Hyundai 20V 4Ah Li-ion Replacement Battery for 2nd Generation 20v Range | BI20-4
Hyundai 20V 4Ah Li-ion Replacement Battery for 2nd Generation 20v Range | BI20-4
At a Glance
4Ah lithium-ion battery for Hyundai 20V 2nd Generation tools
Charges in just 120 minutes
Long runtime with real-time status monitoring
Interchangeable across the full Hyundai 20V 2nd Generation range
3-year Hyundai warranty*
Product Details
Description
4Ah Spare Battery for Hyundai 20V 2nd Generation Range
The BI20-4 is a 4Ah lithium-ion spare/replacement battery for Hyundai’s 20V Second Generation range of garden machinery and power tools.
Fast Charging & Long Runtime
It fully charges in just 120 minutes and delivers long runtimes, depending on the tool and task at hand. The integrated LED charge-level indicator keeps you informed of charging progress, while intelligent control that communicates with your tool provides real-time battery status updates.
Advanced TES Technology
Featuring innovative TES energy storage material, the battery absorbs heat and balances discharge temperature. Combined with advanced air channel technology, it offers optimised cooling and prevents overheating.
360° Cell Protection
The robust shell structure protects internal battery cells from external impacts. Its leak- and shock-proof sealed electronics ensure reliable operation even in extreme conditions, providing enhanced safety and extended battery life.
No Memory Effect
The BI20-4 battery is free from the memory effect, so it can be recharged at any time without losing capacity. This ensures maximum flexibility and a longer service life—keeping your tools powered when you need them.
Always Ready
By purchasing additional 20V 4Ah batteries, you can keep multiple units charged and ready, reducing downtime between uses.
In the Hyundai 2nd Generation Range
This 4Ah battery is suitable for use for the , including:
Drill Driver, Impact Driver, Impact Wrench, Angle Grinder, Sander, Reciprocating Saw, Jigsaw, Circular Saw, Grass Trimmer, Hedge Trimmer, Leaf Blower, Chainsaw, Pole Trimmer, and Pole Saw.
Battery Compatibility
Compatible with all 20v 2nd Generation tools only -SKUs starting with HY20
NOT compatible with 20v MAX 1st Generation tools - SKUs starting with HY21
3 Year Warranty
The BI20-4 Hyundai 20V Second Generation 2Ah Li-Ion Battery comes with a 3 year Hyundai warranty* (terms apply) for added peace of mind.
Also on the range is our 2Ah Lithium-ion battery
Specifications
| Model | BI20-4 |
| Compatibility | 20v 2nd Generation Range |
| Battery (ah) | 4 |
| Voltage (v) | 20 |
| Gross Weight (kg) | 0.65 |
| Net Weight (kg) | - |
| Package Dimensions (H x W x L) (mm) | - |
| Product Type | Battery |
| Warranty (years) | 3 |
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Free UK Delivery*
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