Key Features

• 4S Battery Configuration: Designed for 4-series lithium-ion battery packs.

• 40A Maximum Continuous Discharge: Listed maximum continuous discharge rating of 40A.

• Charging Current: Listed charging current up to 20A.

• Battery Protection: Overcharge, over-discharge and overcurrent protection functions.

• MOSFET-Based Control: Uses MOS transistors to control battery charging and discharging.

• Compact PCB: Listed board dimensions are approximately 45 × 60 × 4mm.

• Battery Pack Projects: Suitable for compatible lithium-ion battery pack applications.

Technical Specifications

Voltage note: The seller listings give different charging-voltage ranges. Confirm the exact charging-voltage requirement of your supplied HW-296 board before connecting a charger.

Applications

• Compatible 4S lithium-ion battery pack projects

• 18650 battery pack assemblies

• Compatible 26650 battery pack assemblies

• Lithium-ion battery-powered equipment

• Battery-powered drill projects, subject to pack and current compatibility

• DIY battery protection projects

Installation & Safety

• Confirm that the battery pack is a compatible 4S lithium-ion configuration.

• Verify the board's terminal markings before wiring.

• Connect the cell balance wires in the correct sequence.

• Confirm battery polarity before connecting the load or charger.

• Use a charger appropriate for the battery chemistry and pack voltage.

• Do not exceed the board's stated current ratings.

• Provide suitable cooling and wiring for the intended load.

• Do not use this board with a different battery chemistry unless the manufacturer confirms compatibility.

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