Beisite
Beisite HK04XL 54Wh/78Wh laptop battery for EliteBook x360 1030 1040 G7 G8
Lithium-ion replacement battery delivering 54Wh or 78Wh at 7.7V for EliteBook x360 1030 and 1040 G7/G8 models
- ColorBlack
- TypeBattery
- CompatibilityFor EliteBook X360 1030 1040 G7 G8 Series
- Battery TypeLithium-Ion
- Battery Voltage7.7V / 7.72V
- Battery Capacity54Wh/78Wh
- Replaces original HK04XL part for EliteBook x360 1030 1040 G7 G8
- Lithium-ion 54Wh/78Wh capacity restores full runtime on compatible laptops
- 7V / 7.72V voltage matches factory spec for safe operation
- Supports multiple HP part numbers including HSTNN-IB9H IB9J L82391-005 006
- Brand-new black battery includes 12-month coverage for peace of mind
Replacement battery for EliteBook x360 1030 1040
This lithium-ion battery replaces the original HK04XL unit in HP EliteBook x360 1030 and 1040 G7 and G8 models. It matches the 7.7V or 7.72V voltage and 54Wh/78Wh capacity ratings. The black pack fits the listed part numbers including HSTNN-IB9H and L82391-005. It is a direct swap for worn or failed cells.
Thermals and power behaviour
Lithium-ion chemistry keeps self-discharge low during normal mobile use. The pack delivers steady voltage across the discharge curve without generating noticeable heat inside the chassis. No active cooling is required and the battery adds no audible noise. Power draw follows the laptop’s own management firmware.
Build integration
The battery occupies the same internal bay as the factory unit, so no case modification is needed. It connects to the existing motherboard header and secures with the original screws. Compatibility covers numerous EliteBook x360 1040 G7 and G8 sub-models such as 119Y7EA and 336F5EA. Users who need a different form factor or higher capacity should look elsewhere.
Highlights
- Replaces original HK04XL part for EliteBook x360 1030 1040 G7 G8
- Lithium-ion 54Wh/78Wh capacity restores full runtime on compatible laptops
- 7V / 7.72V voltage matches factory spec for safe operation
- Supports multiple HP part numbers including HSTNN-IB9H IB9J L82391-005 006
- Brand-new black battery includes 12-month coverage for peace of mind
Specifications
| Brand | HK04XL |
|---|---|
| Model | HK04XL |
| Part Number | HSTNN-IB9H HSTNN-IB9J |
| Color | Black |
| Type | Battery |
| Compatibility | For EliteBook X360 1030 1040 G7 G8 Series |
| Battery Type | Lithium-Ion |
| Battery Voltage | 7.7V / 7.72V |
| Battery Capacity | 54Wh/78Wh |
Questions about this item
How do I install the HK04XL battery in my EliteBook x360 1040 G7 and what step is often missed?
Remove the bottom cover screws, disconnect the old battery connector from the motherboard before lifting it out, then connect the new HK04XL battery cable firmly and replace the cover screws.
What maintenance will the 54Wh lithium-ion battery need over its service life?
No scheduled maintenance is required; the battery will gradually lose capacity after many charge cycles and should be replaced when run time becomes too short for your work.
What is the first limit reached during sustained heavy use of the 7.7V 78Wh pack?
The battery will hit its thermal and voltage limits first, causing the laptop to throttle performance or shut down to protect the cells.
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