KingSener
KingSener LK03XL 55.8Wh 4835mAh 11.55V laptop battery
Replacement lithium-ion battery rated 55.8 Wh, 4835 mAh at 11.55 V for HP Envy 15, 17 and x360 models
- ColorBlack
- TypeBattery
- Compatibility55.8WH/4835mAh
- Battery TypeLithium-Ion
- Battery Voltage11.55V
- Battery Capacity4835mAh
- 8 Wh capacity supports longer unplugged sessions
- 4835 mAh rating delivers extended run time per charge
- 55 V output matches original HP Envy specifications
- Lithium-ion cells provide reliable recharge cycles
- Replaces multiple HP part numbers including HSTNN-LB7U and TPN-W127
Replacement battery for HP Envy 17 and 15 series
This KingSener LK03XL lithium-ion cell replaces the original HP battery in compatible Envy 17-AE, 17M-AE, 17-BW and Envy x360 15-BP models. It matches the factory voltage of 11.55V and delivers a rated capacity of 55.8Wh or 4835mAh. The black pack is a direct swap for part numbers including HSTNN-LB7U, HSTNN-UB7O, TPN-W127 and 916368-421.
Steady output through a full workday
The 55.8Wh rating supports extended sessions away from a wall socket without the voltage sag that appears in worn cells. Lithium-ion chemistry holds a stable 11.55V across most of the discharge curve, so the laptop maintains its performance profile until the low-battery threshold. Capacity remains consistent over repeated cycles when the pack is kept at moderate temperature.
Low heat and silent operation
As a solid-state power source the battery generates no fan noise and adds negligible thermal load to the chassis during normal use. Power draw follows the laptop's own demand, peaking only during heavy compute or charging phases. The replacement cell fits the existing bay without altering airflow paths or increasing surface temperature.
Highlights
- 8 Wh capacity supports longer unplugged sessions
- 4835 mAh rating delivers extended run time per charge
- 55 V output matches original HP Envy specifications
- Lithium-ion cells provide reliable recharge cycles
- Replaces multiple HP part numbers including HSTNN-LB7U and TPN-W127
Specifications
| Brand | Kingsener |
|---|---|
| Model | LK03XL |
| Part Number | LK03XL |
| Color | Black |
| Type | Battery |
| Compatibility | 55.8WH/4835mAh |
| Battery Type | Lithium-Ion |
| Battery Voltage | 11.55V |
| Battery Capacity | 4835mAh |
Questions about this item
How much heat does the 11.55 V 55.8 Wh lithium-ion cell produce during a full day of use?
The battery generates only modest warmth during discharge; its lithium-ion chemistry and 11.55 V rating keep internal resistance low, so the pack stays near ambient temperature under normal workloads.
Which original HP part numbers must match for this LK03XL to fit my Envy 17-AE or 15-BP series laptop?
It replaces HP part numbers LK03XL, HSTNN-LB7U, HSTNN-UB7O, HSTNN-UB7I, HSTNN-IB8M, HSTNN-LB8J, TPN-W127, TPN-W128, TPN-W129, TPN-W132, 916368-421, 916814-855, 916368-541, L08855-856, L08934-1B1, L09049-1B1, L09280-855, L09281-855, L09911-141 and L09911-421.
Will the 4835 mAh capacity work with the original 90 W or 120 W charger that came with my Envy 17-AE?
Yes, the 11.55 V 4835 mAh pack accepts the same charge voltage and current limits as the factory battery, so your existing 90 W or 120 W HP adapter will charge it normally.
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