Key Features / Highlights 

• High-performance 4.0Ah 40V lithium-ion rechargeable battery – long runtime

• Built-in Battery Management System (BMS) for full overcharge and discharge protection

• Features onboard LED indicator showing charge level at a glance

• Samsung lithium-ion cell technology for stable, reliable power

• Lightweight at just 1.0kg – perfect for extended cordless tool usage

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Product Description 

Power your Hyundai 40V tools with confidence using the official Hyundai 4.0Ah 40V Lithium Battery (HY40B4) – built with premium Samsung cells and full BMS (Battery Management System) protection.

This high-capacity battery pack ensures longer run times, consistent performance, and reliable safety thanks to advanced circuit protection features like overcurrent, overvoltage, and short circuit protection.

A built-in 4-level LED indicator lets you quickly check the remaining charge – whether you're trimming the yard, mowing the lawn, or blowing leaves.

Backed by Hyundai’s trusted quality and engineered for everyday Aussie use, this battery is compatible with all Hyundai 40V outdoor power equipment.

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Specifications

Specification	Details
Model	HY40B4
Battery Type	Samsung Lithium-ion Rechargeable
Rated Capacity	4.0Ah
Voltage	40V
Indicator Lights	4 Green LEDs
Power Levels	100%, >75%, >50%, >25%
BMS Protection	Yes – full safety circuit protection
Weight	1.0 kg

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What’s Included

•  1 x Hyundai 40V 4.0Ah Lithium Battery (HY40B4)

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Delivery & Support Info

•  Fast shipping from local Australian warehouses

•  Genuine Hyundai warranty on all battery products

•  Local support team ready to assist

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